ADTRAN 1204006L1 User manual

DSU IQ

Data Service Unit with Frame Relay

Performance Monitoring

USER MANUAL

DSU IQ Unit

ESP Ethernet Card

ESP 4-wire SW56 DBU Card

ESP V.34 DBU Card

ESP ISDN DBU Card

ESP External DCE Card

1200212L1

1204005L1

1204001L1

1204002L1

1204004L1

1204006L1

61200.212L1-1B

May 1998

Trademark Information:

OpenView is a registered trademark of Hewlett-Packard Company.

SunNet Manager is a registered trademark of Sun Microsystems, Inc.

Netview is a registered trademark of IBM.

IQ View is a trademark of ADTRAN, Inc.

This product includes software developed by the University of California, Berkeley, and its contributors.

901 Explorer Boulevard

P.O. Box 140000

Huntsville, AL 35814-4000

Phone: (256) 963-8000

© 1998 ADTRAN, Inc.

All rights reserved.

Printed in USA.

ABOUT THIS MANUAL

This manual is arranged so you can quickly and easily find the information you need. The following is an overview of the contents of this manual:

• Chapter 1, Introduction, familiarizes you with frame relay networks and DSU IQ highlights.

• Chapter 2, Installation, describes the DSU IQ connectors (pin assignments are given in Appendix A) and provides an installation diagram.

• Chapter 3, Operation, explains how to operate your DSU IQ using either the front panel or a terminal interface.

• Chapter 4, Applications, provides examples of some common

DSU IQ applications. This chapter includes network diagrams as well as configuration examples.

• Chapter 5, Configuration Overview, explains how to access the

DSU IQ configuration menu and provides menu trees for both the front panel and the terminal interface.

• Chapters 6 through 9 provide brief explanations for selections made in the Configuration menus. These chapters are based on the first level menu branches of the Configuration menu:

DTE Port, Network Port, DBU, and System Configuration.

• Chapter 10, Statistics, describes how to access statistical information from the DSU IQ.

• Chapter 11, Testing, explains how to access the DSU IQ diagnostic features, including PVC loopback and ping tests.

• Chapter 12, Activating Dialing Functions, provides information on the dialing options accessed through the Main menu.

• Appendix A provides pinouts for the DSU IQ connectors.

• Appendix B contains product specifications.

Notes provide additional useful information.

Cautions signify information that could prevent service interruption.

Warnings provide information that could prevent damage to the equipment or endangerment to human life.

FCC regulations require that the following information be provided in this manual:

1. This equipment complies with Part 68 of the FCC rules. On the bottom of the equipment housing is a label that shows the FCC registration number and ringer equivalence number

(REN) for this equipment. If requested, provide this information to the telephone company.

2. If this equipment causes harm to the telephone network, the telephone company may temporarily discontinue service. If possible, advance notification is given; otherwise, notification is given as soon as possible. The telephone company will advise the customer of the right to file a complaint with the FCC.

3. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the proper operation of this equipment; advance notification and the opportunity to maintain uninterrupted service are given.

4. If experiencing difficulty with this equipment, please contact ADTRAN for repair and warranty information. The telephone company may require this equipment to be disconnected from the network until the problem is corrected, or it is certain the equipment is not malfunctioning.

5. This unit contains no user-serviceable parts.

6. An FCC compliant telephone cord with a modular plug is provided with this equipment. In addition, an FCC compliant cable appropriate for the dial backup option ordered is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using an FCC compatible modular jack, which is Part 68 compliant.

7. The following information may be required when applying to the local telephone company for leased line facilities:

Service Digital Facility Service Order Network

Type

56 kbps Digital Interface

64 kbps Digital Interface

Interface Code

04DU5-56

04DU5-64

Code

6.0F

6.0F

Jacks

RJ-48S

RJ-48S

8. The following information may be required when applying to the local telephone company for a dial-up line for the V.34:

Service REN FIC USOC

Type

Loop Start (V.34) 0.8B/0.4A

02LS2 RJ-11C

9. The REN is useful in determining the quantity of devices you may connect to your telephone line and still have all of those devices ring when your number is called. In most areas, the sum of the RENs of all devices should not exceed five. To be certain of the number of devices you may connect to your line as determined by the REN, call your telephone company to determine the maximum REN for your calling area.

10. This equipment may not be used on coin service provided by the telephone company.

Connection to party lines is subject to state tariffs. (Contact your state public utility commission or corporation commission for information.)

FEDERAL COMMUNICATIONS COMMISSION

RADIO FREQUENCY INTERFERENCE STATEMENT:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio frequencies. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Shielded cables must be used with this unit to ensure compliance with Class A FCC limits.

Change or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

CANADIAN EMISSIONS REQUIREMENTS

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus," ICES-003 of the Department of Communications.

Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Class A prescrites dans la norme sur le materiel brouilleur:

"Appareils Numeriques," NMB-003 edictee par le ministre des Communications.

CANADIAN EQUIPMENT LIMITATIONS

Notice: The Canadian Industry and Science Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The

Department does not guarantee the equipment will operate to the user's satisfaction.

Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the company's inside wiring associated with a single line individual service may be extended by means of a certified connector assembly (telephone extension cord). The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.

Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.

Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.

Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or an electrician, as appropriate.

The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device, to prevent overloading. The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the Load Numbers of all devices does not exceed 100.

Table of Contents

Chapter 1. Introduction

Product Overview .................................................................................................................. 1

Understanding Frame Relay ................................................................................................. 2

DDS Operation ........................................................................................................................ 3

SNMP Management ............................................................................................................... 4

Network Manager ............................................................................................. 4

Agent ................................................................................................................... 4

MIB ...................................................................................................................... 4

TELNET .................................................................................................................................... 5

Dial Backup Operation .......................................................................................................... 5

ESP Card Options ................................................................................................................... 5

Ethernet Card ................................................................................................................... 5

4-Wire Switched 56 DBU Card ...................................................................................... 6

V.34 DBU Card ................................................................................................................ 6

ISDN DBU Card ............................................................................................................... 6

DCE Card .......................................................................................................................... 6

Warranty and Customer Service .......................................................................................... 7

Chapter 2. Installation

Unpack, Inspect, Power Up ................................................................................................... 9

Receipt Inspection ........................................................................................................... 9

ADTRAN Shipments Include ................................................................................. 9

Customer Provides ................................................................................................. 10

Power Up ........................................................................................................................ 10

Rear Panel .............................................................................................................................. 10

DBU and LAN Card Slots ............................................................................................ 12

Telco Connector: Network Interface Connection .................................................... 12

EIA-232 and V.35 Connectors: DTE Data Connection ............................................ 13

Control Port .................................................................................................................... 13

Chapter 3. Operation

Front Panel ............................................................................................................................. 15

LCD Window .......................................................................................................... 15

Enter ......................................................................................................................... 15

Up and Down Arrows ........................................................................................... 15

61200.212L1-1 DSU IQ User Manual i

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Cancel ....................................................................................................................... 15

Numeric Keypad .................................................................................................... 16

Next, Prev, Add, Delete ......................................................................................... 16

Shift .......................................................................................................................... 16

LED Descriptions ................................................................................................... 19

RS: Request to Send ....................................................................................... 19

CS: Clear to Send ............................................................................................ 19

TD: Transmit Data .......................................................................................... 19

RD: Receive Data ............................................................................................ 19

CD: Carrier Detect .......................................................................................... 19

ALM: Alarm .................................................................................................... 19

TST: Test ........................................................................................................... 19

Front Panel Operation .................................................................................................. 20

VT 100 Terminal Connection and Operation ............................................................ 21

DSU IQ Menu Structure ....................................................................................................... 23

Main Menu ..................................................................................................................... 23

Configuration (CONFIG) ............................................................................... 23

View Statistics (STATS) ................................................................................... 23

Test .................................................................................................................... 23

Dial .................................................................................................................... 23

Logout (terminal menu only) ........................................................................ 24

Chapter 4. Applications

Management Applications .................................................................................................. 25

Local VT 100 Terminal Management .......................................................................... 26

Minimum Configuration Requirements for VT 100 Management ................. 26

Out-of-Band Management ........................................................................................... 27

Minimum Configuration Requirements for Out-of-Band Management ....... 28

In-Band Management ................................................................................................... 29

Local PVC Management ........................................................................................ 29

Minimum Configuration Requirements for Local PVC Management .... 30

Shared PVC Management ..................................................................................... 32

Minimum Configuration Requirements for Shared PVC Management . 33

Dedicated PVC Management ............................................................................... 34

Minimum Configuration Requirements for Dedicated PVC Management .................................................................. 34

Dial Backup Application ...................................................................................................... 35

Chapter 5. Configuration Overview

Local and Remote Configuration ....................................................................................... 39 ii DSU IQ User Manual 61200.212L1-1

Table of Contents

Chapter 6. DTE Port Configuration

Physical Layer Options (PHYS LYR OPT) ................................................................. 46

Interface Type (INTERFACE) ............................................................................... 46

Bit Rate ..................................................................................................................... 46

Flow Control ........................................................................................................... 46

None .................................................................................................................. 47

Hardware ......................................................................................................... 47

FECN/BECN ................................................................................................... 47

CTS Option .............................................................................................................. 47

Forced On ......................................................................................................... 47

Follow RTS (FOL RTS) .................................................................................... 47

DSR Option ............................................................................................................. 47

Forced On ......................................................................................................... 47

Normal .............................................................................................................. 47

CD Option ............................................................................................................... 47

Forced On ......................................................................................................... 48

Normal .............................................................................................................. 48

Frame Relay Options (FR OPTS) ................................................................................. 48

T392 .......................................................................................................................... 48

N392 and N393 ....................................................................................................... 48

Management DLCI (MGMT DLCI) ..................................................................... 49

Guidelines for Configuring Management DLCI ........................................ 49

Management PVC Options (MGMT PVC OPT) ................................................ 49

Signaling Responses (SIG RESPONSES) ............................................................. 49

Always On ....................................................................................................... 49

Follow Network (FOLLOW NET) ................................................................ 49

Chapter 7. Configuring the Network Port

Network Port ......................................................................................................................... 51

Physical Layer Options (PHYS LYR OPT) ................................................................. 52

Loop Rate ................................................................................................................. 52

Clock Source ............................................................................................................ 53

Frame Relay Options (FR OPT) ................................................................................... 53

Signal Type (SIGNAL) ........................................................................................... 53

T391 .......................................................................................................................... 54

N391 ......................................................................................................................... 54

N392 and N393 ....................................................................................................... 54

Management DLCI 1 and 2 (DLCI 1 and 2) ............................................................... 54

Management DLCI 1 and 2 Mode (DLCI 1 and 2 MODE) ...................................... 55

Max PVC Count ............................................................................................................. 55

61200.212L1-1 DSU IQ User Manual iii

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History Interval Count (HST INT COUNT) .............................................................. 55

PVC Options (PVC CONFIG) ...................................................................................... 55

DLCI ......................................................................................................................... 56

DBU DLCI ............................................................................................................... 56

CIR <Kbps> ............................................................................................................. 56

Seq Num Checking (SEQ #) .................................................................................. 56

Delay Measurement (PVC DELAY) .................................................................... 56

Next (NEXT key on front panel) .......................................................................... 57

Previous (PREV key on front panel) .................................................................... 57

Add (ADD key on front panel) ............................................................................ 57

Delete (DELETE key on front panel) ................................................................... 57

Chapter 8. Configuring Dial Backup Options

Dial Backup Options ............................................................................................................ 59

Auto DBU ....................................................................................................................... 61

DBU Options .................................................................................................................. 61

Beep Enable ............................................................................................................. 61

Password Enable .................................................................................................... 61

DBU Password ........................................................................................................ 61

Daily Lockout.......................................................................................................... 61

Lockout Start (LCKOUT START) ......................................................................... 61

Lockout End ............................................................................................................ 61

Weekend Lock ........................................................................................................ 62

DBU Criteria ................................................................................................................... 62

With OOS ................................................................................................................. 62

With No Rx .............................................................................................................. 62

With No SC ............................................................................................................. 62

With No LMI ........................................................................................................... 62

DBU Timers .................................................................................................................... 62

Fail Timer ................................................................................................................ 62

Restore Timer .......................................................................................................... 62

Redial Counter ........................................................................................................ 63

Wait to Redial ......................................................................................................... 63

DBU Card Options ........................................................................................................ 63

Modem Options ...................................................................................................... 63

ISDN Options .......................................................................................................... 63

B-Channel Bit Rate (B-CH BIT RATE) .......................................................... 64

SPID 1/2 ........................................................................................................... 64

LDN 1/2 ........................................................................................................... 64

DCE Options ........................................................................................................... 64 iv DSU IQ User Manual 61200.212L1-1

Table of Contents

Interface Type .................................................................................................. 64

DBU Bit Rate .................................................................................................... 64

Phone Numbers 1-5 ....................................................................................................... 64

Chapter 9. System Configuration

Change Password (not available on front panel) ............................................................. 65

IP Address .............................................................................................................................. 65

Subnet Mask .......................................................................................................................... 65

Gateway IP Address (GW IP ADDRESS) .......................................................................... 66

Control Port Mode (CNTL PORT MODE) ........................................................................ 66

Read Community Name (RD COM NAME) .................................................................... 66

Write Community Name (WR COM NAME) .................................................................. 67

Trap Mgr Options ................................................................................................................. 67

Trap Manager DLCI (TRAP DLCI) ............................................................................. 67

Trap Manager IP Address (TRAP IP) ......................................................................... 67

Trap Manager Port (TRAP PORT) .............................................................................. 67

Next (NEXT key on front panel) ................................................................................. 67

Previous (PREV key on front panel) ........................................................................... 67

Add (ADD key on front panel) .................................................................................... 68

Delete (DELETE key on front panel) .......................................................................... 68

System Time/Date ................................................................................................................ 68

History Interval Size (HST INT SIZE) ............................................................................... 68

Entering Letters Using the Front Panel ............................................................................. 69

Chapter 10. Statistics

Viewing Statistical Information (Terminal Interface) ...................................................... 71

Terminal Statistics Display Options ........................................................................... 72

View by Interval .............................................................................................. 72

View by Day ..................................................................................................... 73

Hot Keys ......................................................................................................................... 74

ESC=Menu ....................................................................................................... 74

D=DLCI ............................................................................................................ 74

C=Current ........................................................................................................ 74

F=Freeze ........................................................................................................... 74

Page (+, -).......................................................................................................... 74

Scroll (<, >) ....................................................................................................... 74

V=View by Day/View by Interval ............................................................... 74

DTE Port Statistics ......................................................................................................... 75

Network Port Statistics ................................................................................................. 78

DBU Port Statistics ........................................................................................................ 84

61200.212L1-1 DSU IQ User Manual v

Table of Contents

DLCI Statistics ........................................................................................................ 87

DLCI Statistics for a Specific DLCI ...................................................................... 88

Summary of All Available DLCIs ........................................................................ 93

System Statistics ............................................................................................................. 94

Viewing Statistical Information (Front Panel Interface) ................................................. 95

DTE Port Statistics Available on Front Panel ............................................................ 95

Network Port Statistics Available on Front Panel .................................................... 97

DBU Port Statistics Available on Front Panel ........................................................... 98

DLCI List ......................................................................................................................... 99

System Statistics Available on Front Panel ................................................................ 99

Chapter 11. Testing

Ping ....................................................................................................................................... 102

Address to Ping (PING ADDRESS) .......................................................................... 102

Start Ping ...................................................................................................................... 102

Number of Pings Transmitted (PINGS TX) ...................................................... 102

Ping Responses (PINGS RX) ............................................................................... 103

Min Response Time (MIN RESP TIME) ............................................................ 103

Max Response Time (MAX RESP TIME) .......................................................... 103

Avg Response Time (AVG RESP TIME) ........................................................... 103

PVC Loopback ..................................................................................................................... 103

DLCI <0 = all> (DLCI) ................................................................................................ 104

Test Len ......................................................................................................................... 104

Start Test ....................................................................................................................... 104

Stop Test ........................................................................................................................ 104

View Test ...................................................................................................................... 105

PVC Active/Inactive/Undefined ...................................................................... 105

Test Active/No Test Active ................................................................................ 105

Frames Rx .............................................................................................................. 105

Frames Tx .............................................................................................................. 105

Lost Frames ........................................................................................................... 105

Remote Lost Frames ............................................................................................. 105

Minimum Loop Response Time (MIN RESP TIME) ....................................... 105

Maximum Loop Response Time (MAX RESP TIME) ..................................... 105

Average Loop Response Time (AVG RESP TIME) ......................................... 106

Reset Test Stats ............................................................................................................. 106

