Specifications | Cisco Systems 3.5 Switch User Manual

Cisco Active Network Abstraction
Administrator’s Guide, 3.5
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
© 1999 - 2006 Cisco Systems, Inc. All rights reserved.
Important Notice
Important Notice
Cisco ANA 3.5 is a carrier-class, multi-vendor network and service
management platform which builds a real-time virtual model of the network,
serving as a live information base for value-added tools and applications for
integration into an existing OSS environment.
Cisco ANA 3.5 is a limited release by Cisco Systems of the existing features
and functions of the Sheer DNA 4.0.1 software.
As this is a limited release, the naming of the product in the software and the
user documentation remains as Sheer DNA.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
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Important Notice
Cisco Product Security Overview
Cisco provides a free online Security Vulnerability Policy portal at this URL:
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tml
From this site, you can perform these tasks:
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
Never use a revoked or an expired encryption key. The correct public key to
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tml
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Important Notice
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and
S4 service requests. (S3 and S4 service requests are those in which your
network is minimally impaired or for which you require product
information.) After you describe your situation, the TAC Service Request
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For S1 or S2 service requests or if you do not have Internet access, contact
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your production network is down or severely degraded.) Cisco engineers are
assigned immediately to S1 and S2 service requests to help keep your
business operations running smoothly.
To open a service request by telephone, use one of the following numbers:
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For a complete list of Cisco TAC contacts, go to this URL:
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Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco
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• Severity 1 (S1)—Your network is “down,” or there is a critical impact to
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• Severity 2 (S2)—Operation of an existing network is severely degraded,
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• Severity 3 (S3)—Operational performance of your network is impaired,
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• Severity 4 (S4)—You require information or assistance with Cisco
product capabilities, installation, or configuration. There is little or no
effect on your business operations.
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Packet magazine is the Cisco Systems technical user magazine for
maximizing Internet and networking investments. Each quarter, Packet
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Important Notice
Internet Protocol Journal is a quarterly journal published by Cisco Systems
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operating public and private internets and intranets. You can access the
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World-class networking training is available from Cisco. You can view
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
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About This Guide
About This Guide
This Administrator’s Guide describes the structure and features of the
Sheer™ Dynamic Network Abstraction (DNA) system. Sheer DNA Manage
is the GUI client application designed to simplify and facilitate Sheer DNA
administration. Sheer DNA Manage enables the System Administrator to
configure and control the DNA system. Sheer DNA Manage interacts with
the Sheer DNA Registry (“Golden Source”) to query and modify
configuration information. This guide is intended for use by trained System
Administrators.
It includes the following chapters:
Chapter 1, Introducing Sheer DNA, page 1, describes the Sheer™ DNA
platform and architecture. In addition, it provides a brief explanation of the
terms used throughout this guide.
Chapter 2, Getting Started with Sheer DNA Manage, page 13, describes
the Sheer DNA Manage working environment and how to open and operate
the Sheer DNA Manage application.
Chapter 3, Deploying Sheer DNA, page 57, describes the steps that must be
performed to deploy the Sheer DNA.
Chapter 4, General DNA Manage Tables, page 61, describes how to
perform general Sheer DNA Manage functions when working with tables.
Chapter 5, Managing Sheer DNA Units, page 69, describes how to manage
Sheer DNA Units. This includes adding and removing Sheer DNA Units.
Chapter 6, Managing AVMs and VNEs, page 79, describes how to define
and manage AVMs and VNEs.
Chapter 7, Managing Global Settings, page 107, describes how to define
and manage the Sheer DNA Manage global settings, including client licenses,
DNA database segments, customizing a message of the day (service
disclaimer), polling groups, and protection groups.
Chapter 8, Managing Links, page 127, describes how to add and remove a
topological link between two ports of two Network Elements in the network.
Chapter 9, Managing Workflows, page 133, briefly describes the Workflow
Engine branch in the Sheer DNA Manage application.
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Chapter 10, Managing Sheer DNA Security, page 135, describes how
Sheer DNA implements a three-dimensional security engine combining a
role-based security mechanism with scopes that are granted to users. In
addition, it describes managing users in the Sheer DNA platform, including,
defining users and passwords.
Appendix A, Utility Scripts, page 155, describes the Sheer DNA utility
scripts including how to restart the Sheer DNA Platform.
Appendix B, Golden Source Registry, page 157, provides details of the
Golden Source Registry.
Appendix C, Ports Used by Sheer DNA, page 159, provides a list of the
ports used by the various Sheer DNA Server and Client applications.
Appendix D, Drools Rules Engine, page 161, introduces and describes
Drools.
Note: Changes to the Registry should only be carried out with the support of
Cisco Professional Services.
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Cisco Systems, Inc.
Introducing Sheer DNA
Table of Contents
1
2
Introducing Sheer DNA .................................................................. 1
1.1
The Sheer Solution...................................................................................................1
1.2
Sheer DNA Components..........................................................................................4
1.2.1
Autonomous VNE ................................................................................................4
1.2.2
The Sheer DNA Servers......................................................................................4
1.2.3
Sheer DNA Clients...............................................................................................5
1.3
Sheer DNA Manage Control Functionality.............................................................6
1.4
Additional Concepts and Terms .............................................................................7
1.5
Terminology and Conventions..............................................................................11
Getting Started with Sheer DNA Manage.................................... 13
2.1
Starting Sheer DNA Manage..................................................................................13
2.2
The Sheer DNA Manage Window ..........................................................................15
2.2.1
Sheer DNA Manage Tree Pane.........................................................................15
2.2.2
Sheer DNA Manage Window Workspace .........................................................18
2.3
2.3.1
DNA Servers Branch .........................................................................................20
2.3.2
DNA Server Entities Branch ..............................................................................24
2.3.3
AVM Branch.......................................................................................................29
2.3.4
Global Settings Branch ......................................................................................33
2.3.5
Scopes Branch ..................................................................................................44
2.3.6
Topology Branch................................................................................................47
2.3.7
Users Branch .....................................................................................................49
2.3.8
Workflow Engine Branch ...................................................................................52
2.4
3
Sheer DNA Manage Window, Menus and Toolbar ..............................................19
Logging Out ............................................................................................................56
Deploying Sheer DNA................................................................... 57
3.1
System Setup Flow ................................................................................................57
3.2
User and View Setup Flow.....................................................................................60
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4
5
6
General DNA Manage Tables ....................................................... 61
4.1
Working with DNA Manage Tables .......................................................................61
4.2
Finding Text in a Table ..........................................................................................63
4.3
Filtering Information ..............................................................................................63
4.4
Setting Selection Filters ........................................................................................65
4.5
Sorting a Table .......................................................................................................67
4.6
Exporting the Table to a File .................................................................................68
Managing Sheer DNA Units ......................................................... 69
5.1
What is a DNA Unit?...............................................................................................70
5.2
Adding New Sheer DNA Units...............................................................................71
5.3
Editing Sheer DNA Unit Properties ......................................................................73
5.4
Removing a Sheer DNA Unit .................................................................................75
5.5
Finding a Unit/AVM/VNE ........................................................................................76
Managing AVMs and VNEs .......................................................... 79
6.1
Creating AVMs........................................................................................................80
6.2
AVM Status..............................................................................................................82
6.2.1
Admin and Oper Mode AVM Status ..................................................................83
6.3
Viewing and Editing an AVM’s Properties ...........................................................83
6.4
Deleting an AVM .....................................................................................................84
6.5
Starting and Stopping AVMs.................................................................................85
6.6
Moving AVMs ..........................................................................................................86
6.7
VNEs Overview .......................................................................................................87
6.7.1
VNE Status ........................................................................................................88
6.7.2
Admin and Oper Mode VNE Status...................................................................89
6.8
Defining VNEs.........................................................................................................89
6.8.1
General Tab.......................................................................................................92
6.8.2
SNMP Tab .........................................................................................................94
6.8.3
Telnet / SSH Tab ...............................................................................................96
6.8.4
ICMP Tab...........................................................................................................98
6.8.5
Polling Tab.........................................................................................................99
6.9
Viewing and Editing a VNE’s Properties............................................................101
6.10
Deleting a VNE......................................................................................................103
6.11
Changing the VNE’s State ...................................................................................104
6.12
Moving Multiple and Single VNEs ......................................................................105
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Introducing Sheer DNA
7
Managing Global Settings.......................................................... 107
7.1
Managing Client Licenses ...................................................................................107
7.1.1
7.2
Viewing DB Segments .........................................................................................112
7.3
Customizing a Message of the Day ....................................................................113
7.4
Managing Polling Groups....................................................................................114
7.4.1
Polling Groups Overview .................................................................................114
7.4.2
Customizing a Polling Group ...........................................................................116
7.4.3
Modifying a Polling Group ...............................................................................118
7.4.4
Deleting a Polling Group..................................................................................119
7.4.5
Adaptive Polling ...............................................................................................119
7.5
8
9
Viewing Client License Properties ...................................................................109
Managing Protection Groups ..............................................................................121
7.5.1
Checking Assignment of Protection Groups to DNA Units..................................123
7.5.2
Changing Protection Groups for DNA Units .......................................................123
7.5.3
Viewing and Editing Protection Group Properties...............................................125
7.5.4
Deleting a Protection Group ..............................................................................126
Managing Links ........................................................................... 127
8.1
Creating a Static Link...........................................................................................127
8.2
Removing a Static Link........................................................................................131
Managing Workflows .................................................................. 133
9.1
About the Sheer Workflow Editor.......................................................................133
9.2
Workflow Engine Branch.....................................................................................134
10 Managing Sheer DNA Security .................................................. 135
10.1
Security Overview ................................................................................................135
10.1.1
Scopes.............................................................................................................135
10.1.2
Default Permissions.........................................................................................136
10.1.3
Security Access Roles .....................................................................................136
10.2
Customizing Security Flow .................................................................................139
10.3
Creating Scopes ...................................................................................................140
10.3.1
Editing a Scope and Viewing a Scope Properties ...........................................142
10.3.2
Deleting Scopes...............................................................................................142
10.4
Creating New Sheer DNA User Accounts ..........................................................143
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10.5
A
Granting or Editing a User’s Rights ...................................................................146
10.5.1
General User’s Rights......................................................................................146
10.5.2
User’s Security Rights .....................................................................................148
10.5.3
Map User Permissions ....................................................................................151
10.6
Deleting a Sheer DNA User Account..................................................................152
10.7
Changing a User’s Password..............................................................................152
Utility Scripts ............................................................................... 155
A.1
Restarting Sheer DNA Gateway..........................................................................155
A.2
Restarting a Sheer DNA Unit...............................................................................155
A.3
Executing a Command on all Sheer DNA Units ................................................156
B
Golden Source Registry ............................................................. 157
C
Ports Used by Sheer DNA .......................................................... 159
D
Drools Rules Engine................................................................... 161
D.1
D.1.1
Drools Rules Engine Overview ...........................................................................161
Drools Components and Terminology .............................................................161
D.2
Drools and ANA Integration ................................................................................162
D.3
Drools Definitions in ANA ...................................................................................162
D.4
Upgrading Rule Files ...........................................................................................163
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Introducing Sheer DNA
1
Introducing Sheer DNA
About this chapter:
This chapter describes the Sheer™ Dynamic Network Abstraction (DNA)
platform and architecture. In addition, it provides a brief explanation of the
terms used throughout this guide. The Sheer DNA Manage maintenance
application is part of an overall Sheer solution; therefore, in order to better
understand the Sheer DNA Manage environment, a brief overview of Sheer
DNA is required.
The Sheer Solution, page 1, provides an overview of the Sheer DNA, its
platform architecture and functional blocks.
Sheer DNA Components, page 4, describes the Sheer DNA system’s key
components.
Sheer DNA Manage Control Functionality, page 6, describes how Sheer
DNA Manage serves as a tool to manage the Sheer DNA, which enables the
addition, removal and modification of Sheer DNA information.
Additional Concepts and Terms, page 7, explains any additional terms used
within the Sheer DNA Manage application and this guide.
Terminology and Conventions, page 11, describes the conventions used in
the Sheer DNA Administrator’s Guide. In addition, it provides a guide to
related documentation.
1.1
The Sheer Solution
Sheer Dynamic Network Abstraction (DNA) is a carrier class network
management platform, designed to serve as an active mediation layer
between the operation and the network layers. Sheer DNA provides a rich set
of GUI easy to use applications as well as well-defined, APIs for Operation
Support Systems, enabling carriers and service providers to efficiently
respond to the constant market demand for new, reliable and more
sophisticated services, while hiding the complexity of large, multi-vendor,
multi-technology networks.
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Sheer DNA provides solutions for diverse network environments and
applications. It offers an integrated network and service auto-discovery for
network modeling, intelligent fault analysis and a highly flexible network
configuration and activation engine. This enables fully correlated
management of global scale networks supporting millions of subscribers and
customers.
Sheer DNA is a network management solution that provides a fully
integrated service-oriented solution offering:
•
Multi-vendor, hybrid device support
•
Multi-Technology (IP, VPN, MPLS, Ethernet, ATM, DSL)
•
Multi-function (Network discovery, Fault, Activation and Configuration)
•
Vertical integration with multiple OSS/BSS applications
Based on a patented innovative architecture of Distributed Autonomous
VNEs, Sheer DNA was designed from day one to enable integrated
management, for hybrid network environments, while being extremely
scalable in supporting network growth and evolution.
The Sheer DNA introduces key functional highlights such as:
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•
Network (Horizontal) Integration: supporting NEs from multiple
vendors, across multiple technologies, forming a unified, end-to-end
synthesis of the network
•
Network and Service Discovery, Real-time Inventory and Topology:
discovery of network inventory, services and multi-layer connectivity to
form an accurate, up-to-date network information model
•
Network Fault Intelligence: using the auto-discovered network model
for fault correlation and root cause analysis
•
Service Impact: the service impact analysis of various network faults
showing affected VPNs and sites
•
Activation and Configuration: a flexible, high-performance activation
engine that supports virtually any device configuration required
•
Service Verification: real-time verification of configuration health and
consistency
•
Service Path Analysis: dynamic isolation and tracing of service paths,
end-to-end across technologies and network layers
•
GUI Client Applications: a powerful set of user applications for
Assurance, Fulfillment and Performance management
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Introducing Sheer DNA
•
OSS/BSS (Vertical) Integration: open, flexible northbound adaptation
framework to OSS/BSS applications, in a wide variety of APIs, protocols
and information models
•
Scalability: a fully distributed solution implementing parallel processing
that inherits the scaling properties of the network by creating a virtual
model of it. Adding more Autonomous VNEs and/or more DNA Units
easily supports network growth.
The Sheer™ DNA platform architectural diagram and functional blocks are
displayed below.
Figure 1: Sheer DNA Architecture
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1.2
Sheer DNA Components
The Sheer DNA system is comprised of several key components, as
described in the sections that follow.
1.2.1
Autonomous VNE
The Autonomous VNEs (Virtual Network Elements) are software entities
that run as a completely autonomous process within the Sheer DNA Units.
Each VNE is assigned to manage a single Network Element (NE) instance
using whatever southbound management interfaces the NE implements (e.g.
SNMP or Telnet). The Autonomous VNEs are the entities that maintain a live
model of each NE and of the entire network.
As the VNE loads, it starts investigating the NE and automatically builds a
live model of the NE, including its physical and logical inventory, its
configuration and its status. Following the device investigation, the VNEs
begin to negotiate with peering VNEs, which represent the peering NEs
determining the connectivity and topology at different layers. This model of
the network topology, device state and device inventory is constantly being
updated by the VNEs, which track every change that occurs in the NE or in
the network.
Messaging between VNEs is used for running different end-to-end flows, in order
to provide information for root cause and impact analysis, service path tracing and
more.
1.2.2
The Sheer DNA Servers
Sheer DNA uses two distinct server types, each performing different activities:
•
Sheer DNA Gateway
•
Sheer DNA Unit
Sheer DNA Gateway
The Sheer DNA Gateway serves as the gateway through which all clients,
including any OSS/BSS applications as well as the Sheer DNA clients can
access the system. The gateway is an extended Sheer DNA Unit. It enforces
access control and security for all connections and manages client sessions.
In addition it functions as a repository for storing configuration, network and
system events and alarms.
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Cisco Systems, Inc.
Introducing Sheer DNA
Another important function of the Sheer DNA Gateway is to map network
resources to the business context. This enables Sheer DNA to contain
information that is not directly contained in the network (such as VPNs and
Subscribers) and display it to northbound applications.
Sheer DNA Unit
The main purpose of the Sheer DNA Units is to host the Autonomous VNEs.
The Sheer DNA Units are interconnected to form a fabric of VNEs that can
inter-communicate with other VNEs regardless of which unit they are
running on. Each Sheer DNA Unit can host thousands of Autonomous VNE
processes (depending on the server system size). The Sheer DNA Units also
allow for optimal VNE distribution, ensuring geographic proximity between
the VNE and its managed NE.
The clustered N+m high availability mechanism within the Sheer DNA
Fabric is designed to handle the failure of a Sheer DNA Unit. Sheer DNA
Unit availability is established in the Gateway, running a Protection Manager
process, which continuously monitors all the Sheer DNA Units in the
network. Once the Protection Manager detects a Sheer DNA Unit that is
malfunctioning, it automatically signals one of the m servers in its cluster to
load the configuration of the faulty unit (from the system Registry), taking
over all its managed Network Elements. The switchover to the redundant
standby Sheer DNA Unit does not result in any loss of information in the
system, as all of the information is auto-discovered from the network, and no
persistent storage synchronization is required. When a Sheer DNA Unit is
configured it can be designated as being an active or standby unit.
For more information about high availability, refer to the Cisco Active
Network Abstraction High Availability User’s Guide.
1.2.3
Sheer DNA Clients
Sheer provides a comprehensive suite of GUI applications to manage the
network using the Sheer DNA platform.
•
Sheer NetworkVision: The main GUI application of Sheer DNA, used to
visualize every management function supported by the system. For more
information, refer to the Cisco Active Network Abstraction NetworkVision
User’s Guide.
•
Sheer EventVision: A tool for viewing all historical events detected by
the Sheer DNA system. For more information, refer to the Cisco Active
Network Abstraction EventVision User’s Guide.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
•
Sheer DNA Manage: A system administration and configuration tool for
managing the entire Sheer DNA platform, as described below.
•
Sheer Registry Editor: A tool used for viewing and configuring the
Sheer Registry.
The Sheer DNA Clients support automatic client updates from the Sheer
DNA Gateway using Web Start. When connecting with a Sheer DNA
Gateway application, the system verifies that the client version is the latest
available and if an upgrade is required, the system automatically updates the
Sheer Clients from the Sheer DNA Gateway.
1.3
Sheer DNA Manage Control Functionality
Sheer DNA includes extensive system administration functions for simple
system control. Sheer DNA Manage is the GUI tool used for performing
various system administration activities. It provides an interface to perform
the following:
Page 6
•
Sheer DNA Units: Adding and removing Units.
•
Autonomous Virtual Machines (AVMs) and Virtual Network
Elements (VNEs): Adding and removing AVMs and VNEs for the
different Sheer DNA Units. Starting and stopping VNEs, and setting
polling information per VNE.
•
Global Settings:
•
Clients Licenses: Installing and managing Sheer DNA Client
licenses
•
DB Segments: Viewing the storage allocated for all of the database
segments
•
Messages of the Day: Generating a message of the day (service
disclaimer)
•
Polling Groups: Customizing protection groups
•
Protection Groups: Setting up scopes of devices and system users
•
Topology: Managing static and persistent topology links.
•
Workflow Engine: Enables the administrator to manage workflow
templates and running workflows in runtime.
•
Scopes: Enables the administrator to group a collection of managed
Network Elements together in order to enable the user to view and/or
manage the Network Elements based on the user’s role.
•
Users: Enables the administrator to define and manage user accounts.
Cisco Systems, Inc.
Introducing Sheer DNA
1.4
Additional Concepts and Terms
The sections below include additional concepts and terms used in the Sheer
DNA Manage application and throughout this guide.
AVM
The Sheer DNA Units are divided into AVMs (Autonomous Virtual
Machines). These AVMs are Java processes that provide the necessary
distribution support platform for executing and monitoring multiple VNEs.
AVMs and VNEs should reside on a Sheer DNA Unit (as a common
configuration) but they can also reside on a Sheer DNA Gateway.
There are some types of AVMs that run on the server which do not run
VNEs. These AVMs have reserved ID numbers, namely, AVM 0-100 and these
cannot be used. In addition, there are other reserved AVM ID numbers. The
following AVMs have special roles assigned to them, namely:
•
AVM 0 (the switch AVM)
•
AVM 11 (the Gateway)
•
AVM 66 (the workflows AVM)
•
AVM 99 (the management AVM)
•
AVM 100 (the trap management AVM)
Device/Network Element
A network component existing in the network, for example, the devices
displayed in Sheer DNA and in Sheer NetworkVision.
Element Management
The base configuration for the creation of the managed element. Sheer DNA
Manage enables the user to create VNEs, for example, by entering the IP
address, SNMP and polling rate information and so on. This is called
Element Management.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
License
Sheer DNA Client applications and BQL connectivity is based on installed
license files. Sheer DNA Manage enables the administrator to control and
monitor the number of Sheer DNA Client and BQL connections over a
limited or unlimited period of time based on the client licenses installed. Two
types of licenses are supported, namely, fixed (the number of installed users
are identified by user names or IP addresses or both) or floating (the number
of installed users operating concurrently).
Managed Element
After Sheer DNA Manage installs and runs the process, samples the device
and collects the data a VNE (Managed Element) is created. The VNE
includes logical inventory (tables, for example, forwarding tables) and
physical inventory (for example, modules and ports), and this Managed
Element can be accessed using Sheer NetworkVision.
Network Element Components
Component(s) of a Network Element (NE), such as port(s), blade(s),
context(s) and so on.