View DLCI List ............................................................................................................ 106

Chapter 12. Activating Dialing Functions

Dialing Options ................................................................................................................... 107 vi DSU IQ User Manual 61200.212L1-1

Table of Contents

Dial Options when Dial Backup is Idle .................................................................... 107

Dial Backup ........................................................................................................... 107

Stay on Leased ...................................................................................................... 107

Dial Options During Dial Backup ............................................................................. 108

Hang Up ................................................................................................................ 108

Stay on Line ........................................................................................................... 108

Appendix A. Pinouts ........................................................................................................ 109

Appendix B. Specifications Summary .......................................................................... 115

Acronyms and Abbreviations ......................................................................................... 119

Glossary ............................................................................................................................... 123

Index ..................................................................................................................................... 137

List of Tables

Table 4-A Example Settings for Dial Backup Options ................................................. 37

Table 4-B Example Settings for PVC Configuration Table ......................................... 37

Table 10-A Possible DSU States ........................................................................................ 79

Table A-A Pin Assignments for Telco Connector ........................................................ 109

Table A-B Pin Assignments for EIA-232 Connector .................................................... 110

Table A-C Pin Assignments for V.35 Connector ........................................................... 111

Table A-D Pin Assignments for Control Connector ..................................................... 111

Table A-E Pin Assignments for 10baseT Connector (Ethernet Card) .......................112

Table A-F ESP DBU Card Pin Assignments .................................................................112

Table A-G DTE/DCE Connector Pin Assignments (DCE Card Option) ..................113

List of Figures

Figure 2-1 DSU IQ Rear View ...........................................................................................11

Figure 3-1 DSU IQ Front Panel ........................................................................................ 17

Figure 3-2 Example of Basic Front Panel Menu Navigation ........................................ 20

Figure 3-3 Terminal Login Menu ..................................................................................... 22

Figure 3-4 Terminal Main Menu ...................................................................................... 22

Figure 4-1 VT 100 Management Application Example ................................................ 26

Figure 4-2 Out-of-Band Management Application Example ....................................... 27

Figure 4-3 Local PVC Management Application ........................................................... 30

Figure 4-4 Shared PVC Management Application ........................................................ 32

Figure 4-5 Dedicated PVC Management Application .................................................. 34

61200.212L1-1 DSU IQ User Manual vii

Table of Contents

Figure 4-6 Dial Backup Application ................................................................................ 36

Figure 5-1 Terminal Configuration Menu ...................................................................... 40

Figure 5-2 Front Panel Configuration Menu Tree ......................................................... 41

Figure 5-3 Terminal Configuration Menu Tree .............................................................. 43

Figure 6-1 Terminal DTE Port Configuration Menu ..................................................... 45

Figure 6-2 DTE Port Menu Tree ....................................................................................... 46

Figure 7-1 Network Port Configuration Menu Tree ..................................................... 51

Figure 7-2 Terminal Network Port Configuration Menu ............................................. 52

Figure 7-3 Terminal Network Port Frame Relay Options Menu ................................ 53

Figure 8-1 DBU Options Menu (V.34 DBU card installed) ........................................... 59

Figure 8-2 Dial Backup Menu Tree .................................................................................. 60

Figure 9-1 System Configuration Menu ......................................................................... 66

Figure 10-1 View Statistics Menu ...................................................................................... 72

Figure 10-2 DTE Port Statistics (View by Interval) ......................................................... 75

Figure 10-3 DTE Port Statistics (View by Day) ................................................................ 76

Figure 10-4 Network Port Statistics with

ISDN DBU Card installed (View by Interval) ............................................. 80

Figure 10-5 Network Port Statistics (View by Day) ........................................................ 81

Figure 10-6 DBU Port Statistics (View by Interval) ......................................................... 85

Figure 10-7 DBU Port Statistics (View by Day) ............................................................... 86

Figure 10-8 DLCI Statistics for a Specific DLCI (View by Interval) .............................. 88

Figure 10-9 DLCI Statistics Summary for All Available DLCIs ..................................... 93

Figure 10-10 System Statistics Screen ................................................................................ 94

Figure 10-11Control Signal Status Screen .......................................................................... 95

Figure 10-12 Signal State Screen ......................................................................................... 96

Figure 10-13 System Statistics Screen ................................................................................ 99

Figure 11-1 Terminal Test Menu (with ESP Ethernet Card Installed) ........................ 101

Figure 11-2 Front Panel Test Menu (with ESP Ethernet Card Installed) .................... 102

Figure 11-3 PVC Loopback Menu ................................................................................... 104

Figure 11-4 Test Status Screen .......................................................................................... 106

Figure 12-1 Dial Options Menu ....................................................................................... 107 viii DSU IQ User Manual 61200.212L1-1

Chapter 1. Introduction

Chapter 1

Introduction

PRODUCT OVERVIEW

The ADTRAN DSU IQ provides the visibility and control needed for both the physical and logical connections made in frame relay networks. The DSU IQ provides logical layer monitoring and management for frame relay. Each permanent virtual circuit

(PVC) accessed through a DSU IQ is managed end-to-end as if it were a leased line connection. Real-time statistics on throughput, bandwidth utilization, availability, bursting, congestion, and network delay are collected and stored in the Frame IQ MIB

(management information base). This information can then be gathered by management systems and used to monitor network health and perform long-term network planning.

The unit's embedded SNMP (simple network management protocol) agent provides complete SNMP access to the unit.

SNMP access is available through the DTE or network port or through an integral SLIP (serial line internet protocol) or PPP

(point-to-point protocol) async port. The DSU IQ's unique modular approach provides optional 10baseT ethernet access for

SNMP.

The following are features of the DSU IQ:

• Complete and comprehensive frame relay monitoring

• Real-time measurement of bandwidth utilization, committed information rates (CIRs), and excess burst rates on each PVC

• True non-intrusive, in-band transmission of statistics

1 61200.212L1-1 DSU IQ User Manual


• Embedded SNMP and TELNET through the DTE, network, or

SLIP/PPP port (or through the optional ethernet interface)

• Dial backup (DBU) available with ESP DBU cards; options include 4-wire Switched 56 (SW56), V.34, and ISDN

• Control port provides SLIP and async PPP access to SNMP or

VT 100 terminal configuration

• End-to-end network round trip delay measurements for network optimization

• 10baseT ethernet port available with ESP ethernet card

• Frame IQ MIB is standard ASN.1 format compatible with popular enterprise reporting systems

• Optional IQ View™ software system provides a cost-effective, easy-to-use GUI (graphical user interface) for performance management

• Standard DTE (data terminal equipment) interfaces

The ESP 4-wire SW56 DBU card is compatible with AT&T

Accunet and Sprint SW56 type services. The V.34 DBU card allows switched backup over the public switched telephone network (PSTN). The ESP ISDN 1B+D card supports a Uinterface to the Basic Rate ISDN and is compatible with National

ISDN and AT&T DMS.

The DSU IQ provides both V.35 and EIA-232 electrical and physical DTE interfaces to accommodate a variety of applications.

To ensure a reliable connection, the unit features an extended receiver capability which permits operation over long loops

(3.4 miles or 5.5 km of 26 AWG at 56 kbps).

UNDERSTANDING FRAME RELAY

Frame relay is a wide area network (WAN) service designed to minimize physical connections. This is accomplished by using virtual connections within the frame relay cloud and accessing these virtual circuits with normally one physical connection at each location to the frame relay service. Virtual circuits are addressed using header information at the beginning of each frame. These frames are formatted by the user's customer premise equipment (CPE) such as the ADTRAN DSU IQ.

2 DSU IQ User Manual 61200.212L1-1


ANSI (American National Standards Institute) standards describe how each frame must be constructed to provide interoperability between CPE equipment and frame relay switching equipment. Each frame must contain a header, at least one byte of information data, two bytes of CRC16, and a trailing flag

0x7E.

This header information contains a virtual circuit address known as a DLCI (data link connection identifier). The header information also contains bits used for network congestion control.

Frame relay virtual circuits may be defined as permanent (PVC) or switched (SVC). PVCs have the same DLCI for a given path each time a user protocol session is established. The network service provider assigns these DLCIs at subscription time. SVCs, on the other hand, have DLCIs dynamically assigned each time a user protocol session is established. The CPE equipment must request a call and the DLCI is assigned by the network switching equipment. This DLCI is valid until the call is disconnected and may be assigned a different value each time a call is requested.

DDS OPERATION

DDS (digital data service) is a nationwide service that allows interconnection and transport of data at speeds up to 64 kbps.

The local exchange carriers provide the local loop service to DDS customers and may provide data for routing Inter-LATA to an interexchange carrier. The DSU IQ supports 56 or 64 kbps DDS service rates yielding DTE rates of 56 kbps and 64 kbps.

61200.212L1-1 DSU IQ User Manual 3


SNMP MANAGEMENT

SNMP management capability is provided in-band with support for RFC 1315 (frame relay DTE MIB), RFC 1213 (MIB II), and

ADTRAN Enterprise MIB. MIB files are available from

ADTRAN in the support section of the ADTRAN Web page at www.adtran.com. TELNET capability is also supported. For non-SNMP environments, VT 100 and front panel operation is supported.

The DSU IQ's embedded SNMP feature allows the unit to be accessed and controlled by a network manager through the DTE or network port, through a device running SLIP or async PPP protocol (connected to the CONTROL port of the DSU), or through a LAN. LAN connection requires the optional ESP ethernet card (part number 1204005L1). This card provides a

10baseT ethernet interface to the LAN.

The term SNMP broadly refers to the message protocols used to exchange information between the network and the managed devices, as well as to the structure of network management data bases. SNMP has three basic components:

Network Manager

Control program that collects, controls, and presents data pertinent to the operation of the network devices. It resides on a network management station.

Agent

Control program that resides in each connected network device.

This program responds to queries and commands from the network manager and returns requested information or invokes configuration changes initiated by the manager.

MIB

Index to the organized data within a network device. It defines the operation parameters that can be controlled or monitored.



TELNET

TELNET provides a password-protected, remote login facility to the DSU IQ. TELNET allows a user on a network manager to control the DSU IQ through the terminal menus.

DIAL BACKUP OPERATION

The DSU IQ dial backup (DBU) option cards allow frame relay circuit outage recovery for one user-to-network interface (UNI) at a time. The DSU IQ can be configured to originate a call based on physical layer conditions and/or PVC signaling loss. Once the criteria is met, the DSU IQ establishes a call to the configured phone number and the connection is used to carry traffic for the

PVC(s) configured for DBU operation.

The DSU IQ's two-port design allows the DSU IQ receiving the call to continue to use the DDS frame relay circuit for PVCs that are not affected by the outage, while using the DBU interface for

PVCs that are inactive due to the outage. A DSU IQ with multiple PVCs to multiple sites can also originate a call to one site during an outage and restore connection for PVCs to that destination.

The DSU IQ's unique DBU cards are field-installable by the customer. See the chapter Installation for information on installing DBU cards. The DBU cards are compatible with other

ADTRAN ESP products supporting DBU. The three backup options are described in the following section, ESP Card Options.

Contact the local telco provider to determine which services are available in your area. See the chapter Applications for more information, including an example of a dial backup application.

ESP CARD OPTIONS

Ethernet Card

This option card connects to an ethernet LAN, providing communication of management traffic between the LAN and the

DSU IQ.



4-Wire Switched 56 DBU Card

This dial-up 4-wire SW56 card allows you to pay for data connection only for the time the unit is active. The regional operating companies provide the 4-wire local loop service to

SW56 customers.

V.34 DBU Card

This module backs up the leased line application at data rates up to 33.6 kbps over an ordinary telephone network.

ISDN DBU Card

1B+D Basic Rate ISDN service provides a switched 56/64 kbps circuit.

DCE Card

This module connects an external DCE device to the DSU IQ for the purpose of using an external DSU/CSU to support access rates up to 512 kbps. The ESP DCE card is inserted into the DBU card slot, but it is not used for dial backup.



WARRANTY AND CUSTOMER SERVICE

ADTRAN will replace or repair this product within five years from the date of shipment if it does not meet its published specifications or fails while in service. For detailed warranty, repair, and return information refer to the ADTRAN Equipment

Warranty and Repair and Return Policy Procedure.

Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN.

For service, RMA requests, or further information, contact one of the numbers listed on the inside back cover of this manual.




Chapter 2. Installation

Chapter 2

Installation

UNPACK, INSPECT, POWER UP

Receipt Inspection

Carefully inspect the DSU IQ for any shipping damage. If damage is suspected, file a claim immediately with the carrier and contact ADTRAN Customer Service. If possible, keep the original shipping container for use in shipping the DSU IQ for repair or for verification of damage during shipment.

ADTRAN Shipments Include

The following items are included in ADTRAN shipments of the

DSU IQ:

• DSU IQ unit

• The user manual

• An 8-position modular to 8-position modular cable

• An 8-position modular to 8-position modular cable and a modular to female DB-25 adapter for access to the Control/

SLIP/PPP port



The ADTRAN DSU IQ MIB is available from ADTRAN in the support section of the ADTRAN Web page at www.adtran.com.

The following items are included in ADTRAN shipments of ESP

DBU cards:

• ESP DBU card

• An 8-position modular to 8-position modular cable for the 4wire SW56 and ISDN DBU options or an 8-position modular to

4-position modular cable for the V.34 DBU option

Customer Provides

The customer must provide either a male EIA-232 (standard 25pin, D-type) or a male V.35 interface cable.

For SNMP management not accessed through the DTE or network port, the customer must provide access to the DSU IQ either through a SLIP port, Async PPP port (requires a male 25pin D-type connector), or a 10baseT ethernet port (requires that an ADTRAN ESP Ethernet card be installed in the DSU IQ). See the appendix Pinouts for the pin assignments of the control port

(for SLIP and Async PPP) and the ethernet port.

Power Up

The DSU IQ is provided with a captive 8-foot power cord, terminated by a three-prong plug which connects to a grounded

115 VAC power receptacle.

Power to the DSU must be provided from a grounded 115 VAC, 60 Hz receptacle.

REAR PANEL

The rear panel contains two DTE connectors which provide primary channel V.35 or EIA-232. An 8-pin telco jack, a control port, a captive power cord, and a power switch are also located on the rear panel. Pin assignments for these connectors are listed


Chapter 2. Installation in the appendix Pinouts. The DSU IQ rear panel is shown in

Figure 2-1 with optional ESP DBU and ethernet cards installed.

V.34, ISDN,

4-Wire Switched 56

Switched

Network

Frame

Relay

4-wire

Telco Cable

DBU Modular

Cable

TELCO

DBU INTERFACE

DBU

TELCO

EIA-232

EIA232 Cable

CONTROL

VT 100 Terminal or device running SLIP or async PPP protocol

8-pin Modular

to DB25

ESP Ethernet Card

LAN INTERFACE

10 BASE T

LAN

V .35

ON

115 VAC

60HZ.15A

OFF

V.35 Cable

I tem

DBU Interface

LAN Interface

Telco

EIA-232

Control

V.35

Router or other DTE Device

(Only one DTE interface can be active at a time)

Power Switch

115 VAC Connection

Function

ESP DBU card slot

ESP Ethernet card slot

Connects to dedicated circuit

Connects to a DTE interface

Connects to a VT 100 terminal or a device running SLIP or async PPP protocol

High speed DTE interface

Turns power on or off

Power cord connection

Figure 2-1

DSU IQ Rear View



DBU and LAN Card Slots

The DSU IQ rear panel has two card slots for the installation of dial backup, external DCE, and ethernet cards. To insert cards, perform the following procedure:

1. Remove power from the DSU IQ.

2. Slide the card into the corresponding rear slot until the card panel is flush with the DSU IQ chassis.

3. Push card locks in (until they click) to secure the card and ensure proper installation.

Card slots are keyed to prevent improper installation (i.e., putting a

DBU card into the ethernet slot). The external DCE card is keyed for the DBU slot.

Remove power from the unit prior to installing or removing option cards.

Telco Connector: Network Interface Connection

The DSU IQ has an 8-position modular jack labeled TELCO. The telco connector is used for connecting to the DDS network. The pinout for this connector is listed in the appendix Pinouts.



EIA-232 and V.35 Connectors: DTE Data Connection

The DTE should be connected to either the EIA-232 DTE connector or the V.35 DTE connector. The maximum cable lengths recommended are 50 feet for the EIA-232 and 100 feet for the

V.35. The pin assignments for the connectors are listed in the appendix Pinouts.

The V.35 connector is recommended for use with data rates above 19.2 kbps. The EIA-232 connector works up to 56 kbps with a low capacitance cable or with the external transmit clock option selected. The primary DTE equipment can operate in asynchronous or synchronous modes.

To prevent possible radio frequency interference emissions, a shielded cable is required.

Control Port

The DSU IQ has an 8-position modular jack labeled CONTROL.

The control port provides connection to a VT 100 EIA-232 compatible interface, a device running SLIP protocol, or a device running Async PPP protocol. An 8-foot adapter connector and cable provide a standard DB-25 EIA-232 interface. See the appendix Pinouts for the control port’s pin assignments. A description of the operation of this port is covered in the Opera-

tion chapter.

The control port also functions as the SLIP or Async PPP port when configured for SNMP management. The pinouts are identical when operating in an SNMP management mode.




Chapter 3. Operation

Chapter 3

Operation

FRONT PANEL

The DSU IQ faceplate is shown in Figure 3-1. Descriptions of each part of the front panel follow.

LCD Window

Displays menu items and messages in 2 lines by 16 characters.

Enter

Selects active menu items. To activate a menu item, scroll to it using the arrow keys or press the number of the item. The flashing cursor indicates which parameter is activated. Press

Enter to select the active menu item.

Up and Down Arrows

Up and down arrows scroll through and activate the menu items of the current menu. The flashing cursor indicates the active parameter.

Cancel

Pressing the Cancel key stops the current activity and returns to the previous menu. Repeat until the desired menu level is reached. When a submenu item is displayed, press Cancel to exit the current display and return to the previous menu.



Numeric Keypad

The numeric keypad contains the numbers 0 through 9 and alpha characters A through F, which are used to activate menu items and enter information such as the IP address.

Next, Prev, Add, Delete

To activate these functions, press and release the Shift key, then press the Next, Prev, Add, or Delete key. Use these keys when editing tables such as the PVC Options table. See the chapter

Configuring the Network Port for more information.

Shift

Enter alpha characters by first pressing and releasing the Shift key and then pressing the desired character. The Next, Prev,

Add , and Delete keys are also activated by first pressing Shift.

To activate a menu item designated by an alpha character rather than a number, place the cursor on the menu item using the up and down arrows or press Shift and then the letter. The flashing cursor indicates which parameter is activated. Press Enter to select the item.


page holder for foldout Figure 3-1



Chapter 3. Operation page holder for back of foldout Figure 3-1



LED Descriptions

The DSU IQ has seven LED indicators: RS, CS, TD, RD, CD,

ALM, and TST. These LEDs are identified as follows:

RS: Request to Send

Reflects the status of the RS pin of the DTE interface.

CS: Clear to Send

Reflects the status of the CS pin of the DTE interface.

TD: Transmit Data

This LED is active when the DSU IQ DTE port is transmitting data.

RD: Receive Data

This LED is active when the DSU IQ DTE port is receiving data.

CD: Carrier Detect

This LED is active when frame synchronization is achieved and the DSU IQ is ready to transfer data.

ALM: Alarm

This LED is active when an alarm condition exists. Alarm conditions include:

DDS Alarm Conditions

• Open loop on network

• No frame synchronization

• OOS/OOF

Frame Relay Alarm Condition

• Network frame relay signaling state is down

TST: Test

This LED is active when the unit is in test mode.



Front Panel Operation

To choose a menu item, press the corresponding number or alpha character on the keypad. Press Shift to activate menu items with alpha selections. Scrolling to the selection by pressing the up and down arrows also activates the menu items. The flashing cursor indicates which selection is activated. Press

Enter to select the item. The following steps and Figure 3-2 illustrate how to select DSU IQ options:

1. Activate Configuration (CONFIG) using the arrow keys or by pressing 1. The cursor will flash on the number next to the activated selection. Press Enter.

2. Use the arrow keys to view submenu items.

3. Choose an item on the submenu such as DTE PORT.

4. Activate DTE PORT using the arrow keys or by pressing 1.

Press Enter.

5. Activate PHYS LYR OPT using the arrow keys or by pressing

1 . Press Enter.

6. Activate INTERFACE using the arrow keys or by pressing 1.

Press Enter.

7. Press the arrow keys until the desired interface type is displayed. Press Enter.

1 DTE PORT

1 CONFIG 2 NETWORK PORT

3 DIAL BACKUP

4 CONTROL PORT

5 SYSTEM

1 PHYS LYR OPT 1 INTERFACE

2 FR OPTS 2 BIT RATE

3 FLOW CONTROL

4 CTS OPTION

5 DSR OPTION

6 CD OPTION

EIA-232

V.35

Figure 3-2

Example of Basic Front Panel Menu Navigation

(with DBU card installed)



VT 100 Terminal Connection and Operation

To control the DSU IQ using a VT 100 terminal, perform the following procedure:

1. Set the DSU IQ baud rate to match the terminal through the front panel (maximum rate is 38.4k). Select CONFIG, then

CONTROL PORT .

2. Using the ADTRAN provided VT 100 terminal adapter, connect the COM port of a VT 100 compatible terminal or equivalent to the eight-pin modular jack labeled CONTROL on the rear of the DSU IQ. This connection is used for both local and remote configuration.

3. Open the connection and press Enter repeatedly until the

Login Menu appears (Figure 3-3).

4. Select Local Login to configure the DSU IQ unit connected to the terminal. Select Remote Login to configure a remotely located DSU IQ unit. For remote applications, enter the

DLCI (data link connection identifier) number of the remote unit by pressing 1, Enter, the DLCI number, and Enter again.

Next, select Begin Remote Session by pressing 2 and Enter.

If the wrong DLCI is entered or a network problem exists, the screen freezes at the Press any key to continue prompt. Press CNTL + L twice to return the unit to the Login screen.

5. Enter the password. The factory default password is adtran.

The Main menu will appear (Figure 3-4).

6. Make selections by entering the number corresponding to the chosen parameter. Press ESC to return to the previous screen.

In the upper right-hand corner of the VT 100 screen, LOCAL or

REMOTE is displayed, indicating which unit the current screen represents. See Figure 3-4.



Figure 3-3

Terminal Login Menu

22 DSU IQ User Manual

Figure 3-4

Terminal Main Menu

61200.212L1-1


DSU IQ MENU STRUCTURE

The opening menu is the access point to all other operations.

The Main menu branches are Configuration, View Statistics, Test,

Dial, and Logout. See Figure 3-4. Each Main menu item has several functions and submenus to identify and access specific parameters.

The Logout selection is available on the terminal interface only.

In this chapter, the terminal selections are listed first followed by the

Front Panel selections (if the names differ).

Main Menu

61200.212L1-1

Definitions for the branches of the Main menu follow:

Configuration (CONFIG)

Configuration is used to select DTE, network, dial backup, and system operating parameters. For more information on configuration options, see the following chapters: Configuration Over-

view, DTE Port Configuration, Configuring the Network Port,

Configuring Dial Backup Options, and System Configuration.

View Statistics (STATS)

This selection displays statistical information for the DTE port, network port, dial backup port, and the system. See the chapter

Statistics for more information.

Test

Testing options allow you to perform PVC loopback and ping tests. See the chapter Testing for more information.

Dial

This selection allows you to access manual dialing capabilities.

See the chapter Activating Dialing Functions for more information.

DSU IQ User Manual 23


Logout (terminal menu only)

This parameter logs out of the system.


CS LED

Reflects status of the

CTS pin of the primary DTE connector.

RS LED

Reflects status of the RTS pin of the primary DTE connector.


TD LED

Active when the

DTE port transmits data.

Up and Down Arrows

Scroll through and activate the submenu items available in the current menu. The flashing cursor indicates the active parameter.

RD LED

Active when the DTE port receives data.

Enter Key

Selects active menu item.

Numeric Keypad

Activates menu items and enters numerical information.

A

1

D

4

NEXT

7

SHIFT

*

DSU IQ

C

3

F

6

ADD

9

QUICK

#

Prev Key

Goes back to the previous entry when editing routing tables.

ENTER

CANCEL

B

2

E

5

PREV

8

DELETE

0

LCD Window

Displays menu items and messages in 2 lines by 16 characters.

CD LED

ALM LED

Active when an alarm condition

Active when DSU receives a carrier signal from the line.

exists.

Cancel

Stops current Next Key activity and returns to the

Advances to the next entry when editing previous menu.

routing tables.

Shift

Activates alpha selections

TST LED

Active when the unit is in test mode.

and the NEXT, PREV, ADD, and DELETE keys.

Add Key

Adds a new entry to the routing table.

Quick Key

Reserved for future use.

Delete Key

Deletes the current entry when editing routing tables.

61200.212L1-1 DSU IQ User Manual

Figure 3-1

DSU IQ Front Panel

17



Chapter 4. Applications

Chapter 4

Applications

This chapter provides examples of some common DSU IQ management application options as well as an example of a dial backup application. The management application examples include VT 100 management, out-of-band SNMP/TELNET management, and in-band PVC SNMP/TELNET management.

Descriptions and configuration tips for these applications are provided in the sections that follow.

The application drawings in this chapter show routers as the frame relay device. The frame relay device could be any device with frame relay capabilities. However, to use in-band management, the management DLCI must be RFC 1490 encapsulated IP traffic.

MANAGEMENT APPLICATIONS

One of the main advantages of the DSU IQ is management flexibility. The DSU IQ front panel interface provides complete configuration capabilities and viewing of key frame relay statistics information. Other management options described in this chapter provide configuration and diagnostics capabilities as well as all-inclusive statistics information.



Local VT 100 Terminal Management

Connect a VT 100 terminal to the DSU IQ control port. This interface provides full-screen configuration and all-inclusive statistics access. VT 100 management also allows for remote configuration. Through this port, a remotely located DSU IQ is fully accessible for configuration, diagnostics, and statistics viewing. See Figure 4-1 for an example VT 100 application.

VT 100 remote mode is proprietary and non-intrusive. Therefore, you can perform all VT 100 management functions without disrupting the flow of data.

Router Router

LAN LAN

TD1

RD1 TD2 RD2

TDN RDN ALM

/TST

D

4

A

1

NEXT

7

SHIFT

2

E

B

5

PREV

8

DELETE

0

ADD

9

QUICK

#

C

DSU IQ

3

6

F

DSU IQ

Frame

Relay

TD1

RD1 TD2 RD2

TDN RDN ALM

/TST

D

4

A

1

NEXT

7

SHIFT

2

E

B

5

PREV

8

DELETE

0

ADD

9

QUICK

#

C

DSU IQ

3

6

F

DSU IQ

VT 100

Figure 4-1

VT 100 Management Application Example

Minimum Configuration Requirements for VT 100 Management

The following options are the minimum configuration requirements for establishing VT 100 management access.

Baud Rate

Set the baud rate to match the VT 100 terminal rate. This is accessible from the front panel only (select CONTROL PORT from the CONFIGURATION menu).

Control Port Mode

Set the Control Port Mode for TERMINAL. This selection is found in the SYSTEM portion of the CONFIGURATION menu.



Out-of-Band Management

This management option (shown in Figure 4-2) is commonly used in situations where the customer is trying to reduce the amount of management traffic flowing through the frame relay device. The DSU IQ can be managed though an established

TELNET session or an SNMP-based network manager like HP

OpenView ® , IBM Netview ® , or SunNet Manager ® .

The ADTRAN DSU IQ MIB is available in the support section of the

ADTRAN Web page at www.adtran.com.

SNMP and TELNET management is provided by one of the following interfaces:

• A device (i.e., a router) running SLIP protocol. Connection is made through the DSU IQ's control port.

• A device (i.e., a router) running async PPP protocol. Connection is made through the DSU IQ's control port.

• A LAN. Connection is made through the optional 10baseT ethernet interface provided on the ESP ethernet card (part number 1204005L1).

SLIP/PPP

Router

10BaseT Ethernet LAN

Router

Frame

Relay

LAN

TD1 RD1 TD2

RD2 TDN RDN ALM

/TST

D

4

A

1

NEXT

7

SHIFT

B

2

5

E

PREV

8

DELETE

0

DSU IQ

6

ADD

9

F

C

3

QUICK

#

DSU IQ

TD1 RD1 TD2

RD2 TDN RDN ALM

/TST

A

1

4

D

NEXT

7

SHIFT

PREV

8

DELETE

0

2

B

E

5

DSU IQ

6

ADD

9

QUICK

#

C

3

F

DSU IQ

NMS

Figure 4-2

Out-of-Band Management Application Example



Minimum Configuration Requirements for Out-of-Band Management

The following options (all found in the SYSTEM portion of the

CONFIGURATION menu) are the minimum configuration requirements for establishing out-of-band SNMP or TELNET access. Once these options are configured, the unit may be accessed using SNMP/TELNET.

Control Port Mode

If necessary, select SLIP or PPP as the DSU IQ control port mode.

If the ESP ethernet card is the interface type, this parameter does not affect setup.

IP Address

Enter the DSU IQ IP address.

Subnet Mask

Enter the subnet mask number assigned to the network formed by the DSU and the other FRAD/routers across the frame relay network. This address is available from the network administrator and is only necessary when using the ESP ethernet card.

Gateway IP Address (if required)

Enter the Gateway node IP address. This address is applicable only if the DSU IQ and the network manager are connected through a Gateway node. This address is available from the network administrator and is only necessary when using the ESP ethernet card.

The next five settings are applicable for SNMP access only:

Read Community Name

Set the read community name to match the NMS (network management system) settings.

Write Community Name

Set the write community name to match the NMS settings.



Trap Manager DLCI

Identify the virtual circuit used for all traps generated by the

DSU IQ. This selection is found under TRAP MGR OPTIONS in the SYSTEM portion of the CONFIGURATION menu.

Trap Manager IP Address

Enter the IP address of the SNMP manager to which the DSU IQ sends traps. This selection is found under TRAP MGR OP-

TIONS in the SYSTEM portion of the CONFIGURATION menu.

Trap Manager Port

Enter the DSU IQ port used to transmit traps to the SNMP manager. This selection is found under TRAP MGR OPTIONS in the SYSTEM portion of the CONFIGURATION menu.

In-Band Management

The ADTRAN DSU IQ supports three modes of in-band management using the frame relay structure of PVCs. These modes are local (see Figure 4-3), shared (see Figure 4-4), and dedicated PVC management (see Figure 4-5). All three types support complete

SNMP management as well as TELNET capabilities.

All PVC-based in-band management traffic must be noncompressed IP and use RFC 1490 encapsulation.

Local PVC Management

Local PVC management refers to a PVC created between the

DSU IQ and the frame relay router on the DTE interface of the

DSU IQ. This type of management is ideal when local management is needed but an ethernet connection is not available. To support this type of management it is required that all traffic on the selected PVC be RFC 1490 encapsulated, noncompressed IP traffic.

The local PVC is sent out of the WAN serial port of the router as normal WAN traffic and is terminated in the DSU IQ. Since the

DSU IQ responds to Inverse ARP, it is not necessary to set up a


Chapter 4. Applications static route in the router. The router will discover the IP address automatically; however, it will be necessary to set up a local PVC between the router and the DSU IQ. Accomplish this by setting a value (between 16 and 1007) for the DTE management DLCI on the DSU IQ to a value not used by the frame relay network.

Local PVC management can be used at any location that has a router. Therefore, remote sites can be accessed through the remote router. One consideration when using local PVC management is that if the remote router goes down, then access to the remote DSU is lost.

30

LAN

NMS

Router Router

LAN

TD1 RD1 TD2

RD2 TDN RDN ALM

/TST

D

4

A

1

NEXT

7

SHIFT

B

2

E

5

PREV

8

DELETE

0

6

ADD

9

QUICK

C

DSU IQ

F

3

#

DSU IQ

Frame

Relay

TD1 RD1 TD2

RD2 TDN RDN ALM

/TST

D

4

A

1

NEXT

7

SHIFT

2

E

B

5

PREV

8

DELETE

0

6

ADD

9

QUICK

C

DSU IQ

3

F

#

DSU IQ

Figure 4-3

Local PVC Management Application

Minimum Configuration Requirements for Local PVC

Management

The following options are the minimum configuration requirements for establishing in-band local PVC management. Once these options are configured, the unit may be accessed using

SNMP/TELNET. All options (with the exception of the Management DLCI option) are found in the SYSTEM portion of the

CONFIGURATION menu.

IP Address


Management DLCI

Enter a DLCI number (between 16 and 1007) that is not used by

DSU IQ User Manual 61200.212L1-1

Chapter 4. Applications the frame relay service. This option is found in the DTE PORT portion of the CONFIGURATION menu under FRAME RELAY

OPTIONS.



Set the read community name to match the NMS settings.







Enter the IP address of the SNMP manager to which the DSU IQ sends traps. This selection is found under TRAP MGR OP-

TIONS in the SYSTEM portion of the CONFIGURATION menu.