Permission
The user’s ability to perform certain tasks. There are two types of
permissions, namely, default and NE related.
•
Default: The default permission only applies to the activities that are
related to GUI functionality, not the activities related to Network
Elements. For example, a user with the default permission Viewer can
view maps and the Device List. For more information, refer to page 136.
•
Network Element: The NE related permission enables the administrator
to group a collection of managed Network Elements together (in Sheer
DNA Manage) in order to enable the user to view and/or manage the NEs
based on the user’s role or permission. After the user is allocated a scope
(list of Network Elements) and a role, the user can then perform various
activities on the Network Elements, for example, manage alarms in Sheer
NetworkVision. For more information, refer to page 135.
Polling Group
A polling group is defined as a group of polling rates that can be specified for
a device. For more information, refer to page 114.
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Introducing Sheer DNA
Protection Group
A Protection Group is a cluster to which Units and Standby Units are related.
In case of Unit failover then the Redundant Unit will be taken from the same
Protection Group.
Redundant Unit
The Sheer DNA Unit comes with built-in redundancy for maximum up time
and automatic switching. A threshold configurable watchdog constantly
monitors the Sheer DNA Units and Sheer DNA Gateway and can make an
automatic or manual (operator approved) switch over when there is no
response from the monitored entity. The system is always up-to-date via real
time investigation of the network. The redundancy mechanism ensures
synchronization of the active and backup Sheer DNA units. Once activated,
the standby Sheer DNA node is immediately synchronized with the network.
Roles
Sheer DNA implements a security engine that combines a role-based security
mechanism that is applied on scopes of Network Elements granted per user.
The system supports user accounts creation, multiple Network Element scope
definition and a set of five pre-defined roles for security and access control to
allow different system functions:
•
Administrator: Manage the system configuration and security.
•
Configurator: Activate services, and configure the network.
•
Operator Plus: Able to fully control alarm life cycle and create maps.
•
Operator: Configure business tags and perform most day-to-day
operations.
•
Viewer: Read only access to the network and to non-privileged system
functions.
Roles can be granted per scope or at an application level (default permission),
namely, all the activities that are related to GUI functionality, not the
activities related to devices. The default permission includes:
•
Application login.
•
Manage alarms in Sheer NetworkVision.
•
Manage maps: Creating, deleting, and opening.
•
Map manipulation: Arrange map, including, aggregations, adding NEs,
NEs placement in map, map background and so on.
•
Business tag management.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
Scopes
A scope is a named collection of managed Network Elements that have been
grouped together in order to allow a user to view and/or manage the Network
Elements provided a given role. Grouping can be based on geographical
location, Network Element type (such as DSLAM, router, SW, etc.), Network
Element category (such as access, core, etc.) or any other division according
to the network administrator’s requirements.
Using NetworkVision, a user that has been assigned a scope can view and/or
manage the NEs within this scope according to the role assigned to the user
as per the scope. The user cannot view any information regarding NEs that
are outside the user’s scope, including basic properties, inventory, and
alarms.
Static Link
A static link is a physical link that is not automatically discovered by the
system. The user manually creates the static link between Network Elements
by selecting the two end ports from the NE’s physical inventory.
Transport Link
A transport link is a logical link used for communication between the units
and for transferring information.
Users
In order for a user to work with Sheer DNA the following requirements must
be met:
•
The user must have a valid license installed.
•
The user must have a defined Sheer DNA user account.
•
The user must have an assigned permission.
For more information about users, refer to Chapter 10, Managing Sheer DNA
Security.
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Introducing Sheer DNA
Workflow
A workflow consists of several tasks grouped together and arranged in a
flowchart. All workflows are stored on the Sheer DNA Gateway. After a
workflow is deployed, it is accessible using Sheer DNA Manage in order to
view properties and status. Deployed workflow templates can be invoked via
the Sheer DNA API using BQL. In addition, the user can view a history of
the invoked workflows using Sheer EventVision. For more information, refer
to this guide and the Cisco Active Network Abstraction Workflow User’s
Guide.
1.5
Terminology and Conventions
This Sheer DNA Administrator’s Guide uses the following conventions:
Convention
Description
^ or Ctrl
The ^ and Ctrl symbols represent the Control key. For
example, the key combination ^D or Ctrl-D means hold
down the Control key while pressing the D key. Keys are
indicated in capital letters but are not case sensitive.
Command syntax descriptions use the following conventions:
Convention
Description
boldface
Boldface text indicates commands and keywords that the
user enters literally as shown.
italics
Italic text indicates arguments for which the user supplies
values.
[x]
Square brackets enclose an optional element (keyword or
argument).
|
A vertical line indicates a choice within an optional or
required set of keywords or arguments.
[x | y]
Square brackets enclosing keywords or arguments
separated by a vertical line indicate an optional choice.
{x | y}
Braces enclosing keywords or arguments separated by a
vertical line indicate a required choice.
Nested sets of square brackets or braces indicate optional or required choices
within optional or required elements. For example:
Convention
Description
[x {y | z}]
Braces and a vertical line within square brackets indicate
a required choice within an optional element.
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Examples use the following conventions:
Convention
Description
screen
Examples of information displayed on the screen are set
in Courier New font.
Boldface
screen
Examples of text that the user must enter are set in
Courier New bold font.
< >
Angle brackets enclose text that is not printed to the
screen, such as passwords.
[
]
Square brackets enclose default responses to system
prompts.
{
}
Curly brackets group mandatory parameters together
where there are options.
Related Documentation
For more detailed information, refer to the following publications:
Page 12
•
•
Cisco Active Network Abstraction NetworkVision User’s Guide
Cisco Active Network Abstraction EventVision User’s Guide
•
•
•
•
•
Cisco Active Network Abstraction Servers Installation Guide
Cisco Active Network Abstraction Client Installation Guide
Cisco Active Network Abstraction High Availability User’s Guide
Cisco Active Network Abstraction Error Messages
Cisco Active Network Abstraction Workflow User’s Guide
Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
2
Getting Started with Sheer DNA
Manage
About this chapter:
This chapter describes the Sheer DNA Manage working environment and
how to access Sheer DNA Manage tools and commands. It also provides
instructions for launching and overviews operating the Sheer DNA Manage
application-using menu and toolbar options.
The Sheer DNA Manage window provides access to all of Sheer DNA
Manage’s functionality.
Starting Sheer DNA Manage, below, describes how to open the Sheer DNA
Manage window.
The Sheer DNA Manage Window, page 15, briefly describes the Sheer
DNA Manage window, including the Tree pane and Workspace.
Sheer DNA Manage Window, Menus and Toolbar, page 19, provides a
detailed description of the Sheer DNA information displayed in the Sheer
DNA Manage window, the menus, and toolbars.
Logging Out, page 56, describes how to log out of Sheer DNA Manage.
2.1
Starting Sheer DNA Manage
Sheer DNA Manage is password protected to ensure security, and is only
available to users with Administrator privileges. Before you start working
with Sheer DNA Manage, make sure you know the user name, password and
the Sheer DNA Gateway IP address or host name that you require.
Note: If a user does not login to the Sheer DNA Manage, NetworkVision or
EventVision applications during a specified period of time (the default is one
month) the user’s account will be locked automatically. The default period
can be changed in the Sheer DNA Registry. The period of time is measured
from the time the user last logged out of any of the Sheer DNA Client
applications. For information about unlocking a user, refer to page 147.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
To start Sheer DNA Manage
1.
From the Start menu, select the Programs folder, then Sheer
DNA/Sheer DNA Manage. The Sheer DNA Manage - Login dialog box
is displayed.
Note: It is recommended that the administrator change the user name and
login password after logging in for the first time.
The last four Sheer DNA Gateways to which the user logged in
successfully are displayed in the Host dropdown list. The list is
displayed in chronological order with the most recent Sheer DNA
Gateway displayed at the top of the list.
2.
Enter the required Sheer DNA Gateway’s information in the Host field,
as an IP address or host name,
or
Select a Sheer DNA Gateway from the Host dropdown list.
Note: The Sheer DNA Gateway IP address or host name that was used
when you last logged in is automatically displayed at the top of the Host
dropdown list.
Note: Make sure that you use the leading IP address (the IP on which the
Sheer DNA Gateway was configured) when logging in to the system.
3.
Click OK. The Sheer DNA Manage window is displayed. The user name
and host information is displayed in the Sheer DNA Manage window
heading.
Note: Some of the Workspaces in the Sheer DNA Manage window may
appear empty when the application is opened for the first time.
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Getting Started with Sheer DNA Manage
2.2
The Sheer DNA Manage Window
The Sheer DNA Manage window is displayed below.
Menu bar
Toolbar
Tree pane
Shortcut
menu
Status bar
Workspace
The Sheer DNA Manage window is divided into areas or panes, as follows:
•
The Tree pane, as described on page 15.
•
The Workspace, as described on page 18.
•
The Status Bar, displays the memory usage of the application process
and connection status.
Dragging the borders of the Sheer DNA Manage window adjusts the size of
each area. The two areas are correlated; this means that selecting an option in
the Tree pane affects the information displayed in the Workspace.
2.2.1
Sheer DNA Manage Tree Pane
The Tree pane displays a tree-and-branch representation of the Sheer DNA
Manage folders. The branches can be expanded and collapsed in order to
display and hide information as needed. An example of the Tree pane is
displayed above.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
Sheer DNA Manage enables the user to manage and maintain information in
the Sheer DNA using the following branches in the Sheer DNA Manage
window:
•
DNA Servers: Enables the administrator to manage information relating
to the Sheer DNA Gateway, and Sheer DNA Units, including the AVMs
and the VNEs in the Sheer DNA. This includes viewing a list of Sheer
DNA Units, adding, editing and removing AVMs and VNEs, viewing
VNE and AVM properties, starting and stopping AVMs and VNEs, and
moving VNEs to maintenance mode. The DNA Servers branch includes
the DNA Gateway and AVM sub-branches. For more information about
the DNA Servers branch, refer to page 20.
•
Global Settings: The Global Settings branch includes the Client
Licenses, DB segments, Message of the Day, Polling Groups and
Protection Groups sub-branches. The Global Settings branch enables the
administrator to:
•
Install and manage Sheer DNA Client licenses.
•
Enables the administrator to view a table describing the storage
allocated for all the database segments. For more information about
the DB Segments branch, refer to page 37.
•
Manage the service disclaimer (message of the day). For more
information about the Service Disclaimer Message of the Day, refer
to page 113.
•
Manage the polling groups to be used by a group of devices. The
administrator can define a few polling groups, and the devices will
then be polled according to the polling group. Every polling group
has a different set of polling intervals. For more information about the
Polling Groups branch, refer to page 114.
•
Manage and change the default setup of the Sheer DNA Units by
customizing protection groups (clusters) and then assigning Sheer
DNA Units to these protection groups. For more information about
the Protection Groups branch, refer to page 121.
For more information about the Global Settings branch, refer to page 33.
Page 16
•
Scopes: Enables the administrator to group a collection of managed
Network Elements together in order to enable the user to view and/or
manage the Network Elements based on the user’s role. For more
information about the Scopes branch, refer to page 44.
•
Topology: Enables the administrator to manage topology-related
parameters, namely, the static links between the devices. For more
information about the Topology branch, refer to page 47.
Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
•
Users: Enables the administrator to define and manage user accounts.
For more information about the Users branch, refer to page 49.
•
Workflow Engine: Enables the administrator to manage workflow
templates and running workflows in runtime. For more information
about the Workflow Engine branch, refer to page 52.
Clicking on a branch in the Tree pane enables the user to view information
relating to the selected branch in the Workspace. Right-clicking on a branch
in the Tree pane, opens a shortcut menu enabling the user to perform various
functions.
The following icons are displayed in the Sheer DNA Manage window:
Icon Description
DNA Servers branch
Sheer DNA Gateway
Sheer DNA Units
Sheer DNA Redundant Unit
AVMs (VNE)
Global Settings branch
DB Segments
Client Licenses
Message of the Day
Polling Groups
Protection Groups
Scopes
Topology
Users
Workflow Engine
Templates
Workflows
Note: The menus and toolbar displayed in the Sheer DNA Manage window
are context sensitive; the options vary depending on your selection in the
Tree pane and the Workspace.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
2.2.2
Sheer DNA Manage Window Workspace
The Workspace is displayed on the right side of the Sheer DNA Manage
window and enables the user to view Sheer DNA Manage information
according to the branch selected in the Tree pane. The information displayed
varies according to the branch selected in the Tree pane.
Note: Multiple rows can be selected using the standard Microsoft® Windows
selection keys when a table is displayed in the Workspace.
The Selection field displayed at the bottom of the Workspace displays the
number of selected rows and the total number of rows in the table, for
example, 6/6 Selected (refer to page 17).
In addition, it displays the location of the selected row(s) in the table, for
example, Line 2.
Table Toolbar
Whenever a table forms part of the Workspace, the same toolbar is displayed,
no matter which branch is selected in the Tree pane.
The table toolbar contains the following tools:
Export to CSV: Enables the user to save the current Sheer DNA
Manage working environment as a file in the Sheer DNA. For more
information, refer to page 68.
Sort Table Values: Enables you to sort the information displayed in
the table, for example, according to status or IP address.
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Getting Started with Sheer DNA Manage
Filter: Enables the user to define a filter on the information
displayed in the table of the Workspace using the Filter dialog box.
For more information, refer to page 63.
Note: When a filter is applied the Set Selection Filter button and the
Rewind All option under the Previous Selection Filter buttons is
activated.
Set Selection Filter: Applies filters to the selected line or lines.
Note: When the user selects one or multiple lines in a table, the
Previous Selection Filter button is activated.
Previous Selection Filter: Enables the user to undo the last applied
filter selection.
Rewind All option: Enables the user to undo all previous applied
filter selections, and returns all the originally displayed data to the
table displayed in the Workspace.
Opens the online Sheer DNA Manage Help.
For operating instructions on selecting lines and applying filters, refer to the
sections Filtering Information and Setting Selection Filters in Chapter 4,
General DNA Manage Tables.
The Find field enables the user to search for information relating to the
branch selected in the Tree pane. For more information about searching for
information, refer to page 63.
2.3
Sheer DNA Manage Window, Menus and Toolbar
This section provides a detailed description of the Sheer DNA information
displayed in the Sheer DNA Manage window depending on the branch
selected, the menus, and toolbars.
For specific information about each branch, refer to:
•
DNA Servers, page 20.
•
DNA Server Entities, including the DNA Gateway and DNA Units,
page 24.
•
AVMs, page 29.
•
Global Settings, page 33.
•
Scopes, page 44.
•
Topology, page 47.
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2.3.1
•
Users, page 49.
•
Workflow Engine, page 52.
DNA Servers Branch
Sheer DNA Manage maintains a list of all of the DNA Servers defined in the
system. The DNA Servers branch enables the user to add and remove DNA
Unit Servers.
The user can expand this branch to view a list of the Sheer DNA Units, Sheer
DNA Gateway and AVMs. Each Sheer DNA Gateway, Sheer DNA Unit and
AVM has its own sub-branch. The DNA Servers branch (and associated subbranches) enables the user to manage information relating to the AVMs and
VNEs contained in the Sheer DNA Units.
Note: AVMs and VNEs should reside on a Sheer DNA Unit (as a common
configuration) but they can also reside on a Sheer DNA Gateway.
The DNA Servers branch is displayed below.
The DNA Servers branch contains the following sub-branches:
Page 20
•
DNA Gateway and DNA Unit, namely, DNA Server Entities, refer to
page 24.
•
AVMs, refer to page 29.
Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
For more information about DNA Server menu and toolbar options:
•
Menu options, refer to page 21.
•
Toolbar options, refer to page 23.
The Workspace area of the DNA Servers branch enables the user to view a
list of all of the Sheer DNA Gateways and Sheer DNA Units and their status.
Clicking on a column heading in the table in the Workspace sorts the Sheer
DNA Units in ascending or descending order according to the selected
column.
Note: Any changes that are made to the DNA Servers branch are saved
automatically and registered immediately in the Sheer DNA.
The following columns are displayed in the table in the Workspace:
•
IP Address: The IP address of the Sheer DNA Units, and Sheer DNA
Gateways as defined in Sheer DNA Manage.
•
Status: The status of the Sheer DNA Unit, as follows:
•
Up: The Sheer DNA Unit is up.
•
Down: The Sheer DNA Unit is down.
•
Unreachable: The Sheer DNA Unit cannot be reached.
•
Up Since: The date and time when the DNA Unit was last loaded.
•
Physical Memory: The physical memory of the Sheer DNA Unit.
•
Used Memory: The memory being used by the Sheer DNA Unit.
•
Allocated Memory: The amount of memory allocated to the Sheer DNA
Unit. Allocated memory is the sum of all of the memory settings for all
of the AVMs.
•
Protection Group: The protection group to which the Sheer DNA Unit
has been allocated.
•
AVM HA: The Sheer DNA Unit is enabled for high availability (true)
or disabled (false). By default this option is enabled for high availability.
For more information about the DNA Servers branch, refer to Chapter 5,
Managing Sheer DNA Units.
Menus
This section provides a description of each option available in the menus
when the DNA Servers branch is selected. The following menus are available:
•
File menu, as described in the next section.
•
Tools menu, as described on page 22.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 23.
•
Workspace shortcut menu, as described on page 23.
File Menu – DNA Servers Branch
The File menu is displayed below.
New DNA Unit
Creates a new DNA Unit.
Exit
Exits Sheer DNA Manage. For more information, refer to page 56.
Tools Menu – DNA Servers Branch
The Tools menu is displayed below.
Change User Password
Enables the user to change the password used, when logging in to the Sheer
DNA Client application suite. The change will take effect the next time that
the user logs in to the application. The Tools menu option is the same
throughout the application.
Help Menu
The Help menu is displayed below.
The Help menu enables the user to display application information, for
example, the version number. The Help menu options are the same
throughout the application.
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Getting Started with Sheer DNA Manage
Tree Pane Menu – DNA Servers Branch
When the user right-clicks on the DNA Servers branch the following menu is
displayed:
New DNA Unit
The user can add a new Sheer DNA Unit to the Sheer DNA Servers.
Workspace Shortcut Menu – DNA Servers Branch
When the user right-clicks on a Sheer DNA Unit or DNA Gateway in the
table in the Workspace the following menu is displayed:
New AVM
Adds an AVM to the selected Sheer DNA Unit. For more information, refer
to page 80.
Properties
Displays the properties of the selected Sheer DNA Unit in a Properties dialog
box. For more information, refer to page 73.
Switch
This option is available when high availability is enabled and is only
available for Sheer DNA Units. Manually switch to the standby Sheer DNA
Unit. For more information, refer to the Cisco Active Network Abstraction
High Availability User’s Guide.
Delete
Deletes the selected Sheer DNA Unit. For more information, refer to page 75.
DNA Manage Toolbar – DNA Servers Branch
The DNA Servers branch contains the following tools (available tool bar
options):
Adds a new Sheer DNA Unit to the Sheer DNA Server.
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Search for a Sheer DNA Unit/AVM/VNE amongst all the Sheer
DNA Servers.
When a Sheer DNA Unit is selected in the table of the Workspace the
following tools are displayed in the toolbar:
Creates a new AVM in the selected Sheer DNA Unit or
Gateway.
Displays the properties of the selected Sheer DNA Unit.
Deletes the selected Sheer DNA Unit.
Search for a Sheer DNA Unit/AVM/VNE amongst all the Sheer
DNA Servers.
For more information about the DNA Servers branch, refer to Chapter 5,
Managing Sheer DNA Units.
2.3.2
DNA Server Entities Branch
The DNA Server Entities sub-branch includes the DNA Gateway and DNA
Unit sub-branches. All the options described here refer to both sub-branches.
The DNA Server Entities sub-branch enables the user to manage information
relating to the AVMs and VNEs on a selected Sheer DNA Unit. These
include:
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•
Adding, editing and removing an AVM
•
Switching manually to the standby Sheer DNA Unit
•
Viewing AVM properties
•
Moving AVMs
•
Starting and stopping AVMs and VNEs
•
Adding VNEs
Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
An example of the Sheer DNA Manage window when a DNA Servers Entity
sub-branch is selected is displayed below.
Each row in the table in the Workspace enables the user to view the status of
an AVM. The AVMs can be sorted in ascending or descending order by
clicking on the column heading in the table.
Note: Any changes that are made to the DNA Servers Entity sub-branch are
saved automatically and registered immediately in the Sheer DNA.
The following columns are displayed in the Workspace table for the AVMs
that are listed or running under the server entity:
•
ID: The name of the AVM as defined in Sheer DNA and unique to the
AVM, for example, AVM 18.
•
Status: The status of the AVM, as follows:
•
Starting Up: When an AVM is started.
•
Up: The AVM is up.
•
Shutting Down When an AVM is stopped.
•
Down: The AVM is down.
•
Unreachable: The AVM cannot be reached.
•
Up Since: The date and time that the Sheer DNA Unit was last started.
•
Max Memory: The maximum allocated memory size as defined when
the AVM was created in Sheer DNA Manage. The default value is
256 MB.
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•
Key: The key of the AVM, which is unique to the system. By default the
key is displayed as “AVM + ID + timestamp”.
For more information about DNA Server specific menu and toolbar options:
•
Menu options, refer to page 26.
•
Toolbar options, refer to page 28.
DNA Server Entities Menus
This section provides a description of each option available in the menus
when the DNA Server sub-branch is selected. The following menus are
available:
•
File menu, as described on page 26.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 27.
•
Workspace menu, as described on page 27.
File Menu – DNA Servers Entities Branch
The File menu is displayed below.
New AVM
Adds an AVM to the selected Sheer DNA Unit. For more information, refer
to page 80.
Properties
Displays the DNA Unit Properties dialog box. This dialog box lists the
properties of the selected Sheer DNA Unit and indicates its status. For more
information, refer to page 73.