Shared PVC Management

Shared PVC management refers to a PVC that is used for normal data traffic between locations. The DSU IQ monitors this PVC for packets that contain its IP address. When the DSU IQ detects a packet containing a destination IP address that matches the

DSU IQ IP address, the unit intercepts the packet and processes its TCP/IP information. To support this type of management it is required that all traffic on the selected PVC be RFC 1490 encapsulated, noncompressed IP traffic.

Shared PVC management is used to manage remote DSU IQs without being dependent on services from the remote router.

This usually requires a static route at the host location.

By setting a local PVC management and shared PVC management on the remote DSU IQ its IP address can be found through Inverse ARP.

Since the unit is set up for shared PVC management all management traffic will be intercepted prior to getting to the remote router.

Router Router

LAN LAN

TD1 RD1 TD2

RD2 TD

N RDN ALM

/TST

A

1

4

D

NEXT

7

SHIFT

2

E

B

5

PREV

8

DELETE

0

F

6

ADD

9

QUICK

#

DSU IQ

C

3

DSU IQ

Frame

Relay

TD1 RD1 TD2

RD2 TD

N RDN ALM

/TST

D

4

A

1

NEXT

7

SHIFT

B

2

E

5

PREV

8

DELETE

0

F

6

ADD

9

QUICK

#

DSU IQ

3

C

DSU IQ

NMS

Figure 4-4

Shared PVC Management Application


61200.212L1-1


Minimum Configuration Requirements for Shared PVC

Management

The following options are the minimum configuration requirements for establishing in-band shared PVC management. Once these options are configured, the unit may be accessed using

SNMP/TELNET. All options (with the exception of the MAN-

AGEMENT DLCI options) are found in the SYSTEM portion of the CONFIGURATION menu.

IP Address


Management DLCI 1 and/or DLCI 2

Enter the management DLCI(s) used to carry management traffic to and from the network. This option is found in the NETWORK

PORT portion of the CONFIGURATION menu.

Management DLCI 1 and/or DLCI 2 Mode

Set to DEDICATED if the management DLCI is used only to manage the DSU IQ (and not used to carry customer traffic). If set to DEDICATED, the router is not notified of that DLCI. Set to

SHARED if the DLCI is used to carry customer traffic as well as management data. This option is found in the NETWORK PORT portion of the CONFIGURATION menu.

The DSU IQ unit supports management from two network DLCIs either shared or dedicated.



Set the read community name to match the NMS settings.









Enter the IP address of the SNMP manager to which the DSU IQ sends traps. This selection is found under TRAP MGR OPTIONS in the SYSTEM portion of the CONFIGURATION menu.



Dedicated PVC Management

Dedicated PVC management refers to the ability to have a PVC originated from the network and terminated in the DSU IQ.

This is an ideal configuration for third-party management. It isolates the customer’s data traffic from network management traffic and it also acts as a fire-wall that restricts management data to the DSU. Dedicated PVC management is also ideal when the user wants to guarantee access to a remote DSU regardless of the state of the remote LAN.

Carrier NMS

LAN

Router Router

LAN

TD1 RD1 TD2

RD2

TDN RDN ALM

/TST

1

A

4

D

NEXT

7

SHIFT

2

E

B

5

PREV

8

DELETE

0

6

F

ADD

9

C

3

DSU IQ

QUICK

#

DSU IQ

Frame

Relay

TD1 RD1 TD2

RD2

TDN RDN ALM

/TST

A

1

4

D

NEXT

7

SHIFT

2

E

B

5

PREV

8

DELETE

0

6

F

ADD

9

C

3

DSU IQ

QUICK

#

DSU IQ

Figure 4-5

Dedicated PVC Management Application

Minimum Configuration Requirements for Dedicated PVC

Management

The configuration requirements for dedicated PVC management are identical to those listed for shared PVC management. See the previous section, Minimum Configuration Requirements for

Shared PVC Management, for more information.



DIAL BACKUP APPLICATION

The DSU IQ dial backup (DBU) options allow frame relay circuit outage recovery for one user to network interface (UNI) at a time. The DSU IQ can be configured to originate a call based on physical layer conditions and/or PVC signaling loss. Once the criteria is met, the DSU IQ establishes a call to the configured phone number (see Table 4-A) and the connection is used to carry traffic for the PVC(s) configured for DBU operation.

The DSU IQ's two-port design allows the DSU IQ receiving the call to continue to use the DDS frame relay circuit for PVCs that are not affected by the outage, while using the DBU interface for

PVCs that are inactive due to the outage. This is done (without the attached DTE device's intervention) by modifying the status of PVCs that are in DBU state to active when the PVC status is given to the DTE. A DSU IQ with multiple PVCs to multiple sites can also originate a call to one site during an outage and restore connection for PVCs to that destination. Since the DSU

IQ can only make one call at a time, the other PVCs to other sites in this scenario will be inactive.

Information entered into the PVC Configuration Table (see Table

4-B) marks PVCs for DBU operation. The key element in each entry of the table is the DBU DLCI. For each PVC connecting two sites for DBU operation, the DLCI field represents the PVC

DLCI at the local UNI and the DBU DLCI represents the PVC

DLCI at the remote site UNI. The DSU IQ uses this information in the outbound side to change the PVC DLCI so the far end

DTE device receives frames on the DBU PVC addressed in the same manner as when the frame relay circuit is operational. For

PVCs not used for DBU operation, leave the DBU DLCI field set to zero.



LAN

SITE A

Router

The DBU DLCI information is only required for the DSU IQ originating the call. In cases such as remote sites establishing calls to host sites, the host site with multiple PVCs should have only non-zero values for the DBU DLCI fields in the PVC

Configuration Table.

Only PVCs that are used in DBU should have the DBU DLCI set to a non-zero value.

The range for the DBU DLCI field is from 15-1007. Therefore, you cannot manually enter 0 for the PVCs not used in DBU.

When an entry is first created with the ADD selection, it is set to

0 by default. To reset a previously configured DBU DLCI to 0, delete the entry and then add it back in (using the DELETE and

ADD selections).

See Figure 4-6 for an example of a dial backup application.

Tables 4-A and 4-B provide example setups for the DBU Options

(CONFIG ->DIAL BACKUP) and the PVC Configuration Table

(CONFIG ->NETWORK PORT ->PVC CONFIG). The tables are based on the example application shown in Figure 4-6. Please note that the configuration selections given may need modification based on your network configuration.

DSU IQ

NET

DTE

DBU

ISDN or

POTS Network

16 116

17

Frame Relay

117

DSU IQ

NET

DTE

DBU

DSU IQ

NET

DTE

DBU

SITE B

Router

SITE C

Router

LAN

LAN

Figure 4-6

Dial Backup Application



Table 4-A

Example Settings for Dial Backup Options

AUTO DBU

WITH OOS

WITH NO RX

WITH NO SC

WITH NO LMI

FAIL TIMER

RESTORE TIMER

REDIAL COUNTER

WAIT TO REDIAL

PHONE NUMBERS

Enable

Disable

Disable

Disable

Enable

10 seconds

1 minute

5

15 seconds

Enter phone number to reach far end.

DLCI

DBU DLCI

SEQ #

PVC DELAY

SITE A

(ENTRY #1)

16

116 or 0 *

Enable

Enable

Table 4-B

Example Settings for PVC Configuration Table

SITE A

(ENTRY #2)

17

117 or 0 **

Enable

Enable

SITE B

116

16

Enable

Enable

SITE C

117

17

Enable

Enable

* DBU DLCI should be zero if Site B is not designated as the primary remote.

** DBU DLCI should be zero if Site C is not designated as the primary remote.

Both DBU DLCI entries for Site A should be zero if only the remotes are the originate call.




Chapter 5. Configuration Overview

Chapter 5

Configuration Overview

LOCAL AND REMOTE CONFIGURATION

The DSU IQ can be configured locally or, when using the VT 100 interface, communications can be established so a local DSU IQ can configure a remote DSU IQ. See the chapter Operation for information on selecting Local or Remote operation.

The Configuration menu consists of submenus relating to specific interfaces or functions of the DSU IQ requiring setup:

DTE Port

Network Port

Dial Backup (when an ESP DBU card is installed)

Control Port (front panel only)

System

The terminal configuration menu is shown in Figure 5-1.

For detailed information on configuration see the chapters DTE

Port Configuration, Configuring the Network Port, Configuring Dial

Backup Options, and System Configuration.



Configuration menu trees are shown in Figures 5-2 (for the Front

Panel) and 5-3 (for the terminal interface).

Figure 5-1

Terminal Configuration Menu



Page holder for foldout page (Figure 5-2)



Page holder for back of foldout page (Figure 5-2)



Pageholder for foldout page (Figure 5-3)



Page holder for back of foldout page (Figure 5-3)



1 PHYS LYR OPT

1 DTE PORT

2 FR OPTS

1 T392

2 N392

3 N393

4 MGMT DLCI DISABLED

5 MGMT PVC OPT ENABLED

ALWAYS ON

6 SIG RESPONSES FOLLOW NET

2 NETWORK PORT

1 CONFIG 3 DIAL BACKUP**

4 CONTROL PORT

5 SYSTEM

See the chapter Configuring Dial Backup Options for this portion of the menu tree.

1 BAUD RATE

1 IP ADDRESS

2 SUBNET MASK*

3 GW IP ADDRESS*

4 CNTL PORT MODE

5 RD COM NAME

6 WR COM NAME

7 TRAP MGR OPTS

8 SYSTEM TIME

9 SYSTEM DATE

A HST INT SIZE

5 MIN

10 MIN

15 MIN

20 MIN

30 MIN

TERMINAL

SLIP PROTOCOL

PPP PROTOCOL

1 TRAP DLCI

2 TRAP IP

3 TRAP PORT

1 INTERFACE

2 BIT RATE

EIA-232

V. 35

56K

64K

3 FLOW CONTROL

4 CTS OPTION FORCED ON

FOL RTS

5 DSR OPTION

6 CD OPTION

FORCED ON

NORMAL

NONE

HARDWARE

FECN/BECN

1 PHYS LYR OPT

9600

19.2K

38.4K

2 FR OPT

NONE

DTE PORT

NETWORK PORT

3 DLCI 1

4 DLCI 2

5 DLCI 1 MODE

CONTROL PORT 6 DLCI 2 MODE

ETHERNET PORT* 7 PVC COUNT

8 HST INT COUNT

9 PVC CONFIG

1 LOOP RATE

AUTO

56K

64K

2 CLOCK SOURCE INTERNAL

FROM NETWORK

SHARED

DEDICATED

1 SIGNAL

2 T391

3 N391

4 N392

5 N393

1 DLCI

2 DBU DLCI

3 CIR (KBPS)

4 SEQ #

5 PVC DELAY

NONE

LMI

ANSI

ITU-T

AUTO

DISABLED

ENABLED

*Only available if the ESP ethernet card is installed.

**Only available if an ESP DBU card is installed.

Figure 5-2

Front Panel Configuration Menu Tree





1 PHYSICAL LAYER OPTIONS

1 DTE PORT

2 NETWORK PORT

2 FRAME RELAY OPTIONS


1 T392

2 N392

3 N393

4 MANAGEMENT DLCI

5 MANAGEMENT PVC OPTION

6 SIGNALING RESPONSES

1 LOOP RATE

1 CONFIG

3 DIAL BACKUP**

4 SYSTEM

2 CLOCK SOURCE


3 MANAGEMENT DLCI 1

4 MANAGEMENT DLCI 2

5 MANAGEMENT DLCI 1 MODE


7 PVC COUNT

8 HISTORY INTERVAL COUNT

9 PVC OPTIONS

See the chapter Configuring Dial Backup

Options for this portion of the menu tree.

1 CHANGE PASSWORD

2 IP ADDRESS

3 SUBNET MASK*

4 GATEWAY IP ADDRESS*

5 CONTROL PORT MODE

6 READ COMMUNITY NAME

7 WRITE COMMUNITY NAME

8 TRAP MGR OPTIONS

9 SYSTEM TIME

10 SYSTEM DATE

11 HISTORY INTERVAL SIZE

1 SHARED

2 DEDICATED

1 TERMINAL

2 SLIP PROTOCOL

3 PPP PROTOCOL

1 5 MINUTES

2 10 MINUTES

3 15 MINUTES

4 20 MINUTES

5 30 MINUTES

*Only available if the ESP ethernet card is installed.

**Only available if an ESP DBU card is installed.

Figure 5-3

Terminal Configuration Menu Tree

1 ENABLED

2 DISABLED

1 ALWAYS ON

2 FOLLOW NETWORK

1 56 K

2 64 K

3 AUTO

1 INTERNAL

2 FROM NETWORK

1 DLCI

2 DBU DLCI

3 CIR (Kbps)

4 SEQ NUM CHECKING

5 DELAY MEASUREMENT

6 NEXT

7 PREVIOUS

8 ADD

9 DELETE

1 TRAP MANAGER DLCI

2 TRAP MANAGER IP ADDRESS

3 TRAP MANAGER PORT

4 NEXT

5 PREVIOUS

6 ADD

7 DELETE


1 NONE

2 DTE PORT

3 NETWORK PORT

4 CONTROL PORT

5 ETHERNET PORT*

1 INTERFACE TYPE

2 BIT RATE

3 FLOW CONTROL

4 CTS OPTION

5 DSR OPTION

6 CD OPTION

1 SIGNAL TYPE

2 T391

3 N391

4 N392

5 N393

1 EIA-232

2 V. 35

1 56K

2 64K

1 NONE

2 HARDWARE

3 FECN/BECN

1 FORCED ON

2 FOLLOW RTS

1 FORCED ON

2 NORMAL

1 NONE

2 LMI

3 ANSI T1.617-D

4 ITU-T Q.933-A

5 AUTO

1 DISABLED

2 ENABLED



Chapter 6. DTE Port Configuration

Chapter 6

DTE Port Configuration

Configure the physical layer and frame relay protocol options for the DTE port located on the rear of the DSU IQ by selecting DTE

PORT from the CONFIGURATION menu. Figure 6-1 illustrates the terminal CONFIGURATION menu for the DTE port. The menu tree in Figure 6-2 shows the choices available in this menu.

61200.212L1-1

Figure 6-1

Terminal DTE Port Configuration Menu





1 CONFIG 1 DTE PORT



1 INTERFACE TYPE

2 BIT RATE

3 FLOW CONTROL

4 CTS OPTION

1 EIA-232

2 V. 35

1 56 Kbps

2 64 Kbps

1 NONE

2 HARDWARE

3 FECN/BECN

1 FORCED ON

2 FOLLOW RTS

5 DSR OPTION

6 CD OPTION

1 FORCED ON

2 NORMAL

1 T392

2 N392

3 N393

4 MANAGEMENT DLCI

5 MANAGEMENT PVC OPTION 1 ENABLED

2 DISABLED

6 SIGNALING RESPONSES 1 ALWAYS ON

2 FOLLOW NETWORK

Physical Layer Options (PHYS LYR OPT)

Interface Type (INTERFACE)

Select the connector type for the DTE interface. The choices are

V.35 and EIA-232. See the appendix Pinouts for the connector pin assignments.

Bit Rate

Set the operating speed of the DTE interface to 56 or 64 kbps.

Flow Control

Figure 6-2

DTE Port Menu Tree

This option determines how the DSU IQ responds to congestion during DBU operation.



None

No flow control is used and the DSU IQ drops frames during severe congestion while in DBU operation.

Hardware

The DSU IQ varies the DTE TC clock as necessary to relieve congestion during DBU operation.

FECN/BECN

While in a congested state during DBU operation, frames across the DBU PVCs have FECN or BECN set depending on the direction. Frames outbound to the network have FECN set, while frames inbound to the attached DTE device have BECN set. This method is useful if the attached DTE devices can respond to congestion notification.

CTS Option

DSR Option

Set the DSR lead to FORCED ON or NORMAL.

Forced On

The DSR lead remains on.

Normal

The DSR lead is off when the DSU IQ is in a DSU loopback test or is out of service (OOS).

CD Option

Set the CTS lead to FORCED ON or FOLLOW RTS.

Forced On

The CTS lead remains on and request to send (RTS) is ignored as long as the unit is synchronized and able to pass data.

Follow RTS (FOL RTS)

The CTS lead follows the RTS lead with minimum delay.

Set the CD lead to FORCED ON or NORMAL.



Forced On

The CD lead remains on.

Normal

The CD lead is off when the DSU IQ is OOS.