Exit
Exits Sheer DNA Manage.
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Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
Tree Pane Shortcut Menu – DNA Server Entities Branch
When the user right-clicks on the DNA Server Entities sub-branch in the Tree
pane the following shortcut menu is displayed:
New AVM
Adds an AVM to the selected Sheer DNA Unit.
Properties
Displays the properties of the selected Sheer DNA Unit.
Switch
This option is available when high availability is enabled and is only
available for Sheer DNA Units. Manually switch to the standby Sheer DNA
Unit. For more information, refer to the Cisco Active Network Abstraction
High Availability User’s Guide.
Delete
Deletes the selected Sheer DNA Unit.
Workspace Shortcut Menu – DNA Servers Entity Branch
When the user right-clicks an AVM in the Tree pane or in the table in the
Workspace the following menu is displayed:
New VNE
Adds a New VNE to the chosen AVM.
Note: A new VNE cannot be added to the reserved AVMs 0-100.
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Actions
Enables the user to start or stop an AVM.
Delete
Deletes an AVM.
Move AVM
Move an entire AVM between DNA Units.
Properties
Displays the properties of the selected AVM and its status in the General tab
of a dialog box.
DNA Manage Toolbar – DNA Server Entities Branch
When the DNA Server Entities sub-branch is selected in the Tree pane the
following tools are displayed in the toolbar:
Creates a new AVM in the selected Sheer DNA Unit or
Gateway.
Displays the Sheer DNA Server properties and status.
Deletes the selected Sheer DNA Unit.
Search for a Sheer DNA Unit/AVM/VNE amongst all the
Sheer DNA Servers.
When an AVM is selected in the table in the Workspace the following tools
are displayed in the toolbar:
Creates a new VNE in the selected AVM.
Displays the AVM properties and status. For more
information, refer to page 82.
Deletes the selected AVM.
Starts the selected AVM. For more information, refer to
page 85.
Stops the selected AVM. For more information, refer to
page 85.
Search for a Sheer DNA Unit/AVM/VNE amongst all the Sheer
DNA Servers.
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Getting Started with Sheer DNA Manage
For more information on the DNA Servers Entity sub-branch, refer to
Chapter 6, Managing AVMs and VNEs.
2.3.3
AVM Branch
The AVM sub-branch enables the user to manage information relating to the
VNEs in a selected AVM. This includes:
•
Adding, editing and removing a VNE
•
Viewing VNE or AVM properties
•
Deleting an AVM
•
Moving AVMs and/or VNEs
•
Starting and stopping VNEs or AVMs
•
Moving VNEs to maintenance mode
An example of the Sheer DNA Manage window when the AVM sub-branch is
selected is displayed below.
When the user selects the AVM sub-branch the workspace displays the
properties of the AVM and a table with the list of VNEs.
Note: No VNEs are displayed when a special AVM (for example, AVM 66)
that belongs to the Gateway is selected.
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The following columns are displayed in the Workspace table:
•
Key: The unique key of the VNE.
•
IP Address: The IP address of the device as defined in Sheer DNA
Manage.
•
Status: The status of the VNE, as follows:
•
Starting Up: When a VNE is started.
•
Up: The VNE is up.
•
Shutting Down When a VNE is stopped.
•
Down: The VNE is down.
•
Unreachable: Sheer DNA failed to access the VNE.
•
Maintenance: Indicates whether the VNE is or is not in maintenance
mode, namely, true or false.
•
Up Since: The date and time that the VNE was last started.
•
SNMP: Indicates whether this option is enabled or disabled on the VNE,
namely, true or false.
•
Telnet: Indicates whether this option is enabled or disabled on the VNE,
namely, true or false.
•
Element Class: Detects the VNE category, namely, Auto Detect, Generic
SNMP, Cloud or ICMP.
•
Element Type: The device type (manufacturer name), for example,
Cisco 7204.
•
Polling Group: The name of the customized polling group or it is blank
if it is an instance.
For more information about VNEs, refer to Chapter 6, Managing AVMs and
VNEs the section on VNEs Overview.
For more information about AVM menu and toolbar options:
•
Menu options, refer to page 30.
•
Toolbar options, refer to page 33.
AVM Menus
This section provides a description of each option available in the menus
when the AVM sub-branch is selected. The following menus are available:
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•
File menu, as described below.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
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Getting Started with Sheer DNA Manage
•
Tree Pane shortcut menu, as described on page 31.
•
Workspace shortcut menu, as described on page 32.
File Menu – AVM Branch
The File menu is displayed below.
New VNE
Adds a VNE to the selected AVM.
Note: A new VNE cannot be added to the reserved AVMs 0-100.
Properties
Displays the properties of the selected AVM and its status.
Exit
Exits Sheer DNA Manage.
Tree Pane Shortcut Menu – AVM Branch
When the user right-clicks on the AVM sub-branch in the Tree pane the
following menu is displayed:
New VNE
Creates a VNE for the selected AVM. For more information, refer to page 80
Note: A new VNE cannot be added to the reserved AVMs 0-100.
Actions
Starts or stops an AVM. For more information, refer to page 85.
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Delete
Deletes an AVM from the Sheer DNA Server.
Note: Reserved AVMs 0-100 cannot be deleted.
Move AVM
Move an entire AVM between DNA Units. For more information, refer to
page 86.
Note: Reserved AVMs 0-100 cannot be moved.
Properties
Displays the properties of the selected AVM.
Workspace Shortcut Menu – AVM Branch
When the user right-clicks on a selected VNE in the table the following
shortcut menu (and sub-menu, when required) options are displayed:
Actions
Enables the user to start, stop or delete a VNE. In addition, the VNE can be
moved to maintenance mode.
Delete
Deletes the selected VNE from an AVM.
Move VNEs
Move a single VNE between AVMs.
Properties
Displays the properties of the selected VNE.
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Getting Started with Sheer DNA Manage
DNA Manage Toolbar – AVM Branch
When the AVM sub-branch is selected in the Tree pane the following tools
are displayed in the toolbar:
Creates a new VNE in the selected AVM.
Displays the properties of the selected AVM.
Deletes the selected AVM.
Starts the selected AVM.
Stops the selected AVM.
Search for a Sheer DNA Unit/AVM/VNE amongst all the Sheer
DNA Servers.
When a VNE is selected in the table in the Workspace the following tools are
displayed in the toolbar:
Creates a new VNE in the selected AVM.
Displays the properties of the selected VNE.
Deletes the selected VNE from an AVM.
Starts the selected VNE.
Moves the selected VNE to maintenance mode.
Stops the selected VNE.
Search for a Sheer DNA Unit/AVM/VNE amongst all the Sheer
DNA Servers.
For more information on the AVM sub-branch, refer to Chapter 6, Managing
AVMs and VNEs.
2.3.4
Global Settings Branch
The Global Settings branch maintains system-wide settings, for example,
polling and protection groups. Any changes that are made to the settings
affect the configuration throughout the entire system.
The Global Settings branch includes the following sub-branches:
•
Client Licenses, refer to page 34
•
DB Segments, refer to page 37
•
Message of the Day, refer to page 38
•
Polling Groups, refer to page 39
•
Protection Groups, refer to page 41
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Client Licenses
The Client Licenses sub-branch enables control and monitoring of the
number of Sheer DNA Client connections over a limited or unlimited period
of time as defined in terms of the client license. The Sheer DNA Manage
window with the Client Licenses sub-branch selected is displayed below.
The following columns are displayed in the Workspace table when the Client
Licenses sub-branch is selected:
•
Expiration Date: Date of the expiration of the license. The license can
be for a limited or unlimited period of time.
•
License Type: The license type, namely:
•
Fixed: The number of installed users are identified by user names or
IP addresses or both. For example, 5 users with the user names a, b,
c, d and e.
or
•
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Floating: The number of installed users operating concurrently
(unspecified). For example, 5 users.
•
License Users: The user names and/or IP addresses of the users.
•
Priority: Available in a future version.
•
User Count: The number of users allowed to operate the Sheer DNA
Client applications, as defined in terms of the license. The exact number
of users is displayed if the number is limited or 0 indicates an unlimited
number of users.
Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
•
Creation Date: The date when the license was implemented.
•
Client Type: The applications to which the user is authorized to connect,
namely, BQL and/or Sheer DNA Client applications.
For more information about:
•
Menus options, refer to page 35.
•
Toolbar options, refer to page 36.
Client Licenses Menus
This section provides a description of each option available in the menus
when the Client Licenses sub-branch is selected. The following menus are
available:
•
File menu, as described below.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 36.
•
Workspace shortcut menu, as described on page 36.
File Menu – Client Licenses Branch
The File menu is displayed below.
New License
Install a new license.
Properties
Displays the properties of the selected license.
Exit
Exits Sheer DNA Manage.
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Tree Pane Menu – Client Licenses Branch
Right clicking on the Client Licenses sub-branch displays the following
menu:
New License
Install a new license.
Workspace Shortcut Menu – Client Licenses Branch
When the user right-clicks in the table in the Workspace the following
shortcut menu is displayed:
Delete
Deletes the selected license.
Properties
Displays the properties of the selected license.
Toolbar – Client Licenses Branch
When the Client Licenses sub-branch is selected in the Tree pane the toolbar
contains the following tools:
Install a new license.
Displays the properties of the selected license.
Deletes the selected license.
For more information about client licenses, refer to page 107.
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Getting Started with Sheer DNA Manage
DB Segments Branch
The DB segments branch in Sheer DNA Manage displays a table describing
the storage allocated for all database segments. An example of the Sheer
DNA Manage window when the DB Segments branch is selected is displayed
below.
The following columns are displayed in the Workspace table when the DB
Segments branch is selected:
• Name: Name of the segment.
• Type: Type of segment, namely, INDEX PARTITION, TABLE
PARTITION, TABLE, CLUSTER, INDEX, ROLLBACK, DEFERRED
ROLLBACK, TEMPORARY, CACHE, LOBSEGMENT and
LOBINDEX
• Tablespace Name: Name of the table space containing the segment.
• Partition Count: Number of partitions.
• Extent Count: Number of extents allocated to the segment where the
data is stored.
• Next Extent Size: Size in bytes of the next extent to be allocated to the
segment.
• Bytes: Size in bytes, of the segment.
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Service Disclaimer Message of the Day
The Message of the Day sub-branch enables the user to define a message
(service disclaimer) that will be displayed when a user logs in to the Sheer
Client applications. An example of the Sheer DNA Manage window when the
Message of the Day sub-branch is selected is displayed below.
The following areas are displayed in the Workspace:
•
Title: The title of the message, which is displayed as the title of the
dialog box. By default the title “Terms of Use” is displayed.
•
Message: A free text message for the user. The message supports HTML
format.
Note: The Abort and Continue buttons are displayed in the message
dialog box by default, so the message must relate to these actions. The
user must accept (Continue) the service disclaimer otherwise the user
will be unable to login.
The following button is displayed in the Workspace:
•
Save: Saves the message so that it is displayed when the user logs in to a
Sheer Client application.
For more information about the Message of the Day branch, refer to
page 113.
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Getting Started with Sheer DNA Manage
Polling Groups
The Polling Groups sub-branch enables the user to manage polling groups,
by categorizing a group of devices to be polled according to pre-set intervals.
The Polling Groups sub-branch is displayed below.
The following columns are displayed in the Workspace table when the
Polling Groups sub-branch is selected:
•
Polling Group: The polling group name defined by the user
•
Description: A description of the polling group.
Note: Any changes that are made to the Polling Groups sub-branch are saved
automatically and registered immediately in the Sheer DNA.
For more information about:
•
Menu options, refer to page 39.
•
Toolbar options, refer to page 41.
Polling Group Menus
This section provides a description of each option available in the menus
when the Polling Groups sub-branch is selected. The following menus are
available:
•
File menu, as described on page 40.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 40.
•
Workspace shortcut menu, as described on page 40.
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File Menu – Polling Groups Branch
The File menu is displayed below.
New Polling Group
Creates a new polling group.
Properties
Displays the properties of the selected polling group.
Exit
Exits Sheer DNA Manage.
Tree Pane Menu – Polling Groups Branch
Right-clicking on the Polling Groups sub-branch displays the following
menu:
New Polling Group
Creates a new polling group.
Workspace Shortcut Menu – Polling Groups Branch
When the user right-clicks in the table in the Workspace the following
shortcut menu, is displayed:
Properties
Displays the properties of the selected polling group.
Delete
Deletes the selected polling group.
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Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
Toolbar – Polling Groups Branch
When the Polling Groups sub-branch is selected in the Tree pane the toolbar
contains the following tools:
Creates a new polling group.
Displays the properties of the selected polling group.
Deletes the selected polling group.
When a polling group is selected in the table in the Workspace, clicking
Properties in the toolbar displays the properties of the polling group in a
Properties dialog box.
For more information about polling groups, refer to page 114.
Protection Groups
By default all the Sheer DNA Units in the Sheer DNA Fabric belong to one
big cluster. The Protection Groups sub-branch enables the administrator to
change the default setup of the Sheer DNA Units by customizing protection
groups (clusters) and then assigning Sheer DNA Units to these protection
groups.
For more information, refer to the Cisco Active Network Abstraction High
Availability User’s Guide.
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The Sheer DNA Manage window with the Protection Groups sub-branch
selected is displayed below.
The following columns are displayed in the Workspace table when the
Protection Groups sub-branch is selected:
•
Name: The protection group name defined by the administrator.
•
Description: A description of the protection group.
For more information about:
•
Menu options, refer to page 43.
•
Toolbar options, refer to page 44.
Protection Group Menus
This section provides a description of each option available in the menus
when the Protection Groups sub-branch is selected. The following menus are
available:
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•
File menu, as described on page 43.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 43.
•
Workspace shortcut menu, as described on page 43.
Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
File Menu – Protection Groups Branch
The File menu is displayed below.
New Protection Group
Creates a new protection group.
Properties
Displays the properties of the selected protection group.
Exit
Exits Sheer DNA Manage.
Tree Pane Menu – Protection Groups Branch
Right clicking on the Protection Groups sub-branch displays the following
shortcut menu:
New Protection Group
Creates a new protection group.
Workspace Shortcut Menu – Protection Group Branch
When the user right-clicks in the table in the Workspace the following
shortcut menu is displayed:
Delete
Deletes the selected protection group.
Properties
Displays the properties of the selected protection group in a Properties dialog
box.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
Toolbar – Protection Groups Branch
When the Protection Groups sub-branch is selected in the Tree pane the
toolbar contains the following tools:
Creates a new protection group.
Displays the properties of the selected protection group.
Deletes the selected protection group.
For more information about protection groups, refer to the Cisco Active
Network Abstraction High Availability User’s Guide.
2.3.5
Scopes Branch
The Scopes branch enables the administrator to group a collection of
managed Network Elements together in order to enable the user to view
and/or manage the Network Elements based on the role granted to the user
for the scope. For more information on the Scopes branch, refer to Chapter 9,
Managing DNA Security.
The Scopes branch is displayed below.
Each row in the table in the Workspace displays the name of a scope as
defined in Sheer DNA Manage.
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Getting Started with Sheer DNA Manage
For more information about:
•
Menu options, refer to following section.
•
Toolbar, refer to page 46.
Note: The menus and toolbar displayed in the Sheer DNA Manage window
are context sensitive; the options vary depending on your selection in the
Tree pane and Workspace.
Scopes Menus
This section provides a description of each option available in the menus
when the Scopes branch is selected. The following menus are available:
•
File menu, as described in the following section.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 45.
•
Workspace shortcut menu, as described on page 46.
File Menu – Scopes Branch
The File menu for the Scopes branch is displayed below.
New Scope
Creates a new scope.
Properties
Displays the properties of the selected scope.
Exit
Exits Sheer DNA Manage. For more information, refer to page 56.
Tree Pane Shortcut Menu – Scopes Branch
When the user right-clicks on the Scopes branch in the Tree pane the
following menu is displayed:
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
New Scope
Creates a new scope.
Workspace Shortcut Menu – Scopes Branch
When the user right-clicks in the table in the Workspace the following
shortcut menu is displayed:
Delete
Deletes the selected scope.
Properties
Displays the properties of the selected scope.
Note: The user cannot delete or edit the All Managed Elements scope in the
table in the Workspace. For more information, refer to the Scopes section on
page 140.
Toolbar – Scopes Branch
When the Scopes branch is selected in the Tree pane the toolbar contains the
following tools:
Creates a new scope. For more information, refer to page 140.
Displays the properties of the selected scope.
Deletes the selected scope.
When a scope is selected in the table in the Workspace, clicking Properties
in the toolbar displays the properties of the selected scope in a Properties
dialog box.
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Getting Started with Sheer DNA Manage
2.3.6
Topology Branch
The Topology branch enables the user to define static links between the
Network Elements in order to supplement or override existing autodiscovered topology. The Sheer DNA Manage window with the Topology
branch selected is displayed below.
The Topology branch displays all of the static links defined in the system
including the A Side and Z Side of the link.
For more information about:
•
Menu options, refer to page 47.
•
Toolbar options, refer to page 49.
Topology Menus
This section provides a description of each option available in the menus
when the Topology branch is selected. The following menus are available:
•
File menu, as described in the following section.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 48.
•
Workspace shortcut menu, as described on page 48.
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File Menu – Topology Branch
The File menu is displayed below.
New Static Link
Creates a new static link.
Properties
This option is unavailable.
Exit
Exits Sheer DNA Manage. For more information, refer to page 56.
Tree Pane Shortcut Menu – Topology Branch
When the user right-clicks on the Topology branch in the Tree pane the
following menu is displayed:
New Static Link
Creates a new static link.
Workspace Shortcut Menu – Topology Branch
When the user right-clicks in the table in the Workspace the following menu
is displayed:
Delete
Deletes the selected static link.
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Cisco Systems, Inc.
Getting Started with Sheer DNA Manage
Toolbar – Topology Branch
The Topology branch contains the following tools:
Opens the New Link dialog box enabling the user to create a link
between two devices. For more information, refer to page 127.
Deletes the selected static link.
For more information about the Topology branch, refer to Chapter 8,
Managing Links.
2.3.7
Users Branch
The Users branch enables the administrator to define and manage user
accounts. For more information about the Users branch, refer to Chapter 10,
Managing Sheer DNA Security.
The Sheer DNA Manage window with the Users branch selected is displayed
below.
Each row in the table in the Workspace displays the user name and a
description of the user.
The following columns are displayed in the Workspace table:
•
User Name: The user name (unique) defined for the current client
station.
•
Description: A description of the user.
•
Default Permission: The default permission of the user, namely, Viewer
to Administrator. For example, a user with the default permission Viewer
can view maps and the Device List.
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Note: The default permission only applies at an application level,
namely, all the activities that are related to GUI functionality, not the
activities related to devices. For more information, refer to Chapter 10,
Managing Sheer DNA Security.
•
Last Login: The date and time that the user last logged in.
For more information about:
•
Menu options, refer to the following section.
•
Toolbar options, refer to page 51.
Note: The menus and toolbar displayed in the Sheer DNA Manage window
are context sensitive; the options vary depending on your selection in the
Tree pane and Workspace.
Users Menus
This section provides a description of each option available in the menus
when the Users branch is selected. The following menus are available:
•
File menu, as described in the following section.
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 51.
•
Workspace shortcut menu, as described on page 51.
File Menu – Users Branch
The File menu is displayed below.
New User
Creates a new user for the current client station.
Properties
Displays the properties of the selected user.
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Getting Started with Sheer DNA Manage
Exit
Exits Sheer DNA Manage. For more information, refer to page 56.
Tree Pane Menu – Users Branch
When the user right-clicks on the Users branch in the Tree pane the
following menu is displayed:
New User
Creates a new user for the current client station.
Workspace Shortcut Menu – Users Branch
When the user right-clicks in the table in the Workspace the following menu
is displayed:
Change Password
Displays the Set Password dialog box that enables the administrator to edit a
user’s password.
Delete
Deletes the selected user name from the system.
Note: The user name root cannot be deleted.
Properties
Displays the properties of the selected user.
Toolbar – Users Branch
The Users branch contains the following tools:
Opens the New User dialog box enabling the user to define a
new user for the current client station.
Displays the properties of the selected user.
Deletes the selected user name from the system.
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2.3.8
Workflow Engine Branch
The Workflow Engine branch enables the user to manage workflow templates
and running workflows in runtime. The Workflow Engine branch includes the
following sub-branches:
•
Templates: Displays a list of the deployed workflow templates and
enables the user to view the properties of the workflow template. For
more information, refer to the section below.
•
Workflows: Displays a list of the running or completed workflows and
enables the user to view and alter their current status. For more
information, refer to page 54.
Templates
The Templates sub-branch enables the user to:
•
View a list of the deployed workflow templates
•
View the properties (attributes) of a workflow template
•
Delete a workflow template
The Sheer DNA Manage window with the Templates sub-branch selected is
displayed below.
The table displays the names of the workflow templates (in the Workspace),
as defined using the Sheer Workflow Editor.
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Getting Started with Sheer DNA Manage
For more information about:
•
Menu options, refer to the following section.
•
Toolbar options, refer to page 54.
Templates Menus
This section provides a description of each option available in the menus
when the Templates sub-branch is selected. The following menus are
available:
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described the following section.
•
Workspace shortcut menu, as described on page 53.
Tree Pane Shortcut Menu – Templates Branch
Right clicking on the Templates sub-branch displays the following shortcut
menu:
Properties
Displays a list of the workflow templates available on the Sheer DNA
Gateway.
Workspace Shortcut Menu – Templates Branch
When the user right-clicks in the table in the Workspace the following
shortcut menu is displayed:
Properties
Displays the properties (attributes) of the selected workflow template.
Delete
Deletes the selected workflow template.
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Toolbar – Templates Branch
When the Templates sub-branch is selected in the Tree pane the toolbar
contains the following tools:
Deletes the selected workflow template.