Frame Relay Options (FR OPTS)

The frame relay protocol is a synchronous protocol used to concentrate two different devices into a common frame relay link to the network. The DSU IQ accepts frame relay frames from a router or a FRAD (frame relay access device) and routes to/from the network port based on the DLCI address.

T392

Set the timeout (in seconds) between polling intervals. This parameter needs to be a few seconds longer than the T391 setting of the attached frame relay device.

N392 and N393

These parameters define the error threshold for the UNI (user to network interface) formed by the DSU IQ DTE port and the attached frame relay device. If the error threshold is met, the signaling state status is changed to down, which indicates a service-affecting condition. This condition is cleared once N393 consecutive error-free events are received. N392 defines the number of errors required in a given event window, while N393 defines the number of polling events in each window.

For example:

If N392=3 and N393=4, then if three errors occur within any four events the interface is determined inactive.

The status of the connection can be viewed in the Status menu under DTE Port Signaling State. The status will return to active once the threshold is no longer exceeded.



Management DLCI (MGMT DLCI)

To use local PVC management, enter the management data link connection identifier (DLCI). The management DLCI is a special

DLCI used between the attached DTE device and the DSU IQ to carry SNMP and TELNET packets to/from the DSU IQ on the

DTE port.

Guidelines for Configuring Management DLCI

If the attached router or FRAD is used to route SNMP/TELNET frames to the DSU IQ, set the Management DLCI to a unique value (between 16 and 1007) that identifies the virtual circuit between the router/FRAD and the DSU IQ. The router/FRAD must also be configured to route the DSU IQ IP address to this

DLCI. The IP address and subnet mask for the DTE port must also be set in the SYSTEM portion of the CONFIGURATION menu.

Management PVC Option (MGMT PVC OPT)

If this option is set to ENABLED, the management DLCI is included in the Full Status response to the router. Enable this option when the management DLCI is used to route management traffic to the DSU IQ.

Signaling Responses (SIG RESPONSES)

This option determines when PVC signaling responses are sent to the router.

Always On

If ENABLED, PVC signaling responses are sent to the router regardless of the network signaling state. Enable this option when the DSU IQ is used for dial backup.

Follow Network (FOLLOW NET)

If ENABLED, PVC signaling responses are sent to the router only when the network signaling state is up. Enable this option when the router is going to use an alternate path for dial backup.




Chapter 7. Configuring the Network Port

Chapter 7

Configuring the Network Port

NETWORK PORT

Access the network port menus by selecting NETWORK PORT from the CONFIGURATION menu. See the menu tree in Figure

7-1. The network port terminates the user end of the frame relay

UNI interface. The DSU IQ supports three standard PVC signaling formats: LMI, ANSI T1.617-D, and ITU Q.933-A. The selected signaling format is used to poll the network end of the

UNI interface and retrieve virtual circuit information. Optionally, the polling process can be disabled.

1 CONFIG 2 NETWORK PORT

1 PHYSICAL LAYER OPTIONS 1 LOOP RATE

2 CLOCK SOURCE

1 56 K

2 64 K

3 AUTO

1 INTERNAL

2 FROM NETWORK


3 MANAGEMENT DLCI 1

4 MANAGEMENT DLCI 2



7 MAX PVC COUNT

8 HISTORY INTERVAL COUNT

9 PVC OPTIONS

1 SHARED

2 DEDICATED

1 SIGNAL TYPE

2 T391

3 N391

4 N392

5 N393

1 DLCI

2 DBU DLCI

3 CIR (Kbps)

4 SEQ NUM CHECKING

5 DELAY MEASUREMENT

6 NEXT

7 PREVIOUS

8 ADD

9 DELETE

1 NONE

2 LMI

3 ANSI T1.617-D

4 ITU-T Q.933-A

5 AUTO

1 DISABLED

2 ENABLED

Figure 7-1

Network Port Configuration Menu Tree



When configuring from a terminal, the screen in Figure

7-2 will appear when NETWORK PORT is selected.



Figure 7-2

Terminal Network Port Configuration Menu

Physical Layer Options (PHYS LYR OPT)

The following sections describe the physical layer options available for the network port:

Loop Rate

Set the loop rate for 56 kbps, 64 kbps, or auto.



Clock Source

Configure the DSU IQ to derive clocking from itself (INTER-

NAL) or from the network. The most common application is

FROM NETWORK.

Frame Relay Options (FR OPT)

The terminal screen in Figure 7-3 appears when you select

FRAME RELAY OPTIONS from the network configuration menu.

Figure 7-3

Terminal Network Port Frame Relay Options Menu

Signal Type (SIGNAL)

Set the signaling type option to match the network signaling type. Choices are none, LMI (gang of four), ANSI T1.617-D

(Annex D), ITU-T Q.933-A (Annex A), or auto. AUTO mode forces the DSU IQ to use the same signaling type as the attached


Chapter 7. Configuring the Network Port frame relay DTE. If AUTO is selected and there is no DTE device attached, the DSU IQ uses ANSI T1.617-D signaling type.

T391

Set the time (in seconds) between polls to the frame relay network.

N391

Determine how many link integrity polls occur in between full status polls.

N392 and N393

These parameters define the error threshold for the UNI formed by the DSU IQ network port and the frame relay switch. If the error threshold is met, the signaling state status is changed to down, which indicates a service-affecting condition. This condition is cleared once N393 consecutive error-free events are received. N392 defines the number of errors required in a given event window, while N393 defines the number of polling events in each window.

For example:

If N392=3 and N393= 4, then if three errors occur within any four events the interface is determined inactive.

The status of the connection can be viewed in the Statistics menu under Network Port Signaling State. The status will return to active again once the threshold is no longer exceeded.

The network service provider should recommend the values entered into the T391, N391, N392, and N393 fields.

Management DLCI 1 and 2 (DLCI 1 and 2)

Enter the management data link connection identifiers (DLCIs).

These DLCIs are used to carry management traffic to and from the network.



Management DLCI 1 and 2 Mode (DLCI 1 and 2 MODE)

Max PVC Count

Set to DEDICATED if the management DLCI is used only to manage the DSU IQ (and not used to carry customer traffic). If set to DEDICATED, the router is not notified of that DLCI. Set to

SHARED if the management DLCI is used for carrying customer traffic and management data.

Sets the maximum number of PVCs that the DSU IQ will monitor for statistical information. This value determines the amount of history intervals available for storage. To get the maximum amount of statistical history storage, set this value equal to the number of PVCs assigned to the frame relay port. A smaller value increases history interval count but puts some of the PVC statistics into the unknown category.

History Interval Count (HST INT COUNT)

Sets the number of history intervals to store for statistics. History intervals are displayed in the View by Interval portions of the Statistics menus. These views provide data divided into columns grouped by the interval of time selected in the History

Interval Size field (see the chapter System Configuration for more information). The History Interval Count field determines how many intervals can be stored at a time. The maximum value allowed is affected by the previously mentioned PVC Count selection.

PVC Options (PVC CONFIG)

The information in this menu must be entered for each PVC.

DLCI numbers and their corresponding CIRs are provided by the service provider.

When configuring PVC options using the front panel the Next, Prev,

Add , and Delete keys are used. See the chapter Operation for more information on front panel operation.



DLCI

Enter the Network DLCI.

DBU DLCI

Enter the far end DLCI for each PVC used for dial backup. Only the DSU IQ that originates the call is required to have this option set.

Only PVCs that are used in DBU should have the DBU DLCI set to a non-zero value.

The range for the DBU DLCI field is from 15-1007. Therefore, you cannot manually enter 0 for the PVCs not used in DBU.

When an entry is first created with the ADD selection, it is set to

0 by default. To reset a previously configured DBU DLCI to 0, delete the entry and then add it back in (using the DELETE and

ADD selections).

CIR <Kbps>

Enter the CIR (committed information rate) in kbps for the corresponding DLCI. The information is provided by your service provider and must be entered for each PVC.

Seq Num Checking (SEQ #)

56

Set to ENABLE only if there are DSU IQs on both ends of the

PVC. When enabled, the DSU IQ tags each frame with a sequence number which is then used by the remote DSU IQ to detect lost packets. Lost packet counts are given in the Statistics menus.

Delay Measurement (PVC DELAY)

Set to ENABLE only if there are DSU IQs on both ends of the

PVC. When enabled, the DSU IQ periodically transmits a loopback frame to the remote DSU IQ which is then returned to measure round trip delay of each PVC. Minimum, maximum, and average delay measurements are given in the Statistics menus.



Next (NEXT key on front panel)

Edit the next entry in the PVC Options table.

Previous (PREV key on front panel)

Edit the previous entry in the PVC Options table.

Add (ADD key on front panel)

Add a new entry to the PVC Options table.

Delete (DELETE key on front panel)

Delete the current entry in the PVC Options table.




Chapter 8. Configuring Dial Backup Options

Chapter 8

Configuring Dial Backup Options

DIAL BACKUP OPTIONS

The Dial Backup Configuration menu (Figure 8-1) is available only when an optional ESP DBU card is installed in the DSU IQ.

Use this menu to configure DBU options such as auto DBU capability, DBU criteria, DBU timer functions, and DBU phone numbers. See Figure 8-2 for a complete menu tree of the DBU selections.

61200.212L1-1

Figure 8-1

DBU Options Menu (V.34 DBU card installed)



60

1 CONFIG DBU

1 AUTO DBU

2 DBU OPTIONS

3 DBU CRITERIA

4 DBU TIMERS

1 DISABLE

2 ENABLE

1 BEEP ENABLE

2 PASSWORD ENABLE

3 DBU PASSWORD

4 DAILY LOCKOUT

5 LOCKOUT START

6 LOCKOUT END

7 WEEKEND LOCK

1 WITH OOS

2 WITH NO RX

3 WITH NO SC

4 WITH NO LMI

1 FAIL TIMER

2 RESTORE TIMER

3 REDIAL COUNTER

4 WAIT TO REDIAL

5 MODEM OPTIONS

With V.34 DBU option card installed

1 TONE/PULSE

1 DISABLE

2 ENABLE

1 DISABLE

2 ENABLE

1 DISABLE

2 ENABLE

1 TONE

2 PULSE

5 ISDN OPTIONS

With ISDN DBU option card installed

1 SWITCH TYPE

2 B-CHANNEL BIT RATE

3 SPID 1

4 SPID 2

5 LDN 1

6 LDN 2

1 AT&T 5ESS

2 DMS100

3 NATIONAL

4 NEC

1 56K

2 64K

5 DCE OPTIONS

With external DCE option card installed

1 INTERFACE TYPE 1 EIA-232

2 V.35

2 DBU BIT RATE 0-1536 kbps

6 PHONE NUMBERS NUM 1-5

Figure 8-2

Dial Backup Menu Tree



Dial backup is only supported when the unit is operated in point-topoint mode.

Auto DBU

DBU Options

The AUTOMATIC DBU option specifies whether the unit automatically enters dial backup mode or waits for manual setup. The factory default setting is DISABLE.

61200.212L1-1

Beep Enable

If enabled, the DSU IQ issues an intermittent beep while in dial backup.

Password Enable (PASSWRD ENABLE)

When enabled, the passwords entered in the DBU PASSWORD fields of both the near and far end DSU IQs are required to match before a dial backup connection can be made. The setting in this field must also be identical in both units (i.e., they both must be set to either ENABLED or DISABLED).

DBU Password

Enter the authentication string used for making a dial backup connection. The near and far end DSU IQ DBU passwords must be identical. If using front panel entry, see the section Entering

Letters Using the Front Panel in the chapter System Configuration for more information.

Daily Lockout

Enable/disable the daily lockout specified by the fields LOCK-

OUT START and LOCKOUT END.

Lockout Start (LCKOUT START)

Enter the hour that the daily lockout begins and dial backup is disabled (0 to 23). This setting only applies if the DAILY LOCK-

OUT parameter is enabled.

Lockout End

Enter the hour that the daily lockout ends and dial backup is


Chapter 8. Configuring Dial Backup Options reactivated (0 to 23). This setting only applies if the DAILY

LOCKOUT parameter is enabled.

Weekend Lock

If enabled, no backup will occur from midnight Friday to midnight Sunday.

DBU Criteria

With OOS

When enabled, the DSU IQ enters backup mode if an out-ofservice condition is detected. The factory default setting is

ENABLE.

With No RX

When enabled, the DSU IQ enters backup mode when a loss of signal is detected. The factory default setting is ENABLE.

With No SC

When enabled, the DSU IQ enters backup mode when a loss of sealing current is detected. The factory default setting is EN-

ABLE.

With No LMI

When enabled, the DSU IQ enters backup mode when a loss of signaling from the frame relay switch is detected. The default setting is ENABLE.

DBU Timers

Fail Timer

This option sets the amount of time the dedicated circuit failure condition must be active before the DSU IQ attempts backup.

The value entered is multiplied by 10. The amount of time can be up to 990 seconds (i.e., an entry of 99). The factory default setting is 10 seconds (an entry of 1).

Restore Timer

Once the DDS circuit is down, the DSU IQ remains in backup until the DDS circuit is active for the length of time specified for the restore timer. The selection is entered in minutes (up to 255).



If set to 0, the DDS must be restored manually. The factory default setting is 1 minute.

Redial Counter

This option sets the number of times the DSU IQ redials the far end when entering backup mode. The redial count, which is manually entered, can be up to a maximum of 99 attempts. If the

DSU IQ encounters a busy or reorder, it attempts to establish the call the specified number of times. The factory default setting is

5.

Wait to Redial

This option works in conjunction with the preceding Redial

Counter. It selects the amount of time between redial attempts to connect the backup line. The amount of time, which is manually entered, can be up to 99 seconds. The factory default setting is

15 seconds.

DBU Card Options

The following selections are dependent upon the type of ESP

DBU card installed (if any). If no card is installed or if the ESP 4-

Wire SW56 card is installed, then the selections in this section do not appear. If the ESP V.34 DBU card is installed, the MODEM

OPTIONS selection is available. If the ESP ISDN DBU card is installed, the ISDN OPTIONS selection is available.

Modem Options

The Modem Options field is available when the ESP V.34 DBU card is installed. Select the dialing method for the dial backup service (tone or pulse).

ISDN Options

The ISDN Options field is available when the ESP ISDN DBU card is installed.

Switch Type

Select which type of telco CO switch is providing the ISDN service. There are four options for ISDN switch types:



• AT&T 5ESS

• DMS100

• National

• NEC

B-Channel Bit Rate (B-CH BIT RATE)

Select the channel bit rate for the ISDN service. Select 64k unless your service only provides 56k.

SPID 1/2

For ISDN dial backup, enter the service profile identifier (SPID) for both B-channels. The SPID is a sequence of digits identifying

ISDN terminal equipment to the ISDN switch when more than one ISDN set has been attached to the same central office line.

The SPID is assigned by the telco when the ISDN line is installed and normally resembles the phone number.

Only the AT&T 5ESS switch is capable of recognizing a point-topoint configuration, eliminating the need for a SPID. All other switch types require a SPID.

LDN 1/2

For ISDN dial backup, enter the LDN for both B-channels.

DCE Options

The DCE Options field is available when the ESP External DCE option card is installed.

Interface Type

Select the connector type for the DCE interface. The choices are

EIA-232 and V.35.

DBU Bit Rate

Set to the operating speed of the DBU interface (0-1536 kbps).

Phone Numbers 1-5

The DSU IQ stores up to 5 numbers of 36 digits each. Edit a phone number by reentering the entire number. This process overwrites the previously stored number.


Chapter 9. System Configuration

Chapter 9

System Configuration

Access System configuration selections by first choosing CON-

FIGURATION from the Main menu. Then choose SYSTEM from the Configuration Menu. Full menu trees for the System Configuration selections are shown in Figures 5-2 (Front Panel

Configuration Menu Tree) and 5-3 (Terminal Configuration Menu

Tree). The Terminal System Configuration menu is shown in

Figure 9-1.

Change Password (not available on front panel)

Enter a new password of ten characters or less. The default password is adtran.

IP Address

Enter the DSU IQ IP (internet protocol) address.

Subnet Mask

Enter the subnet mask assigned to the LAN that the ESP ethernet card is attached to. This option is only available if the ESP ethernet card is installed.



Figure 9-1

System Configuration Menu

Gateway IP Address (GW IP ADDRESS)

Enter the gateway IP address. The gateway is used when an ethernet packet is transmitted from the DSU IQ to a foreign subnet. This option is only available if the ESP ethernet card is installed.

Control Port Mode (CNTL PORT MODE)

Set the control port for terminal, SLIP protocol, or PPP protocol mode. Set for SLIP or PPP when using the control port for an

SNMP/TELNET path.

Read Community Name (RD COM NAME)

Enter the authentication strings used for SNMP management.