For more information about workflows, refer to the Cisco Active Network
Abstraction Workflow User’s Guide.
Workflows
The Workflows sub-branch enables the user to:
•
View the list of running or completed workflows and the status of each
•
View the output of a workflow
•
Abort a workflow that is being processed or that has been completed, and
initiate rollback
•
Delete a workflow
•
View the properties of a workflow
The Sheer DNA Manage window with the Workflows sub-branch selected is
displayed below.
The following columns are displayed in the Workspace table when the
Workflows sub-branch is selected:
•
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ID: A unique sequential number given to the workflow.
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Getting Started with Sheer DNA Manage
•
Name: The name of the workflow, as defined using the Sheer Workflow
Editor.
•
State: The current status of the workflow, namely, Ready, Running,
Done, or Aborted.
For more information about:
•
Menu options, refer to the following section.
•
Toolbar options, refer to page 56.
Workflows Menus
This section provides a description of each option available in the menus
when the Workflows sub-branch is selected. The following menus are
available:
•
Tools menu, as described on page 22.
•
Help menu, as described on page 22.
•
Tree Pane shortcut menu, as described on page 55.
•
Workspace shortcut menu, as described on page 55.
Tree Pane Menu – Workflows Branch
Right clicking on the Workflows sub-branch displays the following shortcut
menu:
Properties
Displays a list of the scripts and their current status.
Workspace Shortcut Menu – Workflows Branch
When the user right-clicks in the table in the Workspace the following
shortcut menu is displayed:
Show Output
View the output of the workflow.
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Abort/Rollback
Aborts the workflow and performs rollback if the workflow is running, or if
the workflow has already been completed it performs rollback.
Delete
Deletes the workflow from the database.
Note: A workflow can only be deleted from the database when it is Done or
Aborted. It cannot be deleted while the process is still running.
Properties
Displays the properties (attributes) of the selected workflow, including its
status.
Toolbar – Workflows Branch
When the Workflows sub-branch is selected in the Tree pane the toolbar
contains the following tools:
Deletes the workflow from the database.
For more information about workflows, refer to the Cisco Active Network
Abstraction Workflow User’s Guide.
2.4
Logging Out
When the user has finished working with Sheer DNA Manage the user can
log out of the application. Any changes that were made are automatically
saved when logging out.
To log out of Sheer DNA Manage
1.
From the File menu, select Exit,
or
Click
to close the Sheer DNA Manage window.
The following message is displayed:
2.
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Click Yes. The Sheer DNA Manage window is closed.
Cisco Systems, Inc.
Deploying Sheer DNA
3
Deploying Sheer DNA
About this chapter:
This chapter describes the steps that must be performed to deploy Sheer DNA
and provides cross-references to the relevant sections in this Administrator’s
Guide.
3.1
System Setup Flow
The flow below describes the steps required to deploy Sheer DNA using
Sheer DNA Manage and the order in which they must be performed.
Step 1: Prepare a deployment plan
Step 2: Set up and manage DNA Servers
Step 2.1: Add Sheer DNA Units
Step 3: Customize
protection groups
Step 2.2: Create and launch AVMs
Step 2.3: Create and assign VNEs
Step 4: Customize polling groups
Step 5: Define static links
(optional)
Step 6: Manage and run workflows
(optional)
Step 1: Prepare a deployment plan: The user must decide the following:
•
How many Sheer DNA Unit servers are going to be deployed and
allocate AVMs (Autonomous Virtual Machines) to each server.
•
How many and what types of Network Elements will be managed by
each AVM.
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•
How many protection groups there are going to be and how Sheer DNA
Units are going to be grouped together in protection groups (clusters),
based on the following considerations:
•
Device type
•
Geographical location
•
Importance of device
•
Number of devices
Note: The planning of Protection Groups in the deployment plan is
only applicable when high availability is enabled. For more information,
refer to the Cisco Active Network Abstraction High Availability User’s
Guide.
•
How many standby Sheer DNA Units are going to be deployed.
•
How Sheer DNA Units, standby Sheer DNA Units and protection groups
are going to be deployed and allocated.
•
How many network scopes are required and according to what policy.
•
How many users will be defined.
Step 2: Set up and manage DNA Servers: This includes the following:
•
Step 2.1: Add Sheer DNA Units: Enables the administrator to add a
Sheer DNA Unit. Transport links are created automatically between the
Sheer DNA Unit and its associated Sheer DNA Gateway in a star
topology or between two Sheer DNA Units. For more information, refer
to the section Adding New Sheer DNA Units on page 71.
In addition, the administrator can configure Sheer DNA Units for high
availability and assign the Sheer DNA Units to protection groups. The
standby Sheer DNA Units can be configured and assigned to protection
groups (optional). For more information, refer to the Cisco Active
Network Abstraction High Availability User’s Guide.
•
Step 2.2: Create and launch AVMs: Enables the administrator to add
AVMs to managed Network Elements. For more information, refer to the
section Creating AVMs on page 80.
•
Step 2.3: Create and assign VNEs: Enables the administrator to create
a Virtual Network Element (VNE) that corresponds to a Network
Element. For more information, refer to the section Defining VNEs on
page 89.
Note: Additional Units, AVMs, VNEs, Scopes and Users can be added or
edited at any time.
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Deploying Sheer DNA
Step 3: Customize protection groups: Enables the administrator to change
the default setup of Sheer DNA Units by customizing protection groups
(clusters) and then assigning Sheer DNA Units to these groups. For more
information, refer to Cisco Active Network Abstraction High Availability
User’s Guide.
Important Note: You must assign a DNA Unit and/or Redundant Unit to a
specific Protection Group.
Step 4: Customize polling groups: Enables the administrator to customize
new polling groups and rates. For more information, refer to the section
Customizing a Polling Group on page 116.
Note: This step can be performed at any time after Step 1.
Step 5: Define static links: Enables the administrator to add a static link
between two ports of two Network Elements in the network (optional). For
more information, refer to the section Creating a Static Link on page 127.
Step 6: Manage and run workflows: Enables the administrator to manage
workflow templates and running workflows in runtime using the Workflow
Engine branch (optional). For more information, refer to Chapter 9,
Managing Workflows.
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3.2
User and View Setup Flow
The flow below describes the steps required to setup Sheer DNA users and
the view using Sheer DNA Manage and the order in which they should be
performed.
Step 1: Install client license(s)
Step 2: Define scope(s)
Step 3: Define Sheer DNA user accounts
Step 4: Customize a message of the day
(optional)
Step 1: Install client license(s): Enables the administrator to install and
uninstall the client license provided by Sheer. For more information, refer to
the section Managing Client Licenses on page 107.
Step 2: Define scope(s): Enables the administrator to define and manage
scopes. For more information, refer to the section Creating Scopes on
page 140.
Step 3: Define Sheer DNA user accounts: Enables the administrator to
define and manage Sheer DNA user accounts. For more information, refer to
section Creating New Sheer DNA User Accounts on page 143.
Step 4: Customize a message of the day: Enables the administrator to
define a message (service disclaimer) that will be displayed when the user
logs in to the Sheer Client applications. For more information, refer to section
Customizing a Message of the Day on page 113.
For a detailed description about how Sheer DNA implements a role-based
security mechanism with scopes (groups of Network Elements) that are
granted to users and managing users in the Sheer DNA platform, refer to
Chapter 10, Managing Sheer DNA Security.
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General DNA Manage Tables
4
General DNA Manage Tables
About this chapter:
This chapter describes how to perform general Sheer DNA Manage functions
when working with tables:
Working with DNA Manage Tables, page 61, describes how to work with
Sheer DNA Manage tables, including finding information, opening filters and
exporting table information.
Finding Text in a Table, page 63, describes how to sort a table by defining
specific criterion.
Filtering Information, page 63, describes how to define a filter for the data
displayed in the Workspace. In addition, it describes how to select lines and
set specific selection filters.
Setting Selection Filters, page 65, describes how to choose a line or specific
set of lines, and display them in the table.
Sorting a Table, page 67, describes how to sort tables by defining specific
criteria.
Exporting the Table to a File, page 68, describes how to export all the
currently displayed data from the Workspace to a CSV file.
All these functions are performed using the Sheer DNA Manage table toolbar
above the displayed table.
4.1
Working with DNA Manage Tables
Various tables are used throughout the application to display different types
of information. Sheer DNA Manage enables the user to perform the
following functions using the toolbar displayed above the table in the
Workspace:
•
Find text in a table.
•
Define a filter in a table.
•
Clear a defined filter from a table.
•
Choose lines and set a selection filter in a table
•
Undo the previous selection filter in a table
•
Undo all selection filters
•
Sort the table according to a column
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•
Export table information.
•
Finding specific information in DNA Manage tables
You can also find specific DNA Manage information, such as DNA Units,
toolbar button and entering criteria into the
AVM/VNE details using the
Find dialog box. For more information, refer to section Finding a
Unit/AVM/VNE on page 76.
For more information about the Table toolbar, refer to page 18.
The user can open the Filter dialog box by clicking the
criteria by table field, operator, and text.
button and sorting
The user can also (multiple) select specific lines and display them in the table
using the
using the
button, and undo the last applied filter, or rewind all filters
buttons.
Sheer DNA Manage enables the user to sort a table in one or more of the
following ways:
•
According to a column by clicking on the required column heading. The
icon is displayed next to the selected column heading.
•
In ascending or descending order by clicking on the column heading.
•
By clicking the
button in the toolbar of the table and specifying the
criterion by which the table will be sorted. For more information about
sorting a table using the
button, refer to page 67.
A triangle is displayed next to the column heading to indicate the column
according to which the table is sorted.
Clicking on a red triangle displayed in a cell expands the cell to display all of
the information in the cell.
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General DNA Manage Tables
4.2
Finding Text in a Table
Sheer DNA Manage enables the user to search for information in the
Workspace by entering the search criteria, for example, by entering a partial
user name.
Note: The tools displayed in the table are a generic component of Sheer
DNA applications.
To find text in a table
1.
In the table toolbar, in the Find field enter the search criteria.
2.
Press Enter. The row matching the search criteria is highlighted in the
table.
Note: Click F3 to continue searching the table.
4.3
Filtering Information
Sheer DNA Manage enables the user to define a filter for the data displayed
in the Workspace according to a selected column. For example, in the Users
branch information can be filtered according to user name.
To define a filter
1.
Cisco Systems, Inc.
. An example of the Filter dialog box
In the table toolbar, click Filter
with defined field and operator criteria displayed.
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The following dropdown lists are displayed in the Filter dialog box:
•
•
Field: Displays a dropdown list of all the columns displayed in the
current table.
Operator: Displays a dropdown list of the values included in the
filter operation.
The following checkbox is displayed in the Filter dialog box:
•
Not: Select this checkbox to filter the negative of the value in the
Operator field. For example, if the Not checkbox was selected in
the Filter dialog box, the filter operator would be the equivalent of
“does not contain”.
The following free text area is displayed in the Filter dialog box:
• Search for: Enter the required filter value.
2.
Select an option from the Field and Operator dropdown lists.
3.
Enter the required filter values in the Search for field.
4.
Click OK. The information is displayed in the Workspace using the
defined filter.
Note: The Filter button toggles to
applied.
indicate that a filter has been
The filter can be cleared in order to display all the data in the table again.
To clear a filter
. The Filter dialog box is displayed.
1.
In the toolbar, click Filter
2.
Click Clear. The Workspace displays all of the data.
Important Note: Use the Clear filter option to clear ALL of the filter
settings (refer to the note in the Setting Selection Filters section on
page 65).
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General DNA Manage Tables
4.4
Setting Selection Filters
The user can choose a line or specific set of lines, and display them in the
table (all un-selected lines are hidden). The user may make continuous
multiple line selections, setting the table content after each selection, using
the Set Selection Filter
button.
The user can undo the last line selections (one step back), one at a time, using
button, or undo (rewind) all multiple line
the Previous Selection Filter
selections, using the Rewind All dropdown menu option.
This powerful Sheer DNA filtering mechanism enables the user sort though
several hundred lines and pinpoint the appropriate line(s) that contain the
required information.
For example, to filter and display seven lines in a 129 line Database Segment
table:
•
Select the appropriate lines in the table using standard Windows mouse
and/or keystroke operations
•
Apply the filter to the selected line(s) using the
button.
To choose multiple lines and apply the set selection filter
1.
Select the line(s) in a DNA Manage table using the mouse and standard
Microsoft® Windows selection keys. The Set Selection Filter
button is activated.
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2.
Click the
button. Only the selected line(s) remain in the table.
To undo the previous filter selection
1.
Select one or several lines and filter them out using the appropriate table
toolbar buttons.
2.
To undo the last filtering out selection, select the Previous Selection
Filter
button. The table will display all lines that appeared before
your last filter selection.
To undo all previous selected filter out options
1.
Select, filter out and sort lines as required in the table using the
appropriate table toolbar buttons, such as Previous Selection Filter
button.
2.
Click the Previous Selection
menu option is displayed:
3.
Select Rewind All. All the lines in the table are displayed.
button. The Rewind All dropdown
Important Note: To clear all manually selected and defined filter
options, use the Clear command button in the Filter dialog box (refer to
page 64 for operating instruction to clear filters).
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General DNA Manage Tables
4.5
Sorting a Table
The tables displayed in Sheer DNA Manage can be sorted by defining
specific criterion on a one-time only basis or continuously.
To sort a table
1.
In the toolbar, click
. The Sort dialog box is displayed.
The following dropdown lists are displayed in the Sort By area:
•
Sort By: A dropdown list of all of the columns displayed in the
currently displayed table. The table is sorted firstly according to the
selection made here. Select ascending or descending order.
•
Then By: Dropdown lists of all of the columns displayed in the table.
The table is sorted secondly and then lastly according to the
selections made here. Select ascending or descending order.
The following radio buttons are displayed in the Sort Operation area:
•
Once Only: Sorts the information displayed in the table according to
the specified criterion once only. When this option is selected a
triangle is displayed in the table heading for the selected column.
•
Continuously/Repeatedly: Sorts the information displayed in the
table according to the specified criterion continuously. When this
option is selected the icon is displayed next to the selected column
heading.
2.
Select an option from the Sort By dropdown list and Ascending or
Descending order.
3.
Select an option from the Then By dropdown lists and Ascending or
Descending order (optional).
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4.6
4.
Select Once Only or Continuously/Repeatedly.
5.
Click OK. The table information is sorted according to the filter defined.
Exporting the Table to a File
Sheer DNA Manage enables the user to export all the currently displayed
data from the Workspace to a CSV file. Either the selected rows are exported
or when nothing is selected the entire table is exported. The data can then be
imported and viewed at a later stage.
Note: This tool occurs throughout the application with the same
functionality.
To export the table to a file
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button. The Export
1.
In the table toolbar, click the Export to CSV
Table To File dialog box is displayed.
2.
Browse to the directory where you want to save the table.
3.
In the File name field, enter a name for the table.
4.
Click Save. The table or selected row(s) is saved in the selected
directory.
Cisco Systems, Inc.
Managing Sheer DNA Units
5
Managing Sheer DNA Units
About this chapter:
This chapter describes how to manage Sheer DNA Units. This includes
adding and removing Sheer DNA Units, and viewing Sheer DNA Unit
properties.
What is a DNA Unit?, page 70, provides a description of a DNA Unit.
Adding New Sheer DNA Units, page 71, describes how to add a new Sheer
DNA Unit to the Sheer DNA fabric.
Editing Sheer DNA Unit Properties, page 73, describes how to view the
properties of a Sheer DNA Unit.
Removing a Sheer DNA Unit, page 75, describes how to remove a Sheer
DNA Unit.
Finding a Unit/AVM/VNE, page 76, describes how to locate Sheer DNA
Units, AVMs and VNEs among all Sheer DNA Servers.
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5.1
What is a DNA Unit?
The main purpose of the Sheer DNA Units is to host the Autonomous VNEs.
The Sheer DNA Units are interconnected to form a fabric of VNEs that can
inter-communicate with other VNEs regardless of which unit they are
running on. Each Sheer DNA Unit can host thousands of Autonomous VNE
processes (depending on the server system size).
For more information about adding Sheer DNA Units, refer to the section
Adding New Sheer DNA Units on page 71.
The Sheer DNA Units also allow for optimal VNE distribution, ensuring
geographic proximity between the VNE and its managed NE.
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Managing Sheer DNA Units
The clustered N+m High Availability mechanism within the Sheer DNA
Fabric is designed to handle the failure of a Sheer DNA Unit. Sheer DNA
Unit availability is established in the Gateway, running a Protection Manager
process, which continuously monitors all the Sheer DNA Units in the
network. Once the Protection Manager detects a Sheer DNA Unit that is
malfunctioning, it automatically signals one of the m servers in its cluster to
load the configuration of the faulty unit (from the system Registry), taking
over all its managed Network Elements. The switchover to the redundant
standby Sheer DNA Unit does not result in any loss of information in the
system, as all of the information is auto-discovered from the network, and no
persistent storage synchronization is required. When a Sheer DNA Unit is
configured it can be designated as being an active or standby unit.
Note: The Sheer DNA system is usually configured with Sheer’s High
Availability mechanism enabled.
For more information about high availability, standby units, and defining a
redundant unit, refer to the Cisco Active Network Abstraction High
Availability User’s Guide.
5.2
Adding New Sheer DNA Units
Sheer DNA Manage enables the user to add a Sheer DNA Unit to the Sheer
DNA Fabric. Sheer DNA Manage automatically registers the Sheer DNA
Unit in the registry and creates a transport uplink between the Sheer DNA
Unit and the Sheer DNA Gateway. The Sheer DNA Units are linked to the
Sheer DNA Gateway in a star topology.
In addition, the administrator can enable or disable high availability for a
Sheer DNA Unit. These settings enable the administrator to define to which
protection group a Sheer DNA Unit is assigned and whether it is enabled for
high availability.(For more information on high availability, refer to the
Cisco Active Network Abstraction High Availability User’s Guide.)
Note: By default all Sheer DNA Units in the Sheer DNA Fabric belong to
one big cluster, namely, the default-pg protection group.
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To add a new DNA Unit
1.
Select the DNA Servers branch in the DNA Manage window Tree pane.
The DNA Servers branch is displayed.
2.
Right-click on the DNA Servers branch to display the shortcut menu and
select New DNA Unit or in the toolbar click New Unit or from the File
menu select New DNA Unit. The New DNA Unit dialog box is
displayed.
The following field is displayed in the New DNA Unit dialog box:
•
IP Address: The unique IP address of the Sheer DNA Unit.
Note: If a Sheer DNA Unit is already configured with the same IP
address an error message is displayed.
The following checkboxes are displayed in the New DNA Unit dialog
box:
•
Enable Unit Protection: Define whether a Sheer DNA Unit is
enabled (checkbox is selected) for high availability. This option is
selected by default.
Note: It is highly recommended that the user does not disable this
option. When you define the DNA Unit as the “new” Standby Unit,
this option is automatically disabled. For more information about
configuring standby Sheer DNA Units, refer to the Cisco Active
Network Abstraction High Availability User’s Guide.
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Managing Sheer DNA Units
•
Standby Unit: Define whether a Sheer DNA Unit is defined
(checkbox is selected) as a standby unit.
•
The Protection Group dropdown list displays the currently defined
list of customized protection groups
3.
Enter the IP Address of the new Sheer DNA Unit in the IP Address
field.
4.
Select the required protection group from the Protection Group
dropdown list.
5.
Click OK. The new Sheer DNA Unit is displayed in the Tree pane and
the Workspace of the Sheer DNA Manage window.
If the new Sheer DNA Unit is installed and reachable it will start
automatically. The Sheer DNA Unit is registered with the Sheer DNA
Gateway. Specifically, the command creates the configuration registry for the
new Sheer DNA Unit in the Golden Source. For more information about the
Golden Source Registry, refer to page 157.
In addition, Sheer DNA Manage automatically creates the transport uplinks
between the Sheer DNA Unit and the Sheer DNA Gateway.
5.3
Editing Sheer DNA Unit Properties
The user can view the properties of a Sheer DNA Server, for example,
physical and allocated memory.
To edit a Sheer DNA Unit’s properties
1.
Select the DNA Servers branch in the Sheer DNA Manage window Tree
pane. The DNA Servers branch is displayed.
2.
Select the Sheer DNA Unit or Sheer DNA Gateway in the Workspace or
expand the DNA Servers branch and select the required Sheer DNA Unit
or Sheer DNA Gateway in the Tree pane.
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3.
Right-click on the required Sheer DNA Unit or DNA Gateway branch to
display the shortcut menu and select Properties, or in the toolbar click
Properties or from the File menu, select Properties. The DNA Unit
Properties dialog box is displayed.
The following fields are displayed in the DNA Unit Properties dialog
box:
• IP Address: The IP Address of the Sheer DNA Unit or Sheer DNA
Gateway.
• Status: The status of the Sheer DNA Unit or Gateway, namely, Up or
Down.
• Up Since: The date and time that the Sheer DNA Unit or Sheer DNA
Gateway was started.
• Physical Memory: The physical memory of the Sheer DNA Unit or
Sheer DNA Gateway.
•
Allocated Memory: The amount of memory allocated to the Sheer
DNA Unit or Sheer DNA Gateway. Allocated memory is the sum of
all of the memory settings for all of the AVMs.
•
Used Memory: The maximum memory used by the Sheer DNA Unit
or Sheer DNA Gateway. (Used memory is the sum total of the
memory used by all the AVMs that are Up.)
The Protection Group dropdown list displays the currently defined list
of customized protection groups.
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Managing Sheer DNA Units
4.
You can change the assigned DNA Unit protection group, as required, by
selecting an option from the dropdown list.
The Enable Unit Protection checkbox defines whether a Sheer DNA
Unit is enabled (the checkbox is selected) for high availability. This
option is selected by default when high availability is enabled.
Note: If and when you change (disable/enable) the Enable Unit
Protection option (high availability), changes will only become effective
after a delay of about 15 minutes.
5.
5.4
Click OK. The DNA Unit Properties dialog box is closed.
Removing a Sheer DNA Unit
The user can remove a Sheer DNA Unit.
Note: The user must first delete all of the VNEs and non-reserved AVMs
before deleting a Sheer DNA Unit. The reserved AVMs cannot be deleted.
For more information about reserved AVMs, refer to page 80.
Note: The Sheer DNA Gateway cannot be deleted.
Note: The Sheer DNA Unit cannot be deleted if it is the Sheer DNA Gateway
to which the user is connected.
To remove a Sheer DNA Unit
1.
In the Sheer DNA Manage window Tree pane, select the DNA Servers
branch. The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the Sheer DNA Unit you
want to remove in the Tree pane or Workspace.
3.
Right-click on the Sheer DNA Unit that you want to remove to display
the shortcut menu, and select Delete. A warning message is displayed.
4.
Click Yes to proceed or No to cancel the operation. A confirmation
message is displayed.
5.
Click OK. The Sheer DNA Unit is deleted and is no longer displayed in
the Tree pane and Workspace.
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5.5
Finding a Unit/AVM/VNE
A single search in Sheer DNA Manage can locate Sheer DNA Units, AVMs
and VNEs among all Sheer DNA Servers according to specifically defined
search criteria.
To find a Unit/AVM/VNE
1.
In the Sheer DNA Manage window Tree pane, select the DNA Servers
branch or any sub-branch. The selected branch or sub-branch is
displayed.
2.
In the toolbar, click
Find. The Find dialog box is displayed.
The Find field enables the user to enter specific search criteria in order
to find the required DNA Unit/AVM/VNE. For example, the user can
search for an AVM using the ID number or search for a Unit using an IP
address.
The Types dropdown list enables the user to specify whether the user is
searching for a Unit/AVM/VNE by selecting an option from the list.
When an option is selected from the list, then the Property area is
enabled, displaying the properties for the selected option. For example, if
AVM is selected from the Types dropdown list, then the AVM’s
properties are displayed in the Property area and the user can select a
specific property according to which the user wants to conduct the
search.
The Up and Down radio buttons enable the user to search up and down
(you can also use the F3 key).
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Managing Sheer DNA Units
The following buttons are displayed in the Find dialog box:
•
Find: Searches for the DNA Unit/AVM/VNE from the selected
point in the Tree pane, either up or down.
•
Cancel: Cancels the search and clears the Find dialog box.
3.
Enter the search criteria in the Find field.
4.
From the Types dropdown list select DNA Unit/AVM/VNE (optional).
5.
From the Property area select a specific property (optional).
6.
Select a direction, namely, Up or Down.
7.
Click Find. The DNA Unit/AVM/VNE matching the search criteria is
highlighted in Sheer DNA Manage.
Note: Click F3 to view the next DNA Unit/AVM/VNE matching the
search criteria.
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Managing AVMs and VNEs
6
Managing AVMs and VNEs
About this chapter:
This chapter describes defining and managing AVMs and VNEs.
Creating AVMs, page 80, describes how to define an AVM for a Sheer
DNA Unit Server.
AVM Status, page 82, describes the status of AVMs when they are created
and loaded.
Viewing and Editing an AVM’s Properties, page 83, describes how to
view and edit an AVM’s properties.
Deleting an AVM, page 84, describes how to delete AVMs.
Starting and Stopping AVMs, page 85, describes how to stop and start
AVMs, and the respective changes in AVM status.
Moving AVMs, page 86, describes how to manage AVM before you move
them, and their status after a move.
VNEs Overview, page 87, provides an overview of assigning VNE IP
addresses, the VNE relationship to an AVM, and how to add a VNE to an
AVM.
Defining VNEs, page 89 describes how to open the New VNE dialog box and
provides a description of property options you may define in each tab.
Viewing and Editing a VNE’s Properties, page 101, describes how to view
and edit the properties of a VNE.
Deleting a VNE, page 103, describes how to delete a VNE from an AVM.
Changing the VNE’s State, page 104, describes how to start or stop a VNE
or move a VNE to maintenance mode.
Moving Multiple and Single VNEs, page 105, describes how to move
VNEs between AVMs.
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6.1
Creating AVMs
Sheer DNA Manage enables the user to define AVMs for DNA Unit Servers.
Every AVM (Autonomous Virtual Machine) in the Sheer DNA Fabric is by
default managed by the watchdog protocol. Sheer DNA Manage enables the
administrator to define AVMs for Sheer DNA Units and enable or disable the
watchdog protocol on the AVM.
In order to define an AVM:
•
The Sheer DNA Unit must be installed.
•
The Sheer DNA Unit must be connected to the transport network.
•
The default AVMs, namely, AVM 0 (the switch AVM), AVM 99 (the
management AVM) and AVM 100 (the trap management AVM) must be
running.
Note: For more information on the status of AVMs, for example, status
Up when the AVM is running, refer to the AVM Status section on
page 82.
•
The new AVM must have a unique ID within the Sheer DNA Unit.
Note: There are certain AVM ID numbers that are reserved, namely, AVM 0100 and these cannot be used. In addition, there may be other reserved AVM
ID numbers. The user will be unable to enter a reserved number.
To create an AVM
Page 80
1.
Select the DNA Servers branch in the Sheer DNA Manage window’s
Tree pane. The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required DNA Servers
Entity sub-branch.
Cisco Systems, Inc.
Managing AVMs and VNEs
3.
Right-click on the required Sheer DNA Unit to display the menu and
select New AVM or in the toolbar click New AVM or from the File
menu select New AVM. The New AVM dialog box is displayed.
The following fields are displayed in the New AVM dialog box:
•
DNA Unit: The IP address of the selected Sheer DNA Unit.
Note: The Sheer DNA Unit does not have to be Up to create a new
AVM.
•
ID: The name of the AVM as defined in Sheer DNA Manage, and
unique to the Sheer DNA Unit, for example, AVM 18.
Note: The AVM numbers 0-100 are reserved and cannot be used.
The user will be unable to enter a reserved number. A message is
displayed in the New AVM dialog box advising the user that the
number is reserved.
•
Key: The key is a string that uniquely identifies an AVM in the
system (across all DNA Units) thus enabling a transparent failover
scenario in the system. If the user does not enter a key the default
key is used, namely, “ID + timestamp”.
•
Allocated Memory: The maximum memory allocated to the AVM.
The following checkboxes are displayed in the New AVM dialog box:
•
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Activate on creation: Select this option to load the AVM into the
bootstrap of the Sheer DNA Unit. This changes the administrative
status of the AVM to Up and ensures that the AVM is loaded on
subsequent restarts of the Sheer DNA Unit. By default this option is
unchecked and the newly created AVM has an administrative status
of Down.
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•
Enable AVM Protection: By default this option is selected
enabling the watchdog protocol on the AVM when high availability
is enabled. For more information, refer to the Cisco Active Network
Abstraction High Availability User’s Guide.
Note: It is highly recommended that the user does not disable this
option if high availability is enabled.
Note: If this option is selected or unchecked when the AVM is up
then you will need to restart the AVM in order for this change to
take affect.
4.
Define the properties of the AVM.
5.
Click OK. The new AVM is added to the selected Sheer DNA Unit, is
displayed in the Workspace, and is activated.
Creating the new AVM results in Sheer DNA providing the registry
information of the new AVM in the specified Sheer DNA Unit, and the AVM
can now host VNEs. For more information, refer to the section Defining
VNEs on page 89.
6.2
AVM Status
The status of AVMs (and VNEs) is affected by Admin and Oper mode.
Admin mode is the administrative instructions that are sent to the AVM.
Oper mode is the actual status of the AVM, for example, Up. For more
information about Admin and Oper modes, refer to page 83.
When moving an AVM (file), its status, for example, Up or Down, has a
bearing on whether the file is reloaded (Up) or not (Down). For more
information about moving AVMs, refer to page 86. For more information
about starting and stopping AVMs, refer to page 85.
An AVM can have only one of the following statuses at a time:
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•
Up: The file (process) is reachable and was loaded and started. When a
Start (command) option is issued, and no problems are encountered, such
as an overloaded server, the AVM is running (has been loaded and
started), and its status is Up.
•
Down: The file (process) is reachable and was stopped. When a Stop
(command) option is issued, Sheer DNA issues instructions to shutdown
all of the processes. When all of the processes have been stopped, the
status of the AVM is Down.
•
Starting Up: When a Start or upload (command) option is issued, and
for example, the Server cannot execute it due to the fact that it is busy or
overloaded, the status of the AVM is Starting Up.
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Managing AVMs and VNEs
•
6.2.1
Shutting Down: When a Stop (command) option is issued, and while the
command is being executed (some processes may still be running), the
status of the AVM is Shutting Down.
Admin and Oper Mode AVM Status
The table below describes the status of an AVM depending on the Admin and
Oper modes, as displayed in the Status column of the AVMs table. The
Admin mode is the administrative instructions that are sent to the VNE. The
Oper mode is the actual status of the VNE, for example, Up.
Status
Up
Shutting Down
Down
Starting Up
6.3
Admin Mode
Up
Down
Down
Up
Oper Mode
Up
Up
Down
Down
Viewing and Editing an AVM’s Properties
Sheer DNA Manage enables the user to view and edit the properties of an
AVM, for example, the key and the allocated memory.
To view and edit an AVM’s properties
1.
Select the DNA Servers branch in the Sheer DNA Manage window’s
Tree pane. The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM sub-branch
in the Tree pane.
3.
Right-click to display the shortcut menu and select Properties, or from
File menu, select Properties or in the toolbar click Properties.
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The AVM Properties dialog box is displayed with the details of the
selected AVM, including, the IP address/key of the Sheer DNA Unit.
The following field is displayed in the AVM Properties dialog box:
•
4.
Status: The status of the AVM, namely, Up, Down or Unreachable.
For more information, refer to the section AVM Status on page 82.
Edit the details of the AVM, as required.
Note: For more information on the other fields displayed in the AVM
Properties dialog box, refer to page 81.
5.
6.4
Click OK. The AVM’s new properties are displayed in the Workspace.
Deleting an AVM
The user can remove an AVM. If the AVM is running it will be stopped
before removal. This procedure deletes the registry information of the AVM
in the specified Sheer DNA Unit. If there are VNEs running in the AVM then
an error message will be displayed and the user will be unable to delete the
AVM.
Important Note: You must remove all of the VNEs before removing their
hosting AVM.
For more information, refer to Deleting a VNE on page 103.
Note: Reserved AVMs 0-100 cannot be deleted.
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To delete an AVM
1.
Select the DNA Servers branch in the Sheer DNA Manage window’s
Tree pane. The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM sub-branch
in the Tree pane.
3.
Right-click to display the menu and select Delete. A warning message is
displayed.
4.
Click Yes. A confirmation message is displayed.
5.
Click OK. The selected AVM is deleted from the selected Sheer DNA
Unit.
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
6.5
Starting and Stopping AVMs
Sheer DNA Manage enables the user to start or stop an AVM.
Note: Stopping the AVM process stops all of the VNEs in the AVM. You
should be aware that any change in status of the AVMs, may take some time
to be applied. For example, during execution of the Stop command it may
take several minutes before the status changes from Shutting Down to
Down.
To start or stop an AVM
1.
Select the DNA Servers branch in the Sheer DNA Manage window’s
Tree pane. The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM
sub-branch.
3.
Right-click to display the shortcut menu and select Actions | Start or
Actions | Stop or in the toolbar click
or
.
The AVM is started or stopped and the appropriate status is displayed as
follows:
•
When an AVM is started a Starting Up status is displayed in the
Workspace.
•
When the AVM is started an Up status is displayed in the Workspace.
•
When the AVM is stopped a Shutting Down status is displayed in the
Workspace.
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•
When the AVM is stopped the Down state is displayed in the
Workspace.
Note: When the AVM status is displayed as Down, the status remains
Down and no-reload will take place.
6.6
Moving AVMs
Sheer DNA Manage enables the administrator to move an entire AVM
between Sheer DNA Units.
Note: Reserved AVMs 0-100 cannot be moved.
Sheer DNA Manage automatically checks the status of the AVM/VNE before
it is moved. This information is maintained in the memory.
If the AVM is Up it is stopped and then it is moved to the target Sheer DNA
Unit. After the move is completed, the AVM is reloaded according to its
status prior to the move, namely, the status of the AVM as it was before the
move is maintained. For example, if it was Up before the move it will remain
Up, if it was Down it will remain Down.
To move an AVM
Page 86
1.
Select the DNA Servers branch in the Sheer DNA Manage window. The
DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM
sub-branch.
Cisco Systems, Inc.
Managing AVMs and VNEs
3.
Right-click to display the menu and select Move AVM. The Move to
dialog box is displayed.
The Move to dialog box displays a tree-and-branch representation of the
selected Sheer DNA Server and its Units, excluding the Sheer DNA Unit
in which the AVM is currently located. The highest level of the tree
displays the Sheer DNA Server. The branches can be expanded and
collapsed in order to display and hide information.
4.
Browse to and select the Sheer DNA Unit (branch) where you want to
move the AVM(s).
5.
Click OK. The AVM(s) is moved and now appears beneath the selected
Sheer DNA Unit.
For information about moving VNEs, refer to page 105.
6.7
VNEs Overview
A Virtual Network Element (VNE) is designated by its leading IP address
and corresponds to a single Network Element (NE). Typically a Network
Element has only one IP address that is used for management. For such
devices the leading IP address is the single IP address configured for this
device.
In cases where a NE has multiple IP addresses, the operator must choose one
of these IP addresses to be used as a leading IP address. The leading IP
address serves as an identifier of the VNE that corresponds to the NE and is
displayed wherever the IP address of the Network Element is required.
Note: Two VNEs cannot monitor the same Network Element.
Sheer DNA Manage enables the user to create VNEs (replicas of devices),
for example, by entering the IP address, SNMP and polling rate information
and so on. This is called Element Management.
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After Sheer DNA Manage installs and runs the process, samples the device
and collects the data a VNE (Managed Element) is created. The VNE
includes tables and physical inventory, and this Managed Element can be
accessed using Sheer NetworkVision.
6.7.1
VNE Status
The status of VNEs is affected by Admin and Oper mode. Admin mode is the
administrative instructions that are sent to the VNE. Oper mode is the actual
status of the VNE, for example, Up. For more information about Admin and
Oper modes, refer to page 89.
When moving a VNE, its status, for example, Up or Down, has a bearing on
whether the VNE is reloaded (Up) or not (Down). For more information
about moving VNEs, refer to page 105. For more information about starting
and stopping VNEs, refer to page 104.
A VNE can have only one of the following statuses at a time:
•
Up: The VNE (process) is reachable and was loaded and started. When a
Start (command) option is issued, and no problems are encountered,
such as an overloaded server, the VNE is running (has been loaded and
started), and its status is Up.
•
Down: The VNE (process) is reachable and was stopped. When a Stop
(command) option is issued, Sheer DNA issues instructions to shutdown
all of the processes. When all of the processes have been stopped, the
status of the VNE is Down.
•
Unreachable: The VNE cannot be managed by Sheer DNA and its
status is defined as Unreachable. When an option (command) is issued
that cannot be executed by Sheer DNA, the status of the VNE is
Unreachable.
•
Starting Up: When a Start or upload (command) option is issued, and
for example, the Server cannot execute it due to the fact that it is busy or
overloaded, the status of the VNE is Starting Up.
•
Shutting Down: When a Stop (command) option is issued, and while
the command is being executed (some processes may still be running),
the status of the VNE is Shutting Down.
In addition to the statuses described, the VNE can be placed in maintenance
mode, for example, a VNE’s status can be Up and in maintenance mode. NEs
often undergo maintenance operations and planned outages. The Sheer DNA
platform supports such maintenance operations without affecting the overall
functionality of the active network.
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While in maintenance mode (temporary state) a VNE:
•
Does not change state on its own, unless the user explicitly (manually)
switches the VNE back to active state.
•
Never polls the device.
•
Does not report any alarms, including device reachability.
•
Maintains any existing links.
•
Does not fail on verification requests.
For more information about maintenance mode, refer to page 104.
6.7.2
Admin and Oper Mode VNE Status
The table below describes the status of a VNE depending on the Admin and
Oper modes, as displayed in the Status column of the VNEs table. The
Admin mode is the administrative instructions that are sent to the VNE. The
Oper mode is the actual status of the VNE, for example, Up.
Status
Up
Shutting Down
Down
Starting Up
Unreachable
Admin Mode
Up
Down
Down
Up
Up
Oper Mode
Up
Up
Down
Down
Unreachable
For example, if the user starts the VNE, the Admin status is Up but the Oper
status is Down and has not started yet (because the Server is busy), the status
is Starting Up. If the VNE is Up and running and the user stops the VNE,
the Admin status is Down but the process is not terminated immediately, the
status is Shutting Down.
6.8
Defining VNEs
The user adds and defines a new VNE for the system using Sheer DNA
Manage; this VNE corresponds to a Network Element (NE) and should only
be added to the system once. As the VNE loads, Sheer DNA starts
investigating the NE and automatically builds a live model of it, including its
physical and logical inventory, its configuration, and its status.
When adding a new VNE, Sheer DNA creates the registry information of the
new VNE in the Sheer DNA Unit. The newly created VNE has an
administrative status of Down and uses the default community strings and
polling rates. The VNE inherits these properties from the configuration
record that corresponds to the device type.
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A VNE must be loaded into the bootstrap of the Sheer DNA Unit before it
starts monitoring its underlying NE. This changes the administrative status of
the VNE to Up, and ensures that the VNE is loaded on subsequent restarts of
the Sheer DNA Unit. Loading the VNE also starts the VNE immediately. For
more information on the status of VNEs, refer to page 88.
Before adding a new VNE using DNA Manage, the user must first determine
to which Sheer DNA Unit and AVM, the new VNE should be added.
The user can define and manage SNMP, Telnet/SHH, ICMP, and polling
information for the appropriate VNEs in the New VNE dialog box.
Note: A new VNE cannot be added to the reserved AVMs 0-100.
The user can create VNEs that perform reachability testing only through
ICMP. This can be done by creating the VNE and selecting the type ICMP
and then defining the details in the ICMP tab. For more information about
the ICMP tab, refer to page 98.
For information on defining VNE properties in the respective VNE tabs, refer
to the following sub-sections:
•
General properties on page 92
•
SNMP properties on page 94
•
Telnet/SSH properties on page 96
•
ICMP properties on page 98
•
Polling properties on page 99
For details on viewing and editing VNE properties, refer to the section
Viewing and Editing a VNE’s Properties on page 101.
To define the properties of a new VNE
Page 90
1.
Select the DNA Servers branch in the Sheer DNA Manage window’s
Tree pane. The DNA Servers branch is displayed.
2.
Expand the DNA Unit branch and select the required AVM sub-branch in
the Tree pane.
Cisco Systems, Inc.
Managing AVMs and VNEs
3.
Right-click in the Tree pane to display the shortcut menu and select New
VNE, or from File menu select New VNE or in the toolbar, click New
VNE. The New VNE dialog box is displayed.
The New VNE dialog box contains the following tabs:
•
General tab, page 92, enables the user to manage VNE information in the
connected Sheer DNA (Mandatory Name and IP fields).
•
SNMP tab, page 94, enables the user to support polling and accessing
devices using SNMPv1, SNMPv2c and SNMPv3.
•
Telnet / SSH tab, page 96, enables the user to choose Telnet or SSH for
device access and configure the login sequence.
•
ICMP tab, page 98, enable the user to verify that devices are reachable
by sending repetitive ICMP request packets, and testing reachability by
defining the polling rate.
•
Polling tab, page 99, enables the user to associate a VNE in the Sheer
DNA with a polling group or define an instance.
Important Note: The OK button in the New VNE dialog box is enabled only
when the user has typed in the VNE name and IP address in the General tab
(Mandatory Fields).
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6.8.1
General Tab
The General tab enables the user to manage VNE information in the
connected Sheer DNA.
The following VNE identification fields are displayed in the Identification
area:
•
VNE Name: The name of the VNE that is used as a unique key throughout
the system (Sheer NetworkVision, DNA Manage, EventVision).
Note: This name is also used for VNE manipulation commands.
•
IP Address: The IP address of the device.
•
Type: Select the VNE Type from the dropdown list:
•
Auto Detect: Automatically detects the device type and loads the
relevant VNE.
Note: SNMP cannot be disabled if the AutoDetect option is
selected (refer to the SNMP Tab section for more information).
•
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Generic SNMP: Loads a generic VNE.
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Managing AVMs and VNEs
•
Cloud: Loads an unmanaged network segment. Specific cloud
configuration is provided on a per project basis.
•
ICMP: The VNE uses this ICMP-based reachability test to validate
communication with the managed device by continuously sending
ICMP packets.
Note: When this option is selected the ICMP tab is enabled (the
SNMP, Telnet / SSH and Polling tabs are disabled).
•
Scheme: Defines the VNE modeling components investigated during the
discovery process. This enables the administrator to define different
behavior for some devices, for example, for some devices poll only with
SNMP and for other devices also poll with Telnet. Soft properties and
activation scripts are also attached to a specific scheme. By default, the
VNE inherits the VNE Scheme from the Default scheme. Select the
VNE Scheme from the dropdown list. Where more than one scheme
exists in the network, the VNE loads the selected scheme.
The following VNE state fields are displayed in the Initial State area:
•
State: The initial state of the VNE, namely, Start, Stop or Maintenance.
By default, this option is set to Stop.
•
Stop: The VNE is not loaded.
•
Start: The VNE is loaded and starts collecting data.
•
Maintenance: The VNE is started and moved to maintenance mode,
this means that no alarms will be sent. For more information, refer to
page 88.
The following fields are displayed in the Location area of the General tab:
•
DNA Unit: The IP address of the Sheer DNA Unit that hosts the VNE’s
AVM.