Match the DSU IQ to the SNMP manager for read privileges. If using front panel entry, see the section Entering Letters Using the

Front Panel in this chapter for more information.



Write Community Name (WR COM NAME)

Enter the authentication strings used for SNMP management.

Match the DSU IQ to the SNMP manager for write privileges.

If using front panel entry, see the section Entering Letters Using

the Front Panel in this chapter for more information.

Trap Mgr Options

The Trap Manager Options table defines routes for up to five

SNMP managers.

Trap Manager DLCI (TRAP DLCI)

If the trap manager port is set for Network or DTE, this parameter identifies the virtual circuit used for all traps generated by the DSU IQ.

Trap Manager IP Address (TRAP IP)

Enter the IP address of the SNMP manager to which the DSU IQ sends traps.

Trap Manager Port (TRAP PORT)

Enter the DSU IQ port used to transmit traps to the SNMP manager. Choices are NONE, DTE PORT, NETWORK PORT,

CONTROL PORT, and ETHERNET PORT. The ETHERNET

PORT selection is only available if the ESP ethernet card is installed.

Next (NEXT key on front panel)

Edit the next entry in the Trap Manager Options table.

Previous (PREV key on front panel)

Edit the previous entry in the Trap Manager Options table.



Add (ADD key on front panel)

Add a new entry to the Trap Manager Options table.

Delete (DELETE key on front panel)

Delete the current entry in the Trap Manager Options table.

System Time/Date

Set the current hour, minute, day, month, and year. This is used to date/time stamp all statistical data captured by the DSU IQ.

History Interval Size (HST INT SIZE)

The time entered in this field affects the Interval View in the

STATISTICS menus. The Interval View provides historical data for the current day. The data is divided into columns grouped by the interval of time (5, 10, 15, 20, 25, or 30 minutes) selected in this field. The DSU IQ stores up to 157 intervals. Once the maximum is reached, new information overwrites existing information, beginning with the least current.

If data is not retrieved before it is overwritten, it cannot be restored.

Total Time Stored = History Interval Size x History Interval Count.

History interval size is configured in the System Configuration menu. History interval count is configured in the Network Configu- ration menu.



ENTERING LETTERS USING THE FRONT PANEL

Configuring the Read/Write Community Names requires the entry of letters rather than numbers. When configuring the unit using the front panel, special steps must be taken in order to perform these entries. The following example of entering the

Write Community Name illustrates this procedure:

1.

Press the corresponding number, then Enter to select WRITE

COMMUNITY NAME from the System Configuration menu.

2.

Press the Up Arrow to scroll to the desired character.

3.

Press Enter.

4.

Repeat steps 2 and 3 until all characters have been selected.

5.

Press the Enter key to complete the entry.




Chapter 10. Statistics

Chapter 10

Statistics

For descriptions of the terminal statistics menus see the following section, Viewing Statistical Information (Terminal Interface). For front panel menu descriptions, see the section Viewing Statistical

Information (Front Panel Interface).

VIEWING STATISTICAL INFORMATION (TERMINAL INTERFACE)

Select View Statistics from the Main menu to access the View

Statistics Menu shown in Figure 10-1. From this menu, select to view statistics for the ports (DTE, Network, or Dial Backup), all available DLCIs, or the system. Select Reset Statistics to clear all current information.



Figure 10-1

View Statistics Menu

Terminal Statistics Display Options

DTE port, network port, dial backup port and DLCI statistics are given in two formats: View by Interval and View by Day.

View by Interval

In this view, the first column is a running total for the current day. All other columns are grouped into user-configured time frames with the most recent information displayed on the left.

The first column's header displays the current date, and the interval columns display the time the intervals began. In order to categorize the interval columns by date also, the midnight time stamp is replaced with the date. Note that this column still represents the timed interval (not a day's worth of information).



To configure the interval time frame, go to the System Configuration menu under History Interval Size and select the time you want the history intervals to be set for (from 5 to 30 minutes, in five minute intervals). The DSU IQ gathers and displays the information according to the time selected.

The DSU IQ cuts the first gathering session short in order to begin falling on the selected time boundary. For example: If the unit or the statistics information was last reset at 12:03 and the History Interval is set for five minutes, then the first interval session will only last two minutes. Therefore, the first interval column (i.e., the column furthest to the right if no columns have been deleted yet) normally represents a time shorter than the other columns.

View by Day

This view provides historical information for the last seven days

(not including the current day). The most recent information is displayed on the left.

The first day's column (i.e., the column furthest to the right) does not represent a full day's worth of information (unless the unit or the statistics information was reset at exactly 12 AM).



Hot Keys

Once you have entered one of the statistics menus, hot keys are displayed across the bottom of the screen, allowing you to quickly access other menus or navigate within the current menu.

These keys vary depending on the menu currently displayed.

ESC=Menu

Press the ESC key to return to the main View Statistics menu

(shown in Figure 10-1).

D=DLCI

When viewing Network port statistics, press D to view the DLCI

Statistics menu shown in Figures 10-6.

C=Current

Press C to resume viewing current status information after a freeze.

F=Freeze

Press the F key to freeze the current statistics display.

Page (+, -)

Press the + and - keys to scroll through statistics menu pages.

Scroll (<, >)

Press the < and > keys to scroll left and right on a statistics menu page.

V=View by Day/View by Interval

Press V to change the view format.



The following sections describe the information given on the

DTE port, Network port, DBU port, DLCI, and System Statistics menus.

DTE Port Statistics

Information given is for the DTE port since the last reset. See

Figures 10-2 and 10-3 for the two DTE Port Statistics screen formats.

Leads On

If a lead has become active on the selected port since the last screen reset, it is listed in the View Statistics menu. See Figure

10-2.

RTS

DTR

CTS

DSR

DCD

Request to send

Data terminal ready

Clear to send

Data set ready

Data carrier detect


Figure 10-2

DTE Port Statistics (View by Interval)

75


76

Figure 10-3

DTE Port Statistics (View by Day)

Interval Remaining

Number of seconds remaining in the current timed interval.

Signaling State

Indicates if the frame relay signaling state is currently up or down.

Local PVC Rx Frames

Total frames received by the DTE port across the local management PVC.

Local PVC Rx Bytes

Total bytes received by the DTE port across the local management PVC.

Local PVC Tx Frames

Total frames transmitted by the DTE port across the local management PVC.


61200.212L1-1


Local PVC Tx Bytes

Total bytes transmitted by the DTE port across the local management PVC.

Signal Down Time

Time in seconds the signaling state is down.

Signal Errors

Number of signal frames received with PVC signaling protocol violations.

Signal Timeouts

Number of T392 timeouts that have occurred.

Signal State Change

Number of changes in the signaling protocol state.

Rx Full Status

Number of full status polls received on the DTE side.

Rx LI Only

Number of link integrity (LI) only polls received on the DTE side.

On the DTE side, transmit and receive counts for full status and link integrity polls would be identical. Therefore, only receive counts are given.

Discard Frame

Number of frames discarded by the DSU IQ due to bad IP frames received on the management DLCI, transmission errors, or link violations.

Aborts

Number of frames received without a closing flag. This transmission error is also reflected in the Discard Frame field.

CRC Errors

Number of frames received with CRC violations. This transmission error is also reflected in the Discard Frame field.



Octet Align

Number of frames received with a bit count that does not fall on

8-bit boundaries. This transmission error is also reflected in the

Discard Frame field.

Length Error

Number of frames received with fewer than 5 octets or greater than 4500 octets. This link violation is also reflected in the


EA Violation

Number of frames received with an error in the extended address (EA) bit field of the frame relay header.

Encapsulation Error

Number of frames received on the management DLCI that have

RFC 1490 errors.

Inactive DLCI

Number of frames received on an inactive DLCI.

Invalid DLCI

Number of frames received on a DLCI that is out of range. The valid DLCI range is 16-1007.

Unrouteable

Number of frames received on the management DLCI with an IP address that does not match the DSU IQ IP address.

Network Port Statistics

Information given is for the network port since the last reset. See

Figures 10-4 and 10-5 for both formats of the Network Port

Statistic screens.

Signaling State

Indicates if the signaling state is currently up or down.




61200.212L1-1


DSU State

Current state of the DSU. Possible states are listed in Table 10-A.

Table 10-A

Possible DSU States

DSU STATE

56K NORMAL

64K NORMAL

OPEN LOOP

DESCRIPTION

Normal 56 kbps loop rate

Normal 64 kbps loop rate

No sealing current and no Rx signal

OOS/OOF FROM NET Out of service code received from network

NO FRAME SYNC No frame sync for 64 kbps loop

DSU IN TEST

SCANNING

Test code received from network

In auto mode searching for loop rate

NO RX SIGNAL

CHECK TELCO

Sealing current present but no Rx signal

Cable with wiring problem

Rx Frames

Number of frames received by the network port.

Rx Bytes

Number of bytes received by the network port.

Maximum Rx Throughput

Maximum throughput sample in the receive direction for the given interval. This is displayed in kbps.

Average Rx Throughput

Average throughput in the receive direction for the given interval. This is displayed in kbps.

Maximum Rx Utilization

Maximum utilization sample in the receive direction for the given interval. Utilization is displayed as a percent of network port bandwidth.

Average Rx Utilization

Average utilization sample in the receive direction for the given interval. Utilization is displayed as a percent of network port bandwidth.



Tx Frames

Number of frames transmitted by the network port.

Tx Bytes

Number of bytes transmitted by the network port.

80

Figure 10-4

Network Port Statistics with ISDN DBU Card Installed (View by Interval)

Maximum Tx Throughput

Maximum throughput sample in the transmit direction for the given interval. This is displayed in kbps.

Average Tx Throughput

Average throughput in the transmit direction for the given interval. This is displayed in kbps.

Maximum Tx Utilization

Maximum utilization sample in the transmit direction for the given interval. Utilization is displayed as a percent of network port bandwidth.



Average Tx Utilization

Average utilization sample in the transmit direction for the given interval. Utilization is displayed as a percent of network port bandwidth.

61200.212L1-1

Figure 10-5

Network Port Statistics (View by Day)

Port UA Time

Time in seconds the network port is unavailable for data delivery. This means that the DDS link is down or in test, or that the frame relay signaling state is down.


Time in seconds the signaling state has been down.

Signal Errors

Number of signal frames received with PVC signaling protocol violations.

Signal Timeouts

Number of T391 timeouts that have occurred.





Rx Full Status

Number of full status responses received on the network side.

Tx Full Status

Number of full status polls transmitted by the DSU IQ.

Rx LI Only

Number of link integrity only responses received on the network side.

Tx LI Only

Number of link integrity polls transmitted by the DSU IQ.

Async Status

Number of asynchronous status messages received by the DSU

IQ.

Discard Frame

Number of frames discarded by the DSU IQ due to bad IP frames received on the dedicated management DLCI, transmission errors, or link violations.

Aborts


CRC Errors


Octet Align




DDS State Change

Count of state changes for the DDS port.


61200.212L1-1


DDS UA Time

Time in seconds the DDS link is down.

BPV/Frame Error

Number of frames received with bipolar violations. This transmission error is also reflected in the Discard Frame field.

Length Error



EA Violation

Number of frames received with an error in the extended address (EA) bit field of the frame relay header.


Number of frames received on a dedicated management DLCI that have RFC 1490 errors. These errors are also reflected in the

Discard Frames field.

If both management DLCIs are dedicated, the Encapsulation Error field is N/A. See the section Management DLCI Mode in the chapter

Configuring the Network Port for more information.

Inactive DLCI

Number of frames received on an inactive DLCI.

Invalid DLCI

Number of frames received on a DLCI that is out of range. The valid DLCI range is 16-1007.

Unrouteable

Number of frames received on a dedicated management DLCI with an IP address that does not match the DSU IQ IP address.

If both management DLCIs are dedicated, the Unrouteable field is

N/A. See the section Management DLCI Mode in the chapter




DBU Port Statistics

Information given is for the dial backup port since the last reset.

See Figures 10-6 and 10-7 for both formats of the DBU Port

Statistic screens.

DBU State

Current state of the DBU circuit.



Rx Frames

Number of frames received by the DBU port.

Rx Bytes

Number of bytes received by the DBU port.






Maximum utilization sample in the receive direction for the given interval. Utilization is displayed as a percent of DBU port bandwidth.


Average utilization sample in the receive direction for the given interval. Utilization is displayed as a percent of DBU port bandwidth.

Tx Frames

Number of frames transmitted by the DBU port.

Tx Bytes

Number of bytes transmitted by the DBU port.



61200.212L1-1

Figure 10-6

DBU Port Statistics (View by Interval)






Maximum utilization sample in the transmit direction for the given interval. Utilization is displayed as a percent of DBU port bandwidth.


Average utilization sample in the transmit direction for the given interval. Utilization is displayed as a percent of DBU port bandwidth.



86

Figure 10-7

DBU Port Statistics (View by Day)

Time in DBU

Time in seconds that the DBU port was active.

Discard Frame

Number of frames discarded by the DSU IQ due to bad IP frames received on the dedicated management DLCI, transmission errors, or link violations.

Aborts


CRC Errors


Octet Align





DLCI Statistics


Length Error




Number of frames received on a dedicated management DLCI that have RFC 1490 errors. These errors are also reflected in the

Discard Frames field.

If both management DLCIs are shared, the Encapsulation Error field is



Unrouteable

Number of frames received on a dedicated management DLCI with an IP address that does not match the DSU IQ IP address.

If both management DLCIs are shared, the Unrouteable field is



Access specific DLCI statistics by pressing D from the Network

Statistics menu. Enter the DLCI number for information on a specific DLCI (displayed in the View by Interval and Day formats). For a status summary of all available DLCIs, select

DLCI LIST from the View Statistic menu shown in Figure 10-1.

Figure 10-8 shows the statistics menu for a specific DLCI.



88

Figure 10-8

DLCI Statistics for a Specific DLCI (View by Interval)

DLCI Statistics for a Specific DLCI

Throughput (Tx and Rx)

Displays the current throughput sample for this PVC.

Utilization

Displays the current CIR utilization sample for this PVC.

Rx Frames

Number of frames received by the network port on the specified

DLCI.

Rx Bytes

Number of bytes received by the network port on the specified

DLCI.




61200.212L1-1





Maximum utilization sample in the receive direction for the given interval. Utilization is displayed as a percent of CIR.


Average utilization in the receive direction for the given interval.

Utilization is displayed as a percent of CIR.

Tx Frames

Number of frames transmitted by the network port on the specified DLCI.

Tx Bytes

Number of bytes transmitted by the network port on the specified DLCI.






Maximum utilization sample in the transmit direction for the given interval. Utilization is displayed as a percent of CIR.


Average utilization sample in the transmit direction for the given interval. Utilization is displayed as a percent of CIR.

Time in DBU

Time (in seconds) that the specified DLCI is in DBU mode.

PVC IA Time

Time in seconds that the PVC is in the inactive state.



Rx FECN

Number of frames received on the network port over the specified DLCI with the FECN bit of the frame relay header enabled.

Tx FECN

Number of frames transmitted from the network port over the specified DLCI with the FECN bit of the frame relay header enabled.

Rx BECN

Number of frames received on the network port over the specified DLCI with the BECN bit of the frame relay header enabled.

Tx BECN

Number of frames transmitted from the network port over the specified DLCI with the BECN bit of the frame relay header enabled.

Rx DE

Number of frames received on the network port over the specified DLCI with the discard eligibility (DE) bit of the frame relay header enabled.

Tx DE

Number of frames transmitted from the network port over the specified DLCI with the DE bit of the frame relay header enabled.

Rx CR

Number of frames received on the network port over the specified DLCI with the CR bit of the frame relay header enabled.

Tx CR

Number of frames transmitted from the network port over the specified DLCI with the CR bit of the frame relay header enabled.

Lost Frames

Number of frames lost across the PVC. This field is applicable only if the network port's Sequence Number Checking option


61200.212L1-1


(accessed through the Network Port Configuration menu) is

ENABLED.

Remote Lost Frames

Number of lost frames reported by the remote DSU IQ. This field is applicable only if the network port's Sequence Number

Checking option (accessed through the Network Port Configuration menu) is ENABLED.

Rx Burst Seconds

Amount of time (in seconds) that throughput in the receive direction is greater than CIR.

Tx Burst Seconds

Amount of time (in seconds) that throughput in the transmit direction is greater than CIR.

Minimum Rx Frame

Size of smallest frame received across the DLCI.

Maximum Rx Frame

Size of largest frame received across the DLCI.

Average Rx Frame

Average size of frames received across the DLCI.

Minimum Tx Frame

Size of smallest frame transmitted across the DLCI.

Maximum Tx Frame

Size of largest frame transmitted across the DLCI.

Average Tx Frame

Average size of frames transmitted across the DLCI.

Minimum Frame Delay

Minimum round trip delay of the DLCI. This field is applicable only if the network port's PVC Delay Measurement option


ENABLED.



Maximum Frame Delay

Maximum round trip delay of the DLCI. This field is applicable only if the network port's PVC Delay Measurement option


ENABLED.

Average Frame Delay

Average round trip delay of the DLCI. This field is applicable only if the network port's PVC Delay Measurement option


ENABLED.

PVC State Change

Number of changes in the PVC state.



Summary of All Available DLCIs

This menu lists all available DLCIs and classifies them as active

(A), inactive (I), or unknown (U). See Figure 10-9. A byte and frame break out of each DLCI is also provided including an in/ out count and a count of how many frames were received with

FECN, BECN, or DE (discard eligibility) enabled.

Figure 10-9

DLCI Statistics Summary for All Available DLCIs



System Statistics

The system time and date (as set in the System Configuration menu) are displayed in this menu. Also, the elapsed time since the unit was turned on (or since the last restart) is given in seconds. The buffer information provided in this menu is used mainly by ADTRAN technical support in troubleshooting situations. See Figure 10-10.

Figure 10-10

System Statistics Screen



VIEWING STATISTICAL INFORMATION (FRONT PANEL INTERFACE)

Select STATS from the Main menu. From this menu, choose to view DTE, Network, DBU, or System statistics or to reset the statistics. The first Statistics screen appears. Scroll through the remaining screens using the arrow keys. The number displayed in reverse video in the upper right-hand corner of the screen indicates which port the displayed information applies to

(1=DTE, N=Network, D=DBU). Statistic counts are running totals for the current day (i.e., since 12 AM).

DTE Port Statistics Available on Front Panel

RS

TR

CS

CD

SR

The following information is displayed when the DTE port is selected.

Control Signal Status Screen

An asterisk (*) indicates that the signal is active for the DTE port.

See Figure 10-11.

request to send data terminal ready clear to send carrier detect data set ready

RS TR CS CD SR

1

* *

61200.212L1-1

Figure 10-11

Control Signal Status Screen

Signal State

Current signaling state of DTE port (up or down). See Figure 10-

12.



SIGNAL STATE

DOWN

1

Figure 10-12

Signal State Screen



Signal Timeouts

Total T392 timeouts that have occurred since the last reset.

Signal Errors

Total signal frames received with PVC signaling protocol violations.

Errored Frames

Total errored frames received since last reset.

CRC Errors

Number of frames received with CRC violations.

Abort Frames

Total frames received without a closing flag.

Octet Align


8-bit boundaries.


Time in seconds that signaling state has been down.



Network Port Statistics Available on Front Panel

DSU Loop State

Current state of the incoming DDS circuit. Possible states are listed in Table 10-A.

DBU Status

Current state of the incoming DBU circuit.

Signal State

Current state of the network port (up or down).



Signal Timeouts

Total T391 timeouts that have occurred since the last reset.

Signal Errors

Total signal frames received with PVC signaling protocol violations.

Frames In

Total received frames since last reset.

Frames Out

Total transmitted frames since last reset.

Errored Frames

Total errored frames received since last reset.

CRC Errors

Number of frames received with CRC violations.

Abort Frames

Total frames received without a closing flag.

Octet Align


8-bit boundaries.



Port UA Time

Time in seconds the network port is unavailable for data delivery. This can mean that the DDS link is down or in test, or that the PVC signaling state is down.

BPV

Number of frames received with bipolar violations.

DBU Port Statistics Available on Front Panel

DBU Status

Current state of the DBU circuit.

Time in DBU

The amount of time (in seconds) that the unit has been in dial backup mode.

Frames In

Total received frames since the unit went into dial backup mode

(or since last reset).

Frames Out

Total transmitted frames since the unit went into dial backup mode (or since last reset).

Errored Frames

Total errored frames received since the unit went into dial backup mode (or since last reset).

CRC Errors

Number of frames received on the dial backup circuit with CRC violations.

Abort Frames

Total frames received on the dial backup circuit without a closing flag.

Octet Align

Number of frames received on the dial backup circuit with a bit count that does not fall on 8-bit boundaries.



DLCI List

Select DLCI LIST from the STATS menu to access a list of all

DLCIs recognized by the DSU IQ. Each DLCI listed is identified as ACTIVE, INACTIVE, or UNDEFINED. Use the NEXT and

PREV keys to scroll through the information.

System Statistics Available on Front Panel

Select SYS from the STATS menu to display the software version and checksum. This screen is shown in Figure 10-13. Press

Cancel to return to the STATS menu.

VERSION CHKSUM

VER 2.200 17AB

Figure 10-13

System Statistics Screen




Chapter 11. Testing

Chapter 11

Testing

This menu allows you to perform testing by initiating ping tests

(if the ESP ethernet card is installed) or PVC loopback tests. See

Figure 11-1 for the terminal Test menu. See Figure 11-2 for the

Front Panel menu tree.

61200.212L1-1

Figure 11-1

Terminal Test Menu (with ESP Ethernet Card Installed)


Chapter 11. Testing

3 TEST 1 PING

2 PVC LOOPBACK

1 PING ADDRESS

2 START PING

1 DLCI

2 START TEST

3 STOP TEST

4 VIEW TEST

PINGS TX

PINGS RX

MIN RESP TIME

MAX RESP TIME

AVG RESP TIME

FRAMES RX

MIN RESP TIME

MAX RESP TIME

AVG RESP TIME

LOST FRAMES

RMT LOST FRAMES

Figure 11-2

Front Panel Test Menu (with ESP Ethernet Card Installed)

Ping

Select 1 PING to send a ping request to a specific address.

Address to Ping (PING ADDRESS)

Enter the IP address of the unit the DSU IQ is sending an echo request (ping) to.

If the IP address is not manually configured into the IP route table, the path will be determined dynamically through RIP and inverse ARP protocols.

Start Ping

Results are shown once you start the ping. The Start Ping command causes the DSU IQ to send ten ping requests to the target station. At the end of the ten-ping test, the following results are shown:

Number of Pings Transmitted (PINGS TX)

This field shows the number of pings sent (always 10).


Chapter 11. Testing

Ping Responses (PINGS RX)

This field shows the number of responses received from the pinged device.

Min Response Time (MIN RESP TIME)

This field shows the shortest round-trip delay (in ms) of the received responses. Round-trip delay is counted from the time the ping is sent until the response is received.

Max Response Time (MAX RESP TIME)

This field shows the longest round-trip delay (in ms) of the received responses. If a response is not received before the unit times out, the delay is not calculated in.

Avg Response Time (AVG RESP TIME)

This field shows the average response time (in ms) based on all received responses.

PVC Loopback

A PVC loopback test is a non-intrusive loopback option for each

PVC. During this test, the DSU IQ periodically sends test frames to the remote DSU IQ which are then returned for analysis. The bandwidth required is approximately 1 kbps for each PVC in test. See Figure 11-3 for the terminal menu.


Chapter 11. Testing

104

Figure 11-3

PVC Loopback Menu

DLCI <0=all> (DLCI)

Enter the DLCI of the PVC to be tested (or enter 0 to test all available PVCs).

Test Len

Amount of time (in minutes) that you want the test to take place.

Enter 0 for a continuous test. This selection is not available on the front panel.

Start Test

Starts the test.

Stop Test

Ends the test in progress prematurely or terminates a continuous test.


Chapter 11. Testing

View Test

61200.212L1-1

Displays the Test Statistics menu shown in Figure 11-4. Descriptions of each field in the Test Statistics menu follow:

PVC Active/Inactive/Undefined

Displays current state of the selected PVC as determined by the switch.

• Active : The PVC is currently operational.

• Inactive : There is currently a physical or frame relay layer problem at the remote end of the PVC, or a problem exists inside the frame relay cloud for the selected PVC.

• Undefined: The PVC is undefined for the switch.

This field is not available on the front panel.

Test Active/No Test Active

Displays current testing state of the DSU IQ. This field is not available on the front panel.

Frames Rx

Number of frames received on the selected PVC during the current loopback test.

Frames Tx

Number of frames transmitted across the selected PVC during the current loopback test.

Lost Frames

Number of packets dropped in the receiving direction (traveling from the remote DSU IQ to the local DSU IQ).

Remote Lost Frames

Number of packets dropped in the transmitting direction

(traveling from the local DSU IQ to the remote DSU IQ).

Minimum Loop Response Time (MIN RESP TIME)

Minimum round-trip time (in milliseconds) for the current test.

Maximum Loop Response Time (MAX RESP TIME)

Maximum round-trip time (in milliseconds) for the current test.


Chapter 11. Testing

Average Loop Response Time (AVG RESP TIME)

Average round-trip time (in milliseconds) for the current test.

106

Figure 11-4

Test Status Screen

Reset Test Stats

Resets the information shown in the Test Statistics menu.

View DLCI List

See the section Summary of All Available DLCIs in the chapter

Statistics for a description of this menu.


Chapter 12. Activating Dialing Functions

Chapter 12

Activating Dialing Functions

DIALING OPTIONS

The dial options available from the Main menu (4=DIAL) appear in Figure 12-1.

4 DIAL

1 DIAL BACKUP

2 STAY ON LEASED

During Dial Backup

1 HANG UP

2 STAY ON LINE

Dial Backup Idle

1 DIAL STORED #

2 ENTER DIAL #

Select stored number.

Enter number to dial.

Figure 12-1

Dial Options Menu

Dial Options when Dial Backup is Idle

Dial Backup

The DSU IQ prompts to dial a stored number or enter a number to dial for dial backup.

Stay on Leased

The DSU IQ remains on the leased line and does not enter dial backup mode.


Chapter 12. Activating Dialing Functions

Dial Options During Dial Backup

Hang Up

Terminates the dial backup connection and attempts to reestablish communication on the DDS line.

Stay On Line

This DSU IQ remains in dial backup mode and returns to the

Statistics menu.


Appendix A. Pinouts

Appendix A

Pinouts

The following tables give the pin assignments for the DSU IQ and ESP card connectors. For more information on these connectors, see the chapter Installation.

Pin

1

2

3-6

7

8

Name

R1

T1

T

-

R

Table A-A

Pin Assignments for Telco Connector

Description

Transmit Data from DSU to Network-Ring 1

Transmit Data from DSU to Network-Tip 1

Not Used

Receive Data from Network to DSU-Tip

Receive Data from Network to DSU-Ring


Appendix A. Pinouts

17

18

20

21

8

9

10

15

6

7

4

5

Pin

1

2

3

22

24

25

DD

-

CD

-

CF

-

-

DB

EIA

AA

BA

BB

CA

CB

C C

AB

CE

DA

-

Table A-B

Pin Assignments for EIA-232 Connector

Description

Protective Ground (PG)

Transmit Data (SD)

Receive Data (RD)

Request to Send (RS)

Clear to Send (CS)

Data Set Ready (SR)

Signal Ground (SG)

Received Line Signal Detector (CD)

+12 Test Point

-12 Test Point

Transmit Clock (TC)

Receive Clock (RC)

Local Loopback (LL)

Data Terminal Ready (TR)

Remote Loopback (RL)

Ring Indicator (RI)

External Tx Clock (ETC)

Test Indicator (TI)


61200.212L1-1

X

P

T

V

N

R

J

L

F

H

D

E

Pin

A

B

C

S

Y

AA

U

W

NN

Appendix A. Pinouts

-

-

-

104

104

115

115

103

CCITT

101

102

105

106

107

109

-

103

114

114

113

113

-

Table A-C

Pin Assignments for V.35 Connector

Description

Protective Ground (PG)

Signal Ground (SG)

Request to Send (RTS)

Clear to Send (CTS)

Data Set Ready

Received Line Signal Detector (CD)

Data Terminal Ready (DTR)

Ring Indicator (RI)

Local Loopback (LL)

Remote Loopback (RL)

Received Data (RD-A)

Received Data (RD-B)

Receiver Signal Element Timing (SCR-A)

Receiver Signal Element Timing (SCR-B)

Transmitted Data (SD-A)

Transmitted Data (SD-B)

Transmitter Signal Element Timing (SCT-A)

Transmitter Signal Element Timing (SCT-B)

External TX Signal Element (SCX-A)

External TX Signal Element (SCX-B)

Test Indicator (TI)

Table A-D

Pin Assignments for Control Connector

Direction RJ Pin#

1

2

3

6

7

4

5

8

Function

GND

RTS

TD

DSR

RD

CTS*

DTR

DCD

*Used for hardware flow control.

O

I

O

O

O

I

I


Appendix A. Pinouts

Pin

1

2

3

4, 5

6

7, 8

Table A-E

Pin Assignments for 10baseT Connector (Ethernet Card)

Name

TD+

TD-

RD+

N/A

RD-

N/A

Description

The positive signal for the TD differential pair. This signal contains the serial output data stream transmitted onto the network.

The negative signal for the TD differential pair (pins 1 and 2).

The positive signal for the RD differential pair. This signal contains the serial input data stream received from the network.

not used

The negative signal for the RD differential pair (pins 3 and 6).

not used

Table A-F

ESP DBU Card Pin Assignments

Pin Name Description

4-wire Switched 56

1 R1 Transmit Data from DSU to Network-Ring 1

2

3-6

7

8

T1

-

T

R

Transmit Data from DSU to Network-Tip 1

Not Used

Receive Data from Network to DSU-Tip

Receive Data from Network to DSU-Ring

V.34 and 1B+D ISDN

1-3 Not Used

4

5

6 - 8

T

R

-

Network-Tip

Network-Ring

Not Used


Appendix A. Pinouts

Table A-G

DTE/DCE Connector Pin Assignments (DCE Card Option)

DB25 Pin# V.35 Pin# Function DTEx Port

Direction

DCE Port

Direction

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

21

22

23

24

25

17

18

19

20

A

AA

Y

V

T

E

B

C

D

F

R

S

P

H

W

U

X

FGND

TD(EIA-232)

RD(EIA-232)

RTS

CTS

DSR

GND

DCD

NEG

POS

TC-B(V.35)

TC-A(V.35)

RC-A(V.35)

RD-B(V.35)

TC(EIA-232)

RD-A(V.35)

RC

TD-B(V.35)

TD-A(V.35)

DTR

ETC-B(V.35)

ETC-A(V.35)

ETC(EIA-232)

RC-B(V.35)

O

O

O

O

O

O

O

I

O

I

O

O

I

I

O

I

I

I

I

I

I

I

I

I

I

O

O

I

O

O

O

O

O

I

O

I

I

I


Appendix A. Pinouts


Appendix B. Specifications Summary

Appendix B

Specifications Summary

SPECIFICATIONS AND FEATURES

This appendix provides the standard specifications and features of the DSU IQ.