•
AVM: The AVM on the Sheer DNA Unit that hosts the VNE.
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6.8.2
SNMP Tab
The SNMP tab enables the user to support polling and accessing devices
using SNMPv1, SNMPv2 and SNMPv3. Selecting the SNMP tab displays
the following dialog box:
The following checkbox and radio buttons are displayed in the SNMP tab of
the New VNE dialog box:
•
Enable SNMP: Check this option to enable the SNMP communication
protocol so that the user can work with it.
Note: A VNE can be SNMP enabled or disabled at any time, however,
when the Auto Detect option is selected in the General tab, it cannot be
disabled. (For more information, refer to the General tab section on page
92).
•
SNMP V1: Select SNMP version 1.
•
SNMP V2: Select SNMP version 2.
•
SNMP V3: Select SNMP version 3.
Note: The SNMP V3 Settings area is only enabled when SNMP
Version 3 is selected.
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The following fields are displayed in the SNMP V1/V2 Settings area:
•
Read: The SNMP Read Community status, namely, Public or Private, as
defined by the user.
•
Write: The SNMP Write Community status, namely, Public or Private,
as defined by the user.
Note: The SNMP V3 Settings area is only enabled when SNMP V3 is
selected.
The following fields are displayed in the SNMP V3 Settings area:
•
Authentication: Select one of the following:
•
No: No authentication is required.
•
md5
•
sha
If MD5 or SHA is selected, enter the required information in the
following fields:
•
•
User
•
Password
Encryption: Select one of the following:
•
No: No encryption is required.
•
DES
If DES is selected, enter the required information in the following field:
•
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Password
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6.8.3
Telnet / SSH Tab
The Telnet / SSH tab enables the user to define the Telnet command
sequence and support SSH for device access (reachability) and investigation.
Selecting the Telnet / SSH tab displays the following tabbed dialog box:
The following checkbox is displayed in the Telnet / SSH tab of the New VNE
dialog box:
•
Enable: Check this option to enable the Telnet/SSH1 communication
protocol to be used by the VNE to investigate the reachability of the
device by activating the Prompt and Run fields, and the Add/Remove
command buttons.
Note: A VNE can be Telnet / SSH enabled or disabled at any time.
The following fields are displayed in the Telnet / SSH tab of the New VNE
dialog box:
•
Protocol: A dropdown list of the available protocols, namely:
•
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Telnet: By default this option is set to Telnet. When Telnet is
selected the Port field automatically displays 23.
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Managing AVMs and VNEs
•
•
•
•
SSH1: When SSH1 is selected the Port field automatically
displays 22. In addition, the SSH information fields are enabled in
the tabbed dialog box.
Port: When Telnet is selected this field automatically displays 23. When
SSH1 is selected this field automatically displays 22. The user can edit
the port number displayed.
Prompt: The expected Telnet/SSH string. This information is displayed
in the table (in the relevant column) after clicking Add.
Run: The Telnet/SSH string to be sent to the device when the expected
prompt is detected. This information is displayed in the table (in the
relevant column) after clicking Add.
The following buttons are displayed in the Telnet / SSH tab of the New VNE
dialog box:
• Add: Adds the Prompt and the Run fields to the list in the table.
• Remove: Removes the selected row from the list in the table.
Use the Up and Down arrows to change the order of the commands in the
list.
Note: The Telnet sequence (the order of the commands) must end with a line
that includes only the prompt field.
The Telnet sequence ends
with a line that includes the
prompt field only
If the SSH1 protocol is selected, enter the required information/properties in
the following fields:
•
•
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User Name
Password
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•
•
6.8.4
Cipher: Sheer DNA supports polling devices using the SSH protocol,
which defines a set of ciphers, namely, encryption algorithms, that may
be used to encrypt data. This field provides a dropdown list of the
available cipher options, namely, 3DES (default), DES and Blowfish.
Authentication: Displays the option Password.
ICMP Tab
The ICMP tab enables repetitive sending of packets to a device to verify that
the device is reachable. The user can define the polling rate (in seconds) for
the VNE. Selecting the ICMP tab displays the ICMP tab in the New VNE
dialog box.
The following checkbox is displayed in the ICMP tab of the New VNE dialog
box:
•
Enable: Check this option to enable the use of the ICMP communication
protocol to verify that the device is reachable.
Note: The ICMP enable option can be enabled or disabled at any time.
If this option is enabled, the user must type in a polling rate (in seconds).
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6.8.5
Polling Tab
When customizing polling rates, special consideration should be given to the
following:
•
•
Fast polling rates (30 sec) provide high data accuracy
•
Fast change tracking (VC table, profile changes) and accurate flows
vs.
•
Constant polling generating high NE CPU utilization, high network
traffic, polling overlaps, and starvation for scheduled polling
Slow polling rates (30 min) will affect data accuracy
•
Slow change tracking, stuck flows, invalid information
vs.
•
Low NE and network utilization, complete polling cycles
Warning: Changing polling rates may result in excess traffic and Network
Element crashes.
The Polling tab enables the administrator to:
•
Associate a VNE with a previously created polling group.
•
Customize polling intervals for a VNE. Different polling intervals can be
defined, namely:
•
Status: Typically, would be the most frequently polled information
reflecting the current operational state of the element and its
components.
•
Configuration: Reflects more dynamic element configuration such
as forwarding, routing and switching tables.
•
System: Reflects element configuration that is less dynamic in
nature.
•
Topology: Reflects topology connections at different layers.
In addition, a polling interval can be configured for a class of devices, for
example, for all Cisco routers.
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Selecting the Polling tab displays the following dialog box:
The following radio buttons are displayed in the Polling Method area:
•
Group: The VNE inherits the polling rates from the polling group
selected in the dropdown list. By default, the VNE inherits the polling
rates from the Default polling group.
For more information about creating customized polling groups, refer to
Chapter 7, Managing Global Settings.
Note: The Polling Intervals and Topology areas are disabled when
Group is selected.
•
Instance: Enables the user to change the polling rates of any one of the
built-in polling intervals currently displayed in the dialog box tab.
Note: A polling rate that is not changed inherits its settings from the
group specified in the Group dropdown list.
Note: The Polling Intervals and Topology areas are enabled when
Instance is selected.
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Managing AVMs and VNEs
The following polling interval fields are displayed in the Polling Intervals
area:
•
Status: Sets the polling rate for status-related information, such as
device status (up/down), port status, admin status and so on. The
information is related to the operational and administrative status of the
Network Element. The default setting is 60 seconds.
•
Configuration: Sets the polling rate for configuration-related
information, such as VC tables, scrambling and so on. The default setting
is 360 seconds.
•
System: Sets the polling rate for system-related information, such as
device name, device location and so on. The default setting is
900 seconds.
The following fields are displayed in the Topology area:
6.9
•
Layer 1: Sets the polling rate of the topology process as an interval for
the Layer 1 counter. This is an ongoing process. The default setting is
9000 seconds.
•
Layer 2: Sets the polling rate of the topology process as an interval for
the Layer 2 counter. This process is available on demand. The default
setting is 9000 seconds.
Viewing and Editing a VNE’s Properties
Sheer DNA Manage enables the user to view and edit the properties of a
VNE in a Sheer DNA Unit, for example, the status and Telnet settings. For
more information about VNEs, refer to page 89.
To edit a VNE’s properties
1.
Select the DNA Servers branch in the Sheer DNA Manage tabbed dialog
box. The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM sub-branch
in the Tree pane.
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3.
Right-click on the required VNE in the VNEs Properties table in the
Workspace to display the shortcut menu, and select Properties or from
File menu, select Properties or in the toolbar click Properties. The VNE
Properties dialog box is displayed with the details of the selected VNE.
For more details about the fields displayed in the VNE Properties dialog
box, refer to page 91. In addition to the fields displayed when adding a
new VNE, the following fields and buttons are displayed:
•
VNE Status: The operational status, namely, Up, Down, Shutting
Down, Starting Up, or Unreachable. For more information on the
status of VNEs, refer to page 88.
• Start: Click this button to start the VNE if it is has been stopped
or is in maintenance mode. For more information, refer to page
•
Page 102
Stop: Click this button to stop the VNE if it is running or is in
maintenance mode.
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Managing AVMs and VNEs
•
6.10
Maintenance: Click this button to move the VNE to
maintenance mode, so that no alarms will be sent. If this is done
when the VNE has been stopped this has no meaning for the
VNE.
•
DNA Unit: The current Sheer DNA Unit that hosts the VNE.
•
AVM: The current AVM number, which changes according to the
Sheer DNA Unit selected to show one of the available AVMs on
that Sheer DNA Unit.
4.
Edit the details of the VNE, as required.
5.
Click Apply.
6.
Click OK. The VNE’s properties are edited accordingly.
Deleting a VNE
Sheer DNA Manage enables the user to delete a VNE(s) from a Sheer DNA
Unit and AVM. This process stops the VNE if it is running and deletes all
VNE references from the system and Golden Source. This includes the
registry information of the VNE in the specified Sheer DNA Unit. A VNE
that has been removed no longer appears in any future system reports.
Since all VNE information is deleted, adding the VNE again requires the user
to reinsert all the VNE information.
Note: A VNE that has static links configured cannot be deleted without first
removing all of the static links configured for the VNE. Dynamic links are
automatically removed.
To delete a VNE
1.
Select the DNA Servers branch in the Sheer DNA Manage window. The
DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM sub-branch
in the Tree pane.
3.
Right-click on the required VNE in the VNEs Properties table in the
Workspace to display the shortcut menu, and select Delete. A warning
message is displayed.
4.
Click Yes. A confirmation message is displayed.
5.
Click OK. The selected VNE is deleted from the AVM and is not
displayed in the VNEs Properties table.
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
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6.11
Changing the VNE’s State
Sheer DNA Manage enables the user to start or stop a VNE or move a VNE
to maintenance mode. Starting the VNE adds the VNE to the server
bootstrap. Stopping the VNE removes the VNE from the server bootstrap.
During normal operation, NEs often undergo maintenance operations and
planned outages (software upgrades, hardware modifications, cold reboots
and so on). The Sheer DNA platform supports such maintenance operations
without affecting the overall functionality of the active network. Neighboring
VNEs do not generate alarms that are related to links to or from the
maintained VNE.
While in maintenance state (temporary state) a VNE:
•
Does not change state on its own, unless the user explicitly (manually)
switches the VNE back to active state.
•
Never polls the device.
•
Does not report any alarms, including device reachability.
•
Maintains any existing links.
•
Does not fail on verification requests.
The VNE blocks all provisioning flows that run through the VNE. A device
in maintenance state can be disconnected and/or restarted, and this does not
result in link down alarms. Upon restart, the VNE receives only persistent
information, and returns to its latest known configuration, the topology links
are renewed automatically.
A VNE in maintenance state appears in Sheer NetworkVision displaying this
icon:
To change the VNE’s state
Page 104
1.
Select the DNA Servers branch in the Sheer DNA Manage window. The
DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM sub-branch
in the Tree pane.
3.
Select the required VNE in the in the VNEs Properties table in the
Workspace.
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Managing AVMs and VNEs
4.
Right-click to display the shortcut menu and select one of the following:
5.
6.12
•
Actions | Start or in the toolbar click
•
Actions | Stop or in the toolbar click
•
Actions | Maintenance or in the toolbar click
.
.
.
The state of the VNE changes based on your selection:
•
If the VNE is started a confirmation message is displayed. Click OK.
An Up status will eventually be displayed in the VNEs Properties
table in the Workspace. In the interim, you may see a Starting Up
status, when, for example, the Server is overloaded, or the VNE is
still being loaded.
•
If the VNE is stopped a confirmation message is displayed. Click
OK. A Down status will eventually be displayed in the VNEs
Properties table in the Workspace. In the interim, you may see a
Shutting Down status while various processes are closing down.
•
If the VNE is moved to maintenance mode a confirmation message is
displayed. Click OK. A Maintenance status is displayed in the VNEs
Properties table in the Workspace.
Moving Multiple and Single VNEs
Sheer DNA Manage enables the administrator to move single and/or multiple
VNEs between AVMs. The VNEs that are moved are unloaded. The status of
the VNEs is maintained after they are reloaded.
Note: Use standard Microsoft Windows mouse and keyboard techniques for
multiple selections in the appropriate Properties table displayed in the
Workspace.
To move a single VNE or multiple VNEs
1.
Select the DNA Servers branch in the Sheer DNA Manage window. The
DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required AVM sub-branch
in the Tree pane. The VNEs are displayed in the Workspace.
3.
Select a VNE or select multiple VNEs using the mouse and/or keyboard,
then right-click on the required VNE(s) in the Tree pane to display the
shortcut menu.
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4.
Select Move VNEs from the shortcut menu. The Move To dialog box is
displayed:
The Move To dialog box displays a tree-and-branch representation of the
selected Sheer DNA Server, its Units and AVMs, excluding the AVM in
which the VNE is currently located. The highest level of the tree displays
the Sheer DNA Server. The branches can be expanded and collapsed in
order to display and hide information.
5.
In the Move To dialog box, browse to and select the AVM (branch)
where you want to move the VNE(s).
6.
Click OK. The VNE is moved to its new location, and now appears
beneath the selected AVM (branch) in the VNEs Properties table in the
Workspace.
Note: The user can view the “moved” VNE by selecting the appropriate
AVM in the Tree pane of the Sheer DNA Manage window (such as
AVM 500-930000) and view the “moved” VNE in the VNEs Properties
table displayed in the Workspace.
Note: The VNE(s) that is moved is automatically unloaded and reloaded,
and its status is maintained.
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Managing Global Settings
7
Managing Global Settings
About this chapter:
This chapter describes how to define and manage the Sheer DNA Manage
global settings, including, client licenses, polling groups, protection groups
and customizing a message of the day (service disclaimer).
Managing Client Licenses, page 107, describes how to install and uninstall
a client license. In addition, it describes viewing client license properties.
Viewing DB Segments, page 112, describes how to view the database
segments table.
Customizing a Message of the Day, page 113, describes how to customize a
message of the day (service disclaimer).
Managing Polling Groups, page 114, describes how to customize and
modify polling groups using Sheer DNA Manage. In addition, it describes
how to view polling group properties.
Managing Protection Groups, page 121, briefly describes changing the
default setup of Sheer DNA Units by customizing protection groups
(clusters) and then assigning Sheer DNA Units to these groups.
For more information about the Global Settings branch, refer to page 33.
Note: The Global Settings branch can be expanded to view the required
sub-branch in the Tree pane.
7.1
Managing Client Licenses
Sheer DNA Client applications and BQL connectivity is based on installed
license files. Sheer DNA Manage enables the administrator to control and
monitor the number of Sheer DNA Client and BQL connections over a
limited or unlimited period of time based on the client licenses installed. Two
types of licenses are supported, namely, fixed (the number of installed users
are identified by user names or IP addresses or both) or floating (the number
of installed users operating concurrently).
For more information on the Client Licenses sub-branch, refer to page 34.
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To install a license
Page 108
1.
Select the Client Licenses sub-branch in the Sheer DNA Manage
window’s Tree pane. The Client Licenses table is displayed.
2.
Right-click the Client Licenses sub-branch to display the shortcut menu
and select New License, or from the File menu select New License or in
the toolbar click New License. The New Client License dialog box is
displayed.
3.
Copy the key from the file provided to you by Sheer Networks.
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Managing Global Settings
4.
Paste the information in the New Client License dialog box.
5.
Click OK. The new license information is displayed in the Workspace.
The administrator can uninstall the client license, for example, if it has
expired.
Note: The default license cannot be deleted.
To uninstall a license
7.1.1
1.
Select the Client Licenses sub-branch in the Sheer DNA Manage
window’s Tree pane. The Client Licenses sub-branch is displayed (refer
to page 108).
2.
Select the license that you want to uninstall in the Workspace pane.
3.
Right-click the license line in the table to display the shortcut menu and
select Delete, or click Delete in the toolbar. The license is uninstalled
and is no longer displayed in the Workspace of the Sheer DNA Manage
window.
Viewing Client License Properties
Sheer DNA Manage enables the user to view the properties of a license, for
example, the IP address and account name.
To view client license properties
1.
Select the Client Licenses sub-branch in the Sheer DNA Manage
window’s Tree pane. The Client Licenses table is displayed.
2.
Select the required license in the table.
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3.
Right-click to display the shortcut menu and select Properties, or from
the File menu select Properties or in the toolbar click Properties. The
Client License Properties dialog box is displayed.
The following fields are displayed at the top of the Client License
Properties dialog box:
•
Page 110
License Type: The license type, namely:
•
Fixed: The number of installed users are identified by user
names or IP addresses or both. For example, 5 users with the
user names a, b, c, d and e.
or
•
Floating: The number of installed users operating concurrently
(unspecified). For example, 5 users.
•
Client Type: The applications to which the user is authorized to
connect, namely, BQL and/or Sheer DNA Client applications.
•
User Count: The number of users allowed to operate the Sheer
DNA Client applications, as defined in terms of the license. The
exact number of users is displayed if the number is limited or 0
indicates an unlimited number of users.
•
Creation Date: The date when the license was implemented.
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Managing Global Settings
When the properties of the license are displayed in the Workspace table then
the properties of the allocated users are displayed as follows:
•
IP: Where the license is location based, (namely, limited to a specific
seat), this is the IP address from which logins will be allowed for this
license.
•
BQL Enabled: Indicates whether the license includes BQL connections
or just the Client applications.
•
Account Name: The username used to login.
4.
Click
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to close the Client License Properties dialog box.
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7.2
Viewing DB Segments
Sheer DNA Manage enables the administrator to view and monitor the
following:
•
Database segments’ storage allocation information
•
Database disk usage
•
Database growth
The information is automatically checked by the system.
To view the DB Segments
•
Select the DB Segments branch in the Sheer DNA Manage window’s Tree
pane. The DB Segments are displayed in the Workspace.
For more information about the columns displayed in the DB Segments table,
refer to page 37.
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Managing Global Settings
7.3
Customizing a Message of the Day
Sheer DNA Manage enables the user to define a message (service disclaimer)
that is displayed when the user logs in to any Sheer Client application
(optional). The user must accept the message before logging in. If the user
does not accept the message the user will be unable to login. The message
supports HTML format.
The message can be changed, as required; however, only one message is
applied at any given point in time.
To customize a message of the day
1. Select the Message of the Day branch in the Sheer DNA Manage
window’s Tree pane. The Title and Message fields are displayed in the
Workspace.
2.
3.
Enter a Title for the message.
Enter a Message.
Note: Abort and Continue buttons are displayed in the message dialog
box by default, so the message must be related to these actions. For
example, “Do you accept the terms of use in the Product License
Agreement? Click Continue to proceed or click Abort to cancel.”
4.
5.
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Click Save. A confirmation message is displayed.
Click OK. The message is displayed when the user logs in to any Sheer
Client application.
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To remove a message of the day
7.4
1.
Select the Message of the Day sub-branch in the Sheer DNA Manage
window’s Tree pane.
2.
In the Workspace, select the text in the Message area and press Delete
on your keyboard.
3.
Click Save. A confirmation message is displayed.
4.
Click OK. The message is no longer displayed when the user logs in to
the Sheer Client applications.
Managing Polling Groups
This section includes the following:
Polling Groups Overview, below, provides general information about
polling groups.
Customizing a Polling Group, page 116, describes how to customize new
polling groups using Sheer DNA Manage.
Modifying a Polling Group, page 118, describes how to modify existing
polling groups using Sheer DNA Manage and view polling group properties.
Deleting a Polling Group, page 119, describes how to delete polling groups.
Adaptive Polling, page 119, describes adaptive polling for VNEs.
7.4.1
Polling Groups Overview
The Sheer DNA Unit servers poll the NEs to discover and display accurate
and up-to-date information of the network. The system periodically triggers
polling at set intervals. The polling rates can be customized or optimized by
the administrator.
Sheer DNA provides the ability to fine-tune the frequency in which
information is retrieved from the managed elements in order to enable a high
degree of control and flexibility over the amount of network traffic used by
the various VNEs. Different polling intervals can be set for gathering the
information for:
Page 114
•
Status. Sets the polling rate for status-related information, such as device
status (up/down), port status, admin status and so on. The information is
related to the operational and administrative status of the NE.
•
Configuration. Sets the polling rate for configuration-related
information, such as VC tables, scrambling and so on.
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Managing Global Settings
•
System. Sets the polling rate for system-related information, such as
device name, device location and so on.
•
Topology Layer 1 Counters. Sets the polling rate of the topology
process as an interval for the Layer 1 counter. This is an ongoing process.
•
Topology Layer 2 Counters. Sets the polling rate of the topology
process as an interval for the Layer 2 counter. This process is available on
demand.
Note: All polling rates are expressed in seconds.
In addition to the defined polling intervals, the VNEs implement adaptive
polling ensuring that the element is not overloaded. Checking the device
CPU, may defer specific polls in order to avoid an additional load on the
managed element. For more information about adaptive polling, refer to
page 119.
The user can define polling profiles by setting customized polling intervals,
which can be applied to managed elements. The VNE then polls the network
element according to the preset values. This ensures polling of devices for
different information consistently and in accordance with technical and
business requirements.
Core devices can be assigned to a polling group (namely, all devices use the
same polling profile) that specifies a higher frequency for status but a lower
frequency for configuration-related information while edge or access devices
can be polled more frequently for system and configuration-related
information. Managed Network Service operators for example, can use
polling groups to reflect their agreement with customers so that premium
customer devices are polled more frequently than normal devices.
Sheer DNA includes the pre-configured polling group “default” for the
administrator’s convenience, which cannot be deleted. The default polling
group includes the following settings:
•
Status polling rate is 60 seconds.
•
Configuration polling rate is 360 seconds.
•
System polling rate is 900 seconds.
•
Layer 1 polling rate is 9000 seconds.
•
Layer 2 polling rate is 9000 seconds.
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7.4.2
Customizing a Polling Group
Sheer DNA Manage enables the user to create and customize new polling
groups. The new polling groups that are created can then be used when
defining a VNE. For more information, refer to the section Defining VNEs on
page 89.
Warning: Changing the polling rates may result in excess traffic and
Network Element crashes.
To create and customize a polling group
Page 116
1.
Select the Global Settings branch in the Sheer DNA Manage window’s
Tree pane. The Global Settings branch is displayed.
2.
Expand the Global Settings branch and select the required sub-branch in
the Tree pane.
3.
Select the Polling Groups sub-branch in the Sheer DNA Manage
window’s Tree pane. The Polling Groups table is displayed in the
Workspace.
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Managing Global Settings
4.
Right-click to display the shortcut menu and select New Polling Group
or from the File menu select New Polling Group or in the toolbar click
New.
The New Polling Group dialog box is displayed.
The following fields are displayed at the top of the New Polling Group
dialog box:
•
Name: The polling group name defined by the user.
•
Description: A description of the polling group.
5. Type the name and description of the polling group in the appropriate
fields.
The following fields are displayed in the Polling Intervals area:
•
Status: Sets the polling rate for status-related information, such as
device status (up/down), port status, admin status and so on. The
information is related to the operational and administrative status of
the Network Element.
•
Configuration: Sets the polling rate for configuration-related
information, such as VC tables, scrambling and so on.
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•
System: Sets the polling rate for system-related information, such as
device name, device location and so on.
The following fields are displayed in the Topology area:
•
Layer 1: Sets the polling rate of the topology process as an interval
for the Layer 1 counter. This is an ongoing process.
•
Layer 2: Sets the polling rate of the topology process as an interval
for the Layer 2 counter. This is process is available on demand.
6.
Define the new polling groups’ properties.
7.
Click OK. The new polling group is displayed in the Workspace.
The new polling group can be used when defining a new VNE. For more
information, refer to the section Defining VNEs on page 89.
7.4.3
Modifying a Polling Group
Sheer DNA Manage enables the user to modify a polling group and view
polling group properties.
To modify a polling group
1.
Select the Polling Groups sub-branch in the Sheer DNA Manage
window’s Tree pane. The Polling Groups table is displayed in the
Workspace.
2.
Right-click the required polling group in the Workspace to display the
shortcut menu, and select Properties or, from the File menu select
Properties or in the toolbar click Properties. The Update Polling Group
dialog box is displayed.
For more information on the fields displayed in the Update Polling
Group dialog box, refer to page 117.
3.
Edit the properties of the polling group as required.
Note: If any VNE is using this polling group then a warning message is
displayed.
4.
Click Apply.
5.
Click OK. The polling group’s settings are modified accordingly.
Note: Modifying the polling group settings affects all of the VNEs and
devices using the selected polling group.
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Managing Global Settings
7.4.4
Deleting a Polling Group
Sheer DNA Manage enables the user to delete polling groups.
To delete a polling group
1.
Select the Global Settings branch in the Sheer DNA Manage window’s
Tree pane and choose the Polling Groups sub-branch. The Polling
Groups are displayed in Polling Groups table in the Workspace.
2.
Right-click on the required polling group in the Polling Group table in
the Workspace to display the shortcut menu, and select Delete. A
warning message is displayed.
3.
Click Yes. A confirmation message is displayed.
4.
Click OK. The polling group is deleted from the Polling Group table.
Note: You cannot delete a Polling Group being used by another VNE.
7.4.5
Adaptive Polling
VNEs implement adaptive polling ensuring that the element is not overloaded
in addition to defined polling intervals. Checking the device CPU usage, may
defer specific polls in order to avoid an additional load on the managed
element.
When a VNE exceeds the maximum CPU usage threshold value an alarm is
sent and the VNE is automatically transferred to a slow polling interval,
namely, the VNE is polled less regularly.
When the CPU usage threshold values for the VNE fall below the clear
threshold value then an alarm is sent and the VNE returns to normal polling.
The values for any VNE can be customized through the system registry, for
example, the minimum and maximum CPU usage threshold values. When the
defined values are reached an alarm is sent. A clear value can also be defined
so that when the CPU usage threshold value drops below the maximum value
or rises above the minimum value a message is sent clearing the original
alarm. These values are defined in the Registry.
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In addition, the maximum and minimum tolerance levels can be customized
through the system registry. When a VNE is using normal polling and CPU
usage is high, Sheer DNA waits for the maximum CPU usage threshold value
(upper tolerance level) to be exceeded five times (default) and only then does
the VNE move to slow polling, as shown in the diagram below.
5 times above the
maximum threshold level
Normal polling
10 times above the
maximum threshold level
Slow polling
Maintenance
5 times below the
minimum threshold level
If the VNE is using slow polling after it has been checked five times, then the
VNE is checked a further 10 times (default) to see whether the CPU usage is
still high. If this is the case, the VNE is moved to maintenance mode. Once
the VNE is in maintenance mode the user must manually set the VNE back to
normal polling, (it does not automatically return to regular polling). Once the
VNE is in maintenance mode the device is not polled and no alarms are
reported.
In the example below CPU usage is polled 5 times and it is above the
maximum value, so the VNE moves to slow polling. The CPU usage is the
polled a further 10 times and it is above the maximum value, so the VNE
moves to maintenance mode.
1. CPU usage is polled 5 times
(and above the max. value)
3. CPU usage is polled
a further 10 times
(and above the max. value)
Maximum
threshold
value
Normal polling
2. VNE moves to slow polling
4. VNE moves to maintenance
Minimum
threshold
value
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Managing Global Settings
When the VNE is using slow polling and CPU usage drops to a regular level
(or below the minimum value), Sheer DNA waits for the VNE to drop below
the maximum CPU usage threshold value twice (default) and only then does
the VNE return to normal polling.
In the example below CPU usage is polled 5 times and it is above the
maximum value, so the VNE moves to slow polling. The CPU usage then
drops to a regular level (or below the minimum value). The CPU usage is the
polled again twice and it is below the maximum value, so the VNE returns to
normal polling.
1. CPU usage is polled 5 times
(and above the max. value)
Maximum
threshold
value
Normal polling
2. VNE moves to slow polling
4. VNE returns to normal polling
Minimum
threshold
value
3. CPU usage is polled twice
(and below the max. value)
If CPU usage is high and a slow polling interval is used and the AVM goes
down and is then restarted the AVM remembers its previous polling interval
and when the AVM is restarted the AVM will make use of the same polling
interval that it was using before it went down.
7.5
Managing Protection Groups
By default all the Sheer DNA Units in the Sheer DNA Fabric belong to one
big cluster, namely, the default-pg protection group. The administrator can
change the default setup of the Sheer DNA Units by customizing protection
groups (clusters) and then assigning Sheer DNA Units to these groups.
For more information, refer to the Cisco Active Network Abstraction High
Availability User’s Guide.
Sheer DNA Manage enables the user to create new protection groups. The
new protection groups that are created can then be used when defining a
Sheer DNA Unit. For more information, refer to page 71.
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To create a protection group
1.
Select the Global Settings branch in the Sheer DNA Manage window’s
Tree pane. The Global Settings branch is displayed.
2.
Expand the Global Settings branch and select the required sub-branch in
the Tree pane.
3.
Select the Protection Groups sub-branch in the Sheer DNA Manage
window’s Tree pane. The Protection Groups table is displayed in the
Workspace.
4.
Right-click the Protection Groups sub-branch, and select New
Protection Group from the shortcut menu, or from the File menu select
New Protection Group or in the toolbar, click New.
The New Protection Group dialog box is displayed.
The following fields are displayed at the top of the New Protection
Group dialog box:
5.
•
Name: The polling group name defined by the user.
•
Description: A description of the polling group.
Type the name and description of the polling group in the appropriate
fields and click OK. The Workspace displays details of the new
Protection Group and all of the currently defined protection groups in the
Protection Groups table.
Note: The default-pg protection group displayed in the Workspace is the
default protection group (cluster), to which, by default, all the Sheer
DNA Units in the Sheer DNA Fabric belong.
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Managing Global Settings
7.5.1
Checking Assignment of Protection Groups to DNA Units
The administrator can view the protection groups to which the Sheer DNA
Units are currently assigned. In so doing, the administrator can, at a glance,
check that the configuration or assignment matches the initial deployment
plan.
To check the Sheer DNA Units-protection groups assignments
•
7.5.2
Select the DNA Servers branch in the Sheer DNA Manage window’s Tree
pane. The properties of the DNA Servers branch are displayed in the
Workspace, including the details of the protection group to which each
Sheer DNA Unit and standby Sheer DNA Unit currently belongs.
Changing Protection Groups for DNA Units
The administrator can easily and quickly change the protection group to
which a Sheer DNA Unit has been assigned.
To change the protection group setting of a Sheer DNA Unit
1.
Select the DNA Servers branch in the DNA Manage window’s Tree pane.
The DNA Servers branch is displayed.
2.
Expand the DNA Servers branch and select the required DNA Unit
sub-branch.
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3.
Right-click on the required Sheer DNA Unit to display the shortcut menu
and select Properties,
or
In the toolbar click
or
From the File menu select Properties. The DNA Unit Properties dialog
box is displayed.
The Protection Group dropdown list displays the currently customized
protection groups. For more information about defining a new protection
group, refer to the section Managing Protection Groups on page 121.
The Enable Unit Protection checkbox enables the administrator to
define whether a Sheer DNA Unit is enabled (checkbox is selected) for
high availability.
Note: It is recommended that the user does not disable this option.
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4.
Select the protection group from the Protection Group dropdown list to
which you want to assign the Sheer DNA Unit.
5.
Click OK to save the updated protection group settings for the selected
Sheer DNA Unit. The Sheer DNA Manage window is displayed.
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Managing Global Settings
7.5.3
Viewing and Editing Protection Group Properties
The administrator can view the properties of a protection group, for example,
the description. In addition, the administrator can edit the description of the
protection group.
To view and edit a protection group’s properties
1.
Select the Global Settings branch in the DNA Manage window’s Tree
pane. The Global Settings branch is displayed.
2.
Expand the Global Settings branch and select the Protection Groups
sub-branch.
3.
Select the required protection group in the DNA Manage window’s
Workspace.
4.
Right-click to display the shortcut menu and select Properties,
or
In the toolbar click
,
or
From the File menu select Properties.
The Properties dialog box is displayed.
5. View the properties of the protection group and/or edit the description.
6. Click OK. The Sheer DNA Manage window is displayed.
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7.5.4
Deleting a Protection Group
Sheer DNA Manage enables the user to delete protection groups.
Note: Check that you are deleting the correct protection group, as there may
be a DNA Unit using the protection group.
To delete a protection
1.
Select the Global Settings branch in the DNA Manage window’s Tree
pane. The Global Settings branch is displayed.
2.
Expand the Global Settings branch and select the Protection Groups
sub-branch.
3.
Select the required protection group in the DNA Manage window’s
Workspace.
4.
Right-click to display the shortcut menu and select Delete,
or
In the toolbar click
.
The protection group is deleted.
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Managing Links
8
Managing Links
About this chapter:
This chapter describes how to add and remove a static link between two ports
of two Network Elements in the network. These static links will override any
existing auto-discovered topology in the system. A static link is identical in
all respects to a link that was auto-discovered.
Static links can be viewed using the Topology branch and in the device
topology static key in the relevant Golden Source AVM .xml file.
Creating a Static Link, page 127, describes how to add a static link between
two ports of two Network Elements in the network.
Removing a Static Link, page 131, describes how to delete a dynamic or
static link or all of the links between devices.
8.1
Creating a Static Link
Sheer DNA Manage enables the user to create a static link between devices
by selecting the two end ports from the device’s physical inventory. To create
a static topological link the user needs to supply the exact location of the two
end ports (at both ends of the link). The physical hierarchy in which the port
is located defines the location of a port, as follows:
Device →[shelf] → module → [submodule] → port
Note: The link is bi-directional and therefore only needs to be added once.
The new link is validated after the two ports are selected, but before the link
is added. Validation checks the following:
•
The similarity of the connector port types (for example, RJ45 on both
sides)
•
Layer 2 technology type (for example, ATM OC-3 on both sides)
•
The physical layer
•
The operation status of both ports
•
If one of the ports is part of another link
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To create a new static link
1.
Select the Topology branch in the Sheer DNA Manage window. The
Topology branch is displayed.
Note: Any changes made in the Topology branch are saved automatically
and are registered immediately in the Sheer DNA.
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Managing Links
2.
Right-click to display the menu and select New Static Link or from File
menu select New Static Link or in the toolbar click New Static Link.
The New Static Link dialog box is displayed.
The A Side and Z Side dropdown lists enable the user to select the
devices and required port on which they want to create the static link.
When a device is selected from the dropdown list the physical inventory
of the device is displayed in the related area of the dialog box.
3.
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From the A Side and Z Side dropdown lists select a device. The physical
inventory of each device is displayed in the related area of the dialog
box.
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4.
Expand the tree and select the A Side and Z Side port of each device.
For more information about the icons and severity displayed in this
dialog box, refer to the Cisco Active Network Abstraction NetworkVision
User’s Guide.
5.
Click Create. The link is validated and a confirmation message is
displayed.
Note: The Create button is only enabled when A Side and Z Side ports
are selected.
Note: A warning message is displayed if:
•
One of the validation checks fails
•
The operation status of one port is Up and the other port is Down
•
The ports selected are not of the same type
•
The Layer 2 technology type is not the same
•
If one of the ports is part of another link
Click No to cancel the connection.
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Managing Links
6.
Click Close. The New Static Link dialog box is closed and the newly
created link between the two devices is displayed in the Workspace.
Note: The new link is created with the rule A Side < Z Side
lexicographically. For example, if the user selected A Side = PE-West
and Z Side = PE-East. The link that is created and displayed in the table,
will be A Side = PE-East and Z Side = PE-West.
8.2
Removing a Static Link
A dynamic or static link between the devices can also be deleted from a
Sheer DNA. A dynamic link is one that is detected by Sheer DNA and
connected automatically. A static link is one that is manually entered by the
user.
To remove a link
1.
Select the Topology branch in the Sheer DNA Manage window. The
Topology branch is displayed.
2.
Select the required link in the Workspace.
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
3.
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Right-click to display the menu and select Delete or in the toolbar
click . The selected link is deleted and is no longer displayed in the
Workspace.
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Managing Workflows
9
Managing Workflows
About this chapter:
This chapter briefly describes the Workflow Engine branch in the Sheer DNA
Manage application.
About the Sheer Workflow Editor, below, provides an overview of the
Sheer Workflow Editor.
Workflow Engine Branch, page 134, briefly describes the Workflow Engine
sub-branches, namely, Templates and Workflows.
For more information about the Workflow Engine branch menus and toolbar,
refer to page 52.
9.1
About the Sheer Workflow Editor
The Sheer Workflow Editor enables the creation and execution of logical
flows of atomic tasks (activation commands), including, complex rollback
scenarios. This logic enables the user to define relationships between tasks,
including sequences, branches, failure procedures, scheduling, and access to
Sheer Commands as well as Sheer’s Information Model. The Workflow
Editor can interface with an external system such as an order management
system in order to create a full solution for service provisioning, which is
user-customizable and user-extendable.
The Sheer Workflow Editor is a GUI-oriented process management tool that
acts as a powerful visual design and execution tracing tool for defining and
deploying activation workflows (a workflow consists of several tasks
grouped together and arranged in a hierarchy). Workflow management is
supported in runtime and includes a runtime GUI control console. The easyto-use GUI is flexible enough to enable complex flows to be created with a
minimum of effort. For information about launching and working with the
Sheer Workflow Editor, refer to the Cisco Active Network Abstraction
Workflow User’s Guide.
All workflows are stored on the Sheer DNA Gateway. The Workflow Editor
engine resides on the Sheer DNA Gateway,
using AVM 66.
Note: In order to use workflows AVM 66 must be up and the relevant license
must be installed.
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After a workflow is deployed, it is accessible via Sheer DNA Manage for
viewing properties and status. Deployed workflows can be invoked via the
Sheer DNA API using BQL.
9.2
Workflow Engine Branch
The Workflow Engine branch in Sheer DNA Manage enables the user to
manage the workflow templates and running workflows in runtime.
Note: The Workflow Engine branch is only enabled upon installation of the
relevant license.
The Workflow Engine branch includes the following sub-branches:
•
Templates: Displays a list of the deployed workflow templates and
enables the user to view the properties of the workflow template.
•
Workflows: Displays a list of the running or completed workflows and
enables the user to view and alter their current status.
For more information about the Workflow Engine branch functionality, refer
to the Cisco Active Network Abstraction Workflow User’s Guide.
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Managing Sheer DNA Security
10
Managing Sheer DNA Security
About this chapter:
This chapter describes how Sheer DNA implements a two-dimensional
security engine combining a role-based security mechanism with scopes
(groups of Network Elements) that are granted to users. In addition, it
describes managing users in the Sheer DNA platform, including, defining
users and passwords.
Security Overview, page 135, describes the security related concepts and
terms used in the Sheer DNA Manage application and throughout this guide.
Customizing Security Flow, page 139, describes the steps required to
customize security.
Creating Scopes, page 140, describes how to group a collection of managed
Network Elements together in Sheer DNA Manage. In addition, it describes
how to edit the Network Elements included in a scope, view the scope’s
properties and how to delete a scope.
Creating New Sheer DNA User Accounts, page 143, describes how to
create permitted users for the current client station.
Granting or Editing a User’s Rights, page 146, describes how to manage
general user account information and the list of scopes assigned to the user as
well as the security access roles per scope and assign maps to a user.
Deleting a Sheer DNA User Account, page 152, describes how to delete a
Sheer DNA user account from the list of users.
Changing a User’s Password, page 152, describes how the administrator
can redefine the user’s password. In addition, it describes how the current
user can change the user password.
10.1
Security Overview
This section describes the security related concepts and terms used in the
Sheer DNA Manage application and throughout this guide.
10.1.1 Scopes
Sheer DNA Manage enables the administrator to group a collection of
managed Network Elements together in order to enable the user to view
and/or manage the NEs based on the user’s role or permission.
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After the user is allocated a scope (list of Network Elements) and a role, the
user can then perform various activities on the Network Elements included in
the scope, as follows:
•
Activate services.
•
Manage alarms in Sheer NetworkVision.
•
Manipulate graphical Network Elements in the map.
•
View Network Element, inventory, and link properties.
•
Add Network Elements to the map view.
•
Manipulate business tags per Network Element.
•
Manage advanced options, for example, show counters, show utilization,
and refresh.
By default Sheer DNA includes a pre-configured scope for the
administrator’s convenience, which cannot be edited or deleted, namely, All
Managed Elements. This default scope includes all of the managed Network
Elements. A user granted the All Managed Elements scope can view and
manage all the Network Elements all the time according to the user’s role
assigned to the scope.
10.1.2 Default Permissions
The Role or default permission only applies to the activities that are related to
GUI functionality, not the activities related to Network Elements, including:
•
Application login.
•
Manage alarms in Sheer NetworkVision.
•
Manage maps: Creating, deleting, and opening.
•
Map manipulation: Arrange map, including, aggregations, adding NEs,
NEs placement in map, map background and so on.
•
Business tag management.
10.1.3 Security Access Roles
Sheer DNA provides five pre-defined security access roles that can be
granted to a user in order to enable system functions:
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•
Administrator: Manage the system configuration, and security. Sheer
DNA Manage supports multiple administrators.
•
Configurator: Activate services, and configure the network.
•
Operator Plus: Manage the alarm life cycle.
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Managing Sheer DNA Security
•
Operator: Configure business tags and manage most day-to-day
operations.
•
Viewer: View only access to the network and to non-privileged system
functions.
Note: Roles can be granted per scope or at an application level (namely, all
the activities that are related to GUI functionality, not the activities related to
devices). Users can have different roles for different scopes. Role
functionality is incremental.
The table below illustrates the functionality per role according to the default
permission and Scope based functionality:
Role
Default Permission Based
Functionality
Administrator
Platform management:
• Manage DNA Servers,
AVMs, transport and VNEs
• Global setting: Managing
polling groups, protection
groups, client licenses and
service disclaimers
• View DB segments
• Create/delete scopes
• Manage user accounts
• Manage static topology links
• Manage VNEs from Sheer
DNA Manage or Sheer
NetworkVision
Map management:
• Open, edit, delete all user
maps
Configurator
Map management:
Activation services:
• Create maps
• Allow activation commands
per managed NE
Advanced tools:
• Ping and Telnet a NE directly
from the client
• Enable/disable port alarms
• Sheer DNA Command
Builder
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Scope Based Functionality
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Role
Default Permission Based
Functionality
Scope Based Functionality
OperatorPlus
Map management:
• Create new maps and add
NEs
• Edit/delete/rename maps
• Save maps
Map manipulation:
• Create/break aggregations
• Change map layout
• Set background image
• Create business links
Alarm management:
• Acknowledge, remove, and
clear alarms that belong to
the NEs within a user’s
scope that have the
OperatorPlus role
Map manipulation:
• Create business tags for NEs
Display network information:
• Display path tool traffic,
rates, drops or any dynamic
data
Operator
Map manipulation:
• Create/delete business tags
Application:
• Open EventVision
Application:
• Login to NetworkVision,
EventVision
• Change user password
• View the Device List
• View map
• View link properties
• Use table filter
• Export from any table
Display network information:
• Refresh port information
from NE
Viewer
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Display network and business
tag information:
• View alarm list, alarm
properties, and find alarms
• Find and view attachments
• View NE properties and
inventory
• Calculate and view affected
parties
• Open port utilization graph
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Managing Sheer DNA Security
10.2
Customizing Security Flow
The flow below describes the steps required to customize security using
Sheer DNA Manage and the order in which they must be performed.