Operating Modes

56/64k frame relay

Line Interfaces

RJ-48S, 4-wire, full duplex

DBU Interfaces

4-Wire SW56 DBU Card

RJ-48S

V.34 and ISDN DBU Cards

RJ-11

DCE Card

EIA-232: DB-25 female DTE emulation

V.35: V.35 Winchester male or female via optional adapter cable

(part numbers: male 1200193L1; female 1200194L1)

Receiver Sensitivity

-45 dB



Clocking

Time derived from frame relay network or from the unit

DTE Rates Supported

56k or 64k synchronous (achieve rates up to 512 kbps with the optional ESP external DCE card and an external DSU/CSU)

Dial Backup Rates Supported

4-Wire SW56 DBU Card

56 kbps

V.34 DBU Card

2.4 to 33.6 kbps

ISDN DBU Card

56 or 64 kbps

DTE Interfaces

EIA-232: DB-25 female

V.35 Winchester: M block female

Diagnostics

Network

Responds to CSU and DSU loopbacks from the telco

User

PVC and DTE loopbacks; test pattern with sequence checks

SNMP

SNMP and TELNET

Integrated SLIP/PPP (async) port

Optional 10baseT interface

MIB II, RFC 1315 compliant

ADTRAN enterprise MIB for frame monitoring and DSU control



Agency Approvals

FCC Part 15, Class A

FCC Part 68

Industry Canada CS03

UL and CUL

Relevant Protocol Standards

Frame Relay

ANSI T1.606

ANSI T1.607

ANSI T1.617

ANSI T1.618

ITU Q.922

ITU Q.933

Frame Relay Forum FRF 1.1

SLIP

RFC 1055

SNMP MIB

RFC 1315

RFC 1213

Physical

Operating temperature: 0 to 50 o C (32 to 122 o F)

Storage: -20 to 70 o C (-4 to 158 o F)

Relative humidity: Up to 95%, non-condensing

Dimensions: 2.5"H, 7.75"W, 10.375"L

Weight: 4.5 lbs

Power: 115 VAC, 60 Hz, 7 W




Acronyms and Abbreviations


ACK ........................................................ acknowledgment

ALM ........................................................ alarm

ANSI ....................................................... American National Standards Institute

AR ........................................................... access rate

ARP ......................................................... address resolution protocol async ....................................................... asynchronous

BECN ...................................................... backward explicit congestion notification

BOP ......................................................... bit oriented protocol

CCITT ..................................................... Consultive Committee for International Telephony and Telegraphy

CD ........................................................... carrier detect

CIR .......................................................... committed information rate

CO ........................................................... central office

CPE ......................................................... customer premise equipment

CR, C/R .................................................. command response

CRC ......................................................... cyclic redundancy check

CS ............................................................ clear to send

CSU ......................................................... channel service unit

CTS .......................................................... clear to send dB ............................................................ decibel

DBU ........................................................ dial backup

DCD ........................................................ data carrier detect

DCE ......................................................... data communications equipment

DDS ......................................................... digital data service

DE ............................................................ discard eligible

DLCI ....................................................... data link connection identifier

DSAP ...................................................... destination service access point

DSR ......................................................... data set ready



DSU ......................................................... data service unit

DTE ......................................................... data terminal equipment

DTR ......................................................... data terminal ready

EA ............................................................ extended address

EBCDIC .................................................. extended binary coded decimal interexchange code

ESP .......................................................... embedded SNMP

FECN ...................................................... forward explicit congestion notification

FEP .......................................................... front end processor

FIFO ........................................................ first in first out

FR ............................................................ frame relay

FRAD ...................................................... frame relay access device

FRF .......................................................... frame relay forum

FSU .......................................................... frame relay service unit

GUI .......................................................... graphical user interface

HDLC ..................................................... high-speed data link control

IA ............................................................. inactive

IP ............................................................. internet protocol

ISDN ....................................................... integrated services digital network

ITU .......................................................... International Telecommunications Union

KA ........................................................... keep alive kbps ......................................................... kilobits per second

LAN ........................................................ local area network

LED ......................................................... light emitting diode

LI ............................................................. link integrity

LLC ......................................................... logical link control

LMI .......................................................... local management interface

LRC ......................................................... lateral redundancy check

MIB .......................................................... management information base ms ............................................................ millisecond

OCU ........................................................ office channel unit

OOS ......................................................... out of service

PPP .......................................................... point-to-point protocol

PU ............................................................ physical unit

PVC ......................................................... permanent virtual circuit

RD ........................................................... receive data

RDL ......................................................... remote digital loopback

RFC ......................................................... request for comments

RFECN .................................................... remote forward explicit congestion notification

RIP ........................................................... routing information protocol



RMA ........................................................ return material authorization

RNR ........................................................ receiver not ready

RR ............................................................ receiver ready

RS ............................................................ request to send; also recommended standard

RTS .......................................................... request to send

Rx ............................................................ receive

SAP ......................................................... service access point

SDLC ....................................................... synchronous data link control

SLIP ......................................................... serial line internet protocol

SNA ......................................................... systems network architecture

SNMP ..................................................... simple network management protocol

SR ............................................................ data set ready

SVC ......................................................... switched virtual circuit

SW56 ....................................................... switched 56 sync ......................................................... synchronous

TD ............................................................ transmit data

TR ............................................................ data terminal ready

Tx ............................................................. transmit

UA ........................................................... unavailable

UNI ......................................................... user-to-network interface

VRC ......................................................... vertical redundancy check

WAN ....................................................... wide area network




Glossary

Glossary

American National Standards Institute (ANSI)

Devices and proposes recommendations for international communications standards.

asynchronous

A method of data transmission which allows characters to be sent at irregular intervals by preceding each character with a start bit, followed by a stop bit.

backward explicit congestion notification (BECN)

A bit set by a frame relay network to notify an interface device (DTE) that congestion avoidance procedures should be initiated by the sending device.

bandwidth

The bandwidth determines the rate at which information can be sent through a channel (the greater the bandwidth, the more information that can be sent in a given amount of time).

bridge

A device that supports LAN-to-LAN communications. Bridges may be equipped to provide frame relay support to the LAN devices they serve. A frame relay capable bridge encapsulates LAN frames in frame relay frames and feeds them to a frame relay switch for transmission across the network. A frame relay capable bridge also receives frame relay frames from the network, strips the frame relay frame off each LAN frame, and passes the LAN frame on to the end device.

Bridges are generally used to connect LAN segments to other LAN segments or to a WAN. They route traffic on the Level 2 LAN protocol (e.g. the Media Access

Control address), which occupies the lower sub-layer of the LAN OSI data link layer. See also router.


Glossary

CD carrier detect. A signal generated by a modem or DSU/CSU. CD indicates the presence of a carrier signal on a communications link.

channel service unit

CSU. A device used to connect a digital phone line (T1 or Switched 56 line) coming in from the phone company to either a multiplexer, channel bank, or directly to another device producing a digital signal; for example, a digital PBX, a

PC, or data communications device. A CSU performs certain line-conditioning and equalization functions, and responds to loopback commands sent from the central office. A CSU regenerates digital signals. It monitors them for problems, and provides a way of testing the digital circuit.

CIR committed information rate. Less than or equal to the access rate, the CIR is used by the service provider for rate enforcement when the network is congested.

When rates exceed the CIR, frames may be discarded.

clocking

An oscillator-generated signal that provides a timing reference for a transmission link. A clock provides signals used in a transmission system to control the timing of certain functions. The clock has two functions, (1) to generate periodic signals for synchronization and (2) to provide a time base.

CPE customer premise equipment. All telecommunications terminal equipment located on the customer premises, including telephone sets, private branch exchanges (PBXs), data terminals, and customer-owned coin-operated telephones.

C/R bit

In the Q.921 protocols, a bit that identifies a data-link-layer frame as either a command or a response.

CRC cyclic redundancy check. A computational means to ensure the accuracy of frames transmitted between devices in a frame relay network. The mathematical function is computed, before the frame is transmitted, at the originating device.

Its numerical value is computed based on the content of the frame. This value is compared with a recomputed value of the function at the destination device.


Glossary

CS

See CTS.

CSU

See channel service unit.

CTS clear to send. A signal on the DTE interface indicating that the DCE is clear to send data.

data service unit

DSU. A device designed to transmit and receive digital data on digital transmission facilities.

dB decibel. A unit of measure of signal strength, usually the relation between a transmitted signal and a standard signal source.

data communications equipment (DCE)

Device that provides all the functions required for connection to telephone company lines and for converting signals between telephone lines and DTE.

Also see DTE.

DDS digital data service. A private line digital service, for transmitting data end-toend at speeds of 2.4, 4.8, 9.6, and 56 kbps and in some cases 19.2, 38.4, or 64 kbps.

The systems can use central hub offices for obtaining test access, bridging legs of multipoint circuits, and cross connecting equipment. DDS is offered on an inter-

LATA basis by AT&T and on an intra-LATA basis by the Bell operating companies.

data link connection identifier (DLCI)

A unique number assigned to a PVC end point in a frame relay network.

Identifies a particular PVC endpoint within a user's access channel in a frame relay network and has local significance only to that channel.

discard eligibility (DE)

A user-set bit indicating that a frame may be discarded in preference to other frames if congestion occurs, to maintain the committed quality of service within the network. Frames with the DE bit set are considered Be excess data.


Glossary

DSU

See data service unit.

DSU loopback

A telco initiated test which loops the DSU back to the telco and is used to test the

DDS circuit as well as the DSU/CSU.

DTE data terminal equipment. The end-user terminal or computer that plugs into the termination point (DCE) of a communications circuit. The main difference between the DCE and the DTE is that pins two and three are reversed.

end device

The ultimate source or destination of data flowing through a frame relay network sometimes referred to as DTE. As a source device, it sends data to an interface device for encapsulation in a frame relay frame. As a destination device, it receives de-encapsulated data (i.e., the frame relay frame is stripped off, leaving only the user's data) from the interface device.

encapsulation

A process by which an interface device places an end device's protocol-specific frames inside a frame rely frame. The network accepts only frames formatted specifically for frame relay; therefore interface devices acting as interfaces to a frame relay network must perform encapsulation. See also interface device and

frame-relay-capable interface device.

file server

In the context of frame relay network supporting LAN-to-LAN communications, a device connecting a series of workstations within a given LAN. The device performs error recover and flow control functions as well as end-to-end acknowledgment of data during data transfer, thereby significantly reducing overhead within the frame relay network.

forward explicit congestion notification (FECN)

A bit set by a frame relay network to notify an interface device (DTE) that congestion avoidance procedures should be initiated by the receiving device. See also BECN.


Glossary frame check sequence (FCS)

The standard 16-bit cyclic redundancy check used for HDLC and frame relay frames. The FCS detects bit errors occurring in the bits of the frame between the opening flag and the FCS, and is only effective in detecting errors in frames no larger than 4096 octets. See also cyclic redundancy check (CRC).

frame-relay-capable interface device

A communications device that performs encapsulation. Frame-relay-capable routers and bridges are examples of interface devices used to interface the customer's equipment to frame relay network. See also interface device and

encapsulation.

frame relay frame

A variable-length unit of data, in frame-relay format that is transmitted through a frame relay network as pure data. Contrast with packet.

frame relay network

A telecommunications network based on frame relay technology. Data is multiplexed. Contrast with packet switching network.

gateway

A device which enables information to be exchanged between two dissimilar systems or networks.

high level data link control (HDLC)

A generic link-level communications protocol developed by the International

Organization for Standardization (ISO). HDLC manages synchronous codetransparent, serial information transfer over a link connection. See also

synchronous data link control (SDLC).

host computer

The primary or controlling computer in a multiple computer operation.

in-band

Signaling (dialing, diagnostics, management, configuration, etc.) over the same channel used for data.

ingress

Frame relay frames leaving from an access device in a direction toward the frame relay network.


Glossary interface device

Provides the interface between the end device(s) and a frame relay network by encapsulating the user's native protocol in frame relay frames and sending the frames across the frame relay backbone. See also encapsulation and frame-relaycapable interface device.

IP internet protocol. A protocol which provides for transmitting blocks of data between hosts identified by fixed-length addresses.

ISDN integrated services digital network. A network architecture that enables end-toend digital connections. The network supports diverse services through integrated access arrangements and defines a limited set of standard, multipurpose interfaces for equipment vendors, network providers, and customers. Interworking with a public switched telephone network is retained.

local area network (LAN)

A privately owned network that offers high-speed communications channels to connect information processing equipment in a limited geographic area.

MIB management information base. A database of network management information used by SNMP.

out-of-band

Signaling that is separated from the channel carrying information (voice, data, video, etc.). Typically the separation is accomplished by a filter. The signaling includes dialing and other supervisory signals.

packet

A message containing both control information and data. The control information is used for routing the packet through a network to its final destination. Contrast with frame relay frame. packet-switching network

A telecommunications network based on packet-switching technology, wherein a transmission channel is occupied only for the duration of the transmission of the packet. Contrast with frame relay network.


Glossary parameter

A numerical code that controls an aspect of terminal and/or network operation.

Parameters control such aspects as page size, data transmission speed, and timing options.

permanent virtual circuit (PVC)

A frame relay logical link, whose endpoints and class of service are defined by network management. Analogous to an X.25 permanent virtual circuit, a PVC consists of the originating frame relay network element address, originating data link control identifier, terminating frame relay network element address, and termination data link control identifier. Originating refers to the access interface form which the PVC is initiated. Terminating refers to the access interface at which the PVC stops. Many data network customers require a PVC between two points. Data terminating equipment with a need form continuous communion use PVCs. See also data link connection identifier (DLCI).

ping

An internet protocol standard that provides loopback on demand for any device in an IP network. One device "pings" another by sending a loopback request to the device's IP address.

point-to-point

Type of communications link that connects a single device to another single device, such as a remote terminal to a host computer.

remote configuration

A feature designed into ADTRAN DSU/CSU products that allow remote DSU/

CSU to be configured from a local DSU/CSU or VT 100 compatible terminal.

router

A device that supports LAN-to-LAN communications. Routers may be equipped to provide frame relay support to the LAN devices they serve. A frame-relaycapable router encapsulates LAN frames in a frame relay frames and feeds those frame relay frames to a frame relay switch for transmission across the network.

A frame-relay-capable router also receives frame relay frames from the network, strips the frame relay frame off each frame to produce the original LAN frame, and passes the LAN frame on to the end device. Routers connect multiple LAN segments to each other or to a WAN. Routers route traffic on the Level 3 LAN protocol (e.g., the internet protocol address). See also bridge.


Glossary service

The provision of telecommunications to customers by a common carrier, administration, or private operating agency, using voice, data, and/or video technologies.

SNA systems network architecture. The IBM protocol group which governs mainframe communication.

SNMP simple network management protocol. A control and reporting scheme widely used to manage devices from different vendors. SNMP operates on top of the

Internet protocol.

SR data set ready. A signal on the EIA-232 interface that indicates if the communications is connected and ready to start handshaking control signals so communications can begin.

statistical multiplexing

Interleaving the data input of two or more devices on a single channel or access line for transmission through a frame relay network. Interleaving of data is accomplished using the DLCI.

switched network

The network of dial-up telephone lines using circuit switching to provide communications services to network users.

synchronous

Communications in which the timing is achieved by sharing a single clock. Each end of the transmission synchronizes itself with the use of clocks and information sent along with the transmitted data.

synchronous data link control (SDLC)

A link-level communications protocol used in an international business machines

(IBM) systems Network Architecture (SNA) network that manages synchronous, code-transparent, serial information transfer over a link connection. SDLC is a subset of the HDLC protocol developed by ISO.


Glossary

TELNET

The standard TCP/IP remote login protocol specified in RFC-854.

VT 100

A non-intelligent terminal or terminal emulation mode used for asynchronous communications. Used to configure the DSU IQ.


Glossary


Index

Symbols

10baseT connector 1, 10, 27 pin assignments 112

4-wire SW56 2, 115

DBU card 6

A

abort frames 96, 97

DBU port 98 aborts 77, 82, 86 activating menu items 15, 20 add 57, 68

ADD key 16, 57, 68 address to ping testing 102 addressing 2 agency approvals 117 agent 4 alarm

19 alarm conditions 19

ALM 19 always on signaling responses 49

ANSI 3

ANSI T1.617-D 51 applications 25 dial backup 35 management 25 arrow keys 15


B

async PPP 2, 10, 13, 27 async status 82

AT&T 5ESS 64 auto DBU 61 average frame delay 92 average loop response time 106 average Rx frame 91 average Rx throughput 79, 84, 89 average Rx utilization 79, 84, 89 average Tx frame 91 average Tx throughput 80, 85, 89 average Tx utilization 81, 85, 89

AVG RESP TIME ping test 103

PVC loopback 106 avg response time ping test 103

Index

B-CH BIT RATE 64

B-channel bit rate 64 baud rate 26

BECN 90 beep enable 61 begin remote session 21 bit rate 46

BPV 98

BPV/frame error 83

133

Index

C

cancel key 15 cards (options) 12 installation 12 carrier detect 19

CD 19, 95

CD option 47 change password 65

CIR 1, 56 clear to send 19 clock setting 68 clock source network port 53 clocking 116

CNTL PORT MODE 66

CONFIG 20, 23 configuration 20, 23

DTE port 45 local 39 menus 40 front panel 43 terminal 41 network port 51 remote 39 system 65–69 congestion 47 congestion control 3 control port 2, 10, 11, 13, 21, 27 configuration 39 mode 26, 28, 66 pin assignments 111

CR 90

CRC errors 77, 82, 86, 96, 97

DBU port 98

CRC16 3

CS 19, 95

CTS 75

CTS option 47 current statistics 74 customer service 7, 9


D

daily lockout 61 data link connection identifier 3 date setting 68

DBU state 84 statistics 98

DBU bit rate 64

DBU card 112

DBU card connector pin assignments 112

DBU card options 63

DBU criteria 62

DBU DLCI 36, 56 setting to 0 36, 56

DBU interface 11, 115

DBU options 59, 61

DBU password 61

DBU port statistics 84

DBU status 98 network port stats 97

DBU timers 62

DCD 75

DCE 64

DCE card 6, 64 pin assignments 113

DCE options 64

DDS alarm conditions 19 operation 3 service rates 3 state change 82

UA time 83

DE 90 dedicated PVC management 29, 34 delay measurement 2, 56 delete