Step 1: Install a license
Step 2: Define a scope(s)
Step 3: Define Sheer DNA
user accounts
Step 4: Grant scopes and
roles to a user(s)
Step 1: Install a license: Enables the administrator to control and monitor
the number of Sheer DNA Client and BQL connections over a limited or
unlimited period of time based on the client licenses installed. For more
information, refer to Section 7.1, Managing Client Licenses.
Step 2: Define a scope: Enables the administrator to group a collection of
managed Network Elements together in order to enable the user to view
and/or manage the Network Elements based on the user’s role. For more
information, refer to Section 10.3, Creating Scopes.
Step 3: Define Sheer DNA user accounts: Enables the administrator to
define and manage user accounts. For more information, refer to
Section 10.4, Creating New Sheer DNA User Accounts.
Step 4: Grant scopes and roles to a user: Enables the administrator to
manage general user account information and the list of scopes assigned to
the user as well as the security access roles per scope. For more information,
refer to Section 10.5, Granting or Editing a User’s Rights.
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10.3
Creating Scopes
Sheer DNA Manage enables the administrator to group a collection of
managed Network Elements together in order to enable the user to view
and/or manage the Network Elements based on the user’s role or permission.
Once a scope is created it can be assigned to a user. Multiple scopes can be
assigned to a single user and a single scope can be assigned to multiple users.
When the scope is assigned to a user, the administrator is required to provide
the user with security access roles as well, namely, to define the user’s role
within the assigned scope. For more information, refer to page 146.
To create a scope
1.
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Select the Scopes branch in the Sheer DNA Manage window. The Scopes
branch is displayed.
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Managing Sheer DNA Security
2.
Right-click to display the menu and select New Scope or from File menu
select New Scope or in the toolbar click New Scope. The New Scope
dialog box is displayed.
The following fields are displayed in the New Scope dialog box:
• Scope: The name of the scope (unique).
• Available Devices: A list of all of the available devices.
• Active Devices: A list of all of the active devices defined for the
scope.
The following buttons are displayed in the New Scope dialog box:
Adds all available devices to the Active Devices list.
Adds the active device to the Active Devices list.
Removes an active device from the scope.
Removes all active devices from the scope.
3.
Enter a name for the scope in the Scope field.
4.
Select a device/s from the list of Available Devices and click
add the device/s to the list of Active Devices in the scope.
to
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
5.
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Click OK. The scope is saved and is displayed in the Workspace.
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10.3.1 Editing a Scope and Viewing a Scope Properties
Sheer DNA Manage enables the administrator to edit the details of a scope
and to view the scope’s properties.
To edit a scope or view scope properties
1.
Select the Scopes branch in the Sheer DNA Manage window’s Tree pane.
The Scopes table is displayed in the Workspace.
2.
Select the scope that you want to edit or view in the Workspace.
3.
Right-click the required scope to display the shortcut menu, and select
Properties, or from File menu select Properties or in the toolbar, click
Properties. The Properties dialog box is displayed.
For more information about the Properties dialog box, refer to page 141.
4.
Edit and/or view the properties as required.
5.
Click OK. The Properties dialog box is closed.
10.3.2 Deleting Scopes
A device scope (lists of devices or Network Element groups) can also be
deleted.
Note: When a scope is deleted, it is deleted from all users who have the
assigned scope.
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Managing Sheer DNA Security
To delete a scope
1.
Select the Scopes branch in the Sheer DNA Manage window’s Tree pane.
The Scopes table is displayed in the Workspace.
2.
Select the scope that you want to delete in the Workspace.
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
3.
10.4
Right-click the required scope to display the shortcut menu, and select
Delete. The scope is deleted and is not displayed in the Workspace.
Creating New Sheer DNA User Accounts
The Users branch enables the administrator to define and manage user
accounts. This includes, managing general user information as well as
security access rights, and forced login changes, as required. The
administrator can also monitor the user’s last login time.
Note: Creating a new user using the New User dialog box, is only part of the
“creating-user” process. Granting user security rights to operate Sheer DNA
applications are defined in the User Properties dialog box. For more
information, refer to Section 10.5, Granting or Editing a User’s Rights.
The new user is created with a set of pre-defined system defaults, as follows:
•
No scopes are assigned to the user
•
The number of connections is unlimited
•
The password must be changed every 30 days
Note: Sheer NetworkVision has the following pre-configured password
defaults:
•
The maximum length of the user name and full name is 20 characters.
•
The minimum length of the user password is 8 characters.
•
The maximum length of the password is 20 characters.
•
The minimum number of digits that must be included in the user
password is 1.
•
The user name cannot contain any special characters like * # ? and so on.
•
The password cannot contain the User Name or vice versa.
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To define a user account
1.
Select the Users branch in the Sheer DNA Manage window. The Users
branch is displayed.
2.
Right-click to display the menu and select New User or from File menu
select New User or in the toolbar click New User. The New User dialog
box is displayed.
Note: Clicking
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displays the current password rules.
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Managing Sheer DNA Security
The following fields are displayed in the New User dialog box:
•
User Name: The new user’s name used for logging in (mandatory).
Note: The user name is unique and a maximum of 20 characters
may be used. Special characters may not be used.
•
Full Name: The full name of the user (optional).
Note: A maximum of 20 characters may be used, but no special
characters may be used.
•
•
Description: A free text description of the user (optional).
Password: Enter the new password (mandatory).
Note: A minimum of 8 characters must be used, including, at least
1 digit. The maximum length of the user password is 20 characters.
•
Confirm Password: Enter the new password again to confirm the
new password (mandatory).
The Role dropdown list enables the administrator to define the security
access role (permission) for the new user.
Note: The permission only applies to activities or actions that are not
related to a NE (Network Element). For more information on the
functionality that a user can perform, refer to the section Security Access
Roles on page 136.
When a new user is defined as an Administrator this user can perform
all administrative actions, including opening all maps, working with all
scopes and managing the system using Sheer DNA Manage. All of this is
performed with the highest privileges. Sheer DNA Manage supports
multiple administrators. Access rights do not need to be defined for an
administrative user. For more information, refer to page 136.
The Force Password Change at Next Login checkbox is selected by
default and forces the user to change the user password at next login.
The following button is displayed in the New User dialog box:
•
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Create: Adds the new user to the list of Sheer DNA Client users and
the new user name is displayed in the Workspace.
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10.5
3.
Enter a unique User Name (mandatory).
4.
Enter a Full Name and Description (optional).
5.
Enter a Password (mandatory).
6.
Enter the password again in the Confirm Password field (mandatory).
7.
Select a security access role for the new user from the Role dropdown
list.
8.
Click Create. The new user name and default security access role are
displayed in the Workspace.
Granting or Editing a User’s Rights
Once the administrator has defined the scopes and the new user accounts,
Sheer DNA Manage enables the administrator to manage or edit general user
account information and the list of scopes assigned to the user, the security
access roles per scope, and assign maps to a user.
Note: A user may have different security access roles for different scopes,
and maps.
In addition, the administrator can view the properties of a user.
10.5.1 General User’s Rights
Sheer DNA Manage enables the administrator to manage or edit general user
account information. In addition, the administrator can view the properties of
a user.
To grant or edit a user’s rights
Page 146
1.
Select the Users branch in the Sheer DNA Manage window’s Tree pane.
The DNA Users table is displayed in the Workspace.
2.
Right-click the required user to display the shortcut menu.
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Managing Sheer DNA Security
3.
From the shortcut menu, select Properties. The Properties dialog box is
displayed with the General tab selected by default.
The General tab contains general user account information and the
following fields are displayed:
•
User Name: The current user’s name. The user name cannot be
modified.
•
Last Login: The date and time that the user last logged in.
•
Full Name: The full user name.
•
Description: A description of the user.
The following checkboxes are displayed in the General tab of the
Properties dialog box:
•
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Enable Account: Select this option to enable the user account or
uncheck to disable the user account. The user account is
automatically locked when the number of logins defined is exceeded
(the Limit Connections to option is selected). An administrator can
manually lock or unlock a user’s account at any time. A user whose
account is locked cannot login to the system.
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•
•
•
4.
Limit Connections to: The number of instances of the Sheer DNA
Client applications that the user can access at any one time. For
example, if the number of connections is limited to 10, the user can
have 5 instances of Sheer DNA Manage and 5 instances of Sheer
NetworkVision open at the same time. If the user then tries to open
an instance of Sheer EventVision the user will be unable to do so.
Force Password Change After: The number of days after which a
user is forced to change their password.
Force Password Change at Next Login: Select this option to force
the user to change the user password at next login. The administrator
can define this option at any time.
Edit the general properties as required.
10.5.2 User’s Security Rights
To define a User’s default security rights, you use the Security tab in the User
Properties dialog box.
To edit a user’s default security rights
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1.
Select the Users branch in the Sheer DNA Manage window’s Tree pane.
The DNA Users table is displayed in the Workspace.
2.
Right-click the required user to display the shortcut menu, and select
Properties. The User Properties dialog box is displayed.
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Managing Sheer DNA Security
3.
Select the Security tab. The following tab is displayed.
The Security tab controls the user’s capability to view and manage the
application, and Network Elements by granting the user scopes and
security access roles. By default a new user is assigned a Viewer security
access role. The following columns are displayed in the table in the
Security tab of the Properties dialog box:
• Scope Name: The name of the scope.
• Security Level: The security access role defined for the scope. For
more information about security access roles, refer to page 136.
The following buttons are displayed in the Properties dialog box when
the Security tab is selected:
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•
Add: Adds the new scope.
•
Remove: Deletes the selected scope from the user’s active rights.
•
Edit: Edits the selected permission of the user.
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4.
Click Add to add the scope to the Active Rights of the user. The
Security Level dialog box is displayed.
The following area is displayed in the Security Level dialog box:
•
Available Scopes: Lists all of the predefined and unassigned scopes.
The following dropdown list is displayed in the Security Level dialog
box:
•
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Security Level: Displays the security access roles for the defined
scopes. For more information about security access roles, refer to
page 136.
5.
Select a scope from the Available Scopes list.
6.
Select the required security access role from the Security Level
dropdown list.
7.
Click OK. The scope is added to the list of Active Rights in the
Security tab of the User Properties dialog box.
8.
Click Apply/OK. The Properties dialog box is closed.
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Managing Sheer DNA Security
10.5.3 Map User Permissions
Sheer DNA Manage enables the administrator to assign a map(s) to the user.
When the user logs in to Sheer NetworkVision, the user can only open and
manage the map(s) assigned to the user by the administrator.
To assign maps to a user
1.
Select the Users branch in the Sheer DNA Manage window’s Tree pane.
The DNA Users table is displayed in the Workspace.
2.
Right-click the required user to display the shortcut menu, and select
Properties. The User Properties dialog box is displayed, as shown on
page 149.
3.
Select the Maps tab. The Maps tab is displayed.
The Maps tab is divided into two parts:
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•
The left hand side displays a list of all of the available maps in the
database that have not been assigned to the user.
•
The right hand side displays all the maps that have been assigned to
the user, and which the user can open and manage in Sheer
NetworkVision.
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The following buttons are displayed between the available maps and
assigned maps lists in the Map tab:
Moves the selected map to the Assigned Maps list.
Move the entire available map list to the Assigned Maps list.
Removes a selected map from the assigned map list to the
Available Map list.
Removes the entire assigned map list to the Available Map
list.
4.
Select a map/s from the list of Available Maps and click
the map to the list of Assigned Maps to the user.
to add
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
10.6
5.
Select and move maps between the two lists, as required, using the
appropriate buttons.
6.
Click OK to confirm the user’s assigned map(s).
Deleting a Sheer DNA User Account
An administrator can also delete a Sheer DNA user account.
To delete a user account
1.
Select the Users branch in the Sheer DNA Manage window’s Tree pane.
The Users table is displayed in the Workspace.
2.
Select the user that you want to delete in the Workspace.
Note: Multiple rows can be selected using the standard Microsoft®
Windows selection keys.
3.
10.7
Right-click the required user to display the shortcut menu and select
Delete. The selected user is deleted and is not displayed in the
Workspace.
Changing a User’s Password
Sheer DNA Manage enables the administrator to change the user’s password
at any time. When this happens the user is usually forced to change the
password at the next login.
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Managing Sheer DNA Security
In addition, the current user can also initiate a change of password, where the
user will be required to enter the old password in order to validate the new
password.
To change a user’s password (administrator)
1.
Select the Users branch in the Sheer DNA Manage window’s Tree pane.
The Users table is displayed in the Workspace.
2.
Select the user in the Workspace whose password you want to change.
3.
Right-click the required user to display the shortcut menu and select
Change Password. The Change Password dialog box is displayed.
Note: Clicking
displays the password rules.
4.
Enter the new password in the Password and Confirm Password fields.
5.
Click OK. A confirmation message is displayed.
6.
Click OK. The Change Password dialog box is closed.
Sheer DNA Manage enables the current user to also initiate a change of
password.
To change the current user’s password
1.
From the Tools menu select Change User Password. The Change User
Password dialog box is displayed.
Note: Clicking
2.
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displays the password rules.
Enter the old password in the Old Password field.
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Page 154
3.
Enter the new password in the New Password and Confirm Password
fields.
4.
Click OK. A confirmation message is displayed.
5.
Click OK. The Change User Password dialog box is closed.
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Utility Scripts
A
Utility Scripts
About this appendix:
This appendix describes the Sheer DNA utility scripts.
Restarting Sheer DNA Gateway, below, describes how to restart the Sheer
DNA Gateway from the Unix command line.
Restarting a Sheer DNA Unit, page 155, describes how to restart a Sheer
DNA Unit from the Unix command line.
Executing a Command on all Sheer DNA Units, page 156, describes the
script used to execute a given command on all of the Sheer DNA Units.
A.1
Restarting Sheer DNA Gateway
The user can restart the Sheer DNA Gateway from the Unix command line.
To restart the Sheer DNA Gateway
1.
Open a Telnet session to the Sheer DNA Gateway machine and login to
the machine.
2.
Execute the script:
~sheer/Main/mvm.csh
Note: When the Sheer DNA Gateway is restarted, all of the clients are
reconnected.
Note: The Server status can be verified using Sheer DNA Manage.
A.2
Restarting a Sheer DNA Unit
Restarting a Sheer DNA Unit machine kills all of the AVM processes on the
machine and restarts them.
Given that the system saves part of its information within the process
memory, restarting a Sheer DNA Unit will cause some of the information to
disappear. It will, therefore, take as long as the longest full polling cycle for
the system to recover all of the information that was stored in the process
memory prior to the restart. Data that was saved in persistent storage before
restarting will be available immediately.
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Restarting a machine may cause some of the VNEs running on the machine
to be reported as unreachable. This is due to handshake protocols with the
Sheer DNA Unit that will fail due to the unavailability of the VNEs.
Restarting a machine will abort all active queries, flows and transactions that
are currently being executed within the VNEs that run on the restarted Sheer
DNA Unit.
To restart a Sheer DNA Unit
1.
Open a Telnet session to the Sheer DNA Unit machine and login to the
machine.
2.
Execute the script:
~sheer/Main/mvm.csh
A.3
Executing a Command on all Sheer DNA Units
The script rall.csh is a utility used to execute a given command on all of the
Sheer DNA Units (not on the Sheer DNA Gateway).
~sheer/Main/rall.csh <script>
Where <script> is the script name.
The script example below will restart all the Sheer DNA Units (not the Sheer
DNA Gateway).
~sheer/Main/rall.csh mvm.csh
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Golden Source Registry
B
Golden Source Registry
About this appendix:
This appendix provides details of the Golden Source Registry.
The Golden Source registry is the master registry responsible for
maintaining, distributing, and updating registry configuration files to all of
the Sheer DNA Units and the Sheer DNA Gateway server. The master copy
of the Golden source files is centrally located on the Sheer DNA Gateway
server:
~sheer/Main/registry/ConfigurationFiles
•
/0.0.0.0 is the template folder used by the system.
•
/127.0.0.1 is the Sheer DNA Gateway sub-folder.
•
A sub-folder for each of the Sheer DNA Units.
These sub-folders are created during the installation procedure. Each subfolder contains the relevant registry .xml files. These files can either be edited
manually using Telnet and an editor or using the Sheer Registry Tool.
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Cisco Active Network Abstraction Administrator’s Guide, 3.5
The screen below displays the registry files for each Sheer DNA server and
the Golden Source hives.
The Golden Source mechanism enables consistent management of the entire
system. Each Sheer DNA Unit and Sheer DNA Gateway has its own set of
registry configuration files and parameters. The registry files are replicated
automatically during the installation of the Sheer DNA Unit and Sheer DNA
Gateway.
Each time a Sheer DNA Unit and Sheer DNA Gateway process starts it
accesses the Golden Source and retrieves the updated configuration. All
additions and changes to the Golden Source are automatically sent to the
relevant Sheer DNA Servers. Each Sheer DNA Unit keeps a local copy of its
relevant registry files. When a Sheer DNA Unit cannot connect to the Sheer
DNA Gateway this local copy is used.
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Ports Used by Sheer DNA
C
Ports Used by Sheer DNA
About this appendix:
This appendix provides a list of the ports used by the various Sheer DNA
Server and Client applications.
Scope
Protocol Port
Sheer DNA Gateway Northbound
Sheer NetworkVision
TCP
9770
Sheer NetworkVision
TCP
9771
Sheer NetworkVision - Webstart Edition
TCP
1310
Sheer EventVision
TCP
1521
SSH (for Sheer DNA Shell)
TCP
22
Telnet (for Sheer DNA Shell)
TCP
23
BQL
TCP
9002
Registry Editor
TCP
8011
Registry Editor
TCP
8099
Sheer DNA Gateway Southbound and Intra-Unit Communication
Transport
TCP
9390
High Availability & Registry Synchronization
TCP
8099
System Administration and Scripts
TCP
512
System Administration and Scripts
TCP
513
System Administration and Scripts
TCP
514
Secure connectivity for System Administration and Scripts
TCP
1101
Time Synchronization (NTP)
UDP
123
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Drools Rules Engine
D
Drools Rules Engine
About this appendix:
This appendix introduces and describes the Drools rules engine.
Drools Rules Engine Overview, below, introduces the Drools rules engine
components and terminology.
Drools and ANA Integration, page 162, explains how Drools is integrated
within Cisco ANA.
Drools Definitions in ANA, page 162, describes Drools within ANA.
Upgrading Rule Files, page 163, describes the rule upgrade process.
D.1
Drools Rules Engine Overview
Drools rules engine is a general-purpose expert-system generator and
combines rule-based techniques and object-oriented programming. It also
provides a customizable mechanism to add decision support and data flow
control functions to business applications.
Drools rules engine is based on an object-oriented paradigm and uses userdefined rules to perform pattern matching on different conditions. The rules
are written in a java like syntax, and are organized into source files (known as
a rule files), which are plain ASCII files.
D.1.1
Drools Components and Terminology
Drools uses objects as marked out by patterns and rules that invoke certain
Actions:
•
Drools objects are Java objects and can be represented by instances of
Java classes or XML schemas.
•
A pattern is a coded expression (“program”), which manipulates one or
more objects to form a pattern to make, adapt or fashion behavior
according to designed logic.
•
Working Memory is where Drools stores all the objects, which it is
currently handling.
•
Actions are operations that may change the working memory.
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•
•
D.2
A rule can perform many types of actions, such as:
•
Add or remove an object from the working memory
•
Modify an object
•
Execute a method on one of the objects
The Agenda is where Drools stores the list of rules to be fired.
Drools and ANA Integration
The Drools rule engine enables the user to extend the ANA alarm correlation
mechanism with user-defined rules and business logic.
The Drools rule engine is fully integrated within the Cisco ANA Gateway
and does not require any synchronization or maintenance. It can access all
ANA information and functions:
•
Use up-to-date network information (topology, hierarchy, inventory) as
part of its rule processing
•
Create and manipulate alarms, and send commands to NEs
•
Define operator-logic rules, such as:
•
If the alarm was not attended to within 2 hours then…
•
If there are more than 5 open alarms on this device then…
•
If today is Tuesday then…
The rules are written for Drools in xml format files, and can be modified and
reloaded in runtime. There is neither a need to compile the rules, nor to
restart any ANA component.
ANA maintains two Drools processing instances (Contexts), with two
respective rule files:
•
Pre-correlation processing context
•
Post-correlation processing context
The Rule files are located under ~sheer/Main/data in the ANA
Gateway server.
D.3
Drools Definitions in ANA
The Drools mechanism runs in two processing contexts:
Page 162
•
Pre-correlation context – defined in the pre.drl rule file
•
Post-correlation context – defined in the post.drl rule file.
Cisco Systems, Inc.
Drools Rules Engine
The Drools parameters are stored in the ANA registry file mmvm.xml under
the event-management key:
•
Context ID - the Drools context name
•
Rule file name – the name of the respective rule file.
•
D.4
the specified rule (the file name under mmvm.xml).
Upgrading Rule Files
To upgrade a rule file:
1.
Make a copy of the required rule file (pre.drl or post.drl), and edit it.
2.
Copy the updated file (under a temporary name) to the ANA Gateway
(directory ~sheer/Main/data).
Note: In case the rule file is edited on a PC, make sure that the text
format is compliant to the UNIX version that runs on the Cisco ANA
Gateway. If necessary, use a utility such as DOS2UNIX for conversion.
3.
Check the validity of the new file, by running the checkrules.cmd utility
(developed by Cisco to validate the rules syntax), as follows:
checkrules.cmd <rule-file-name>
4.
Once the rule file has been validated:
•
Copy the new rule file on top of the respective existing rule file.
•
Reload rules files by running the reloadrules.cmd utility, as follows:
reloadrules.cmd <contex-id>
For information about using Shell commands to manipulate Drools, refer to
the Cisco Active Network Abstraction Shell User’s Guide.
For more information about Drools, go to www.drools.org
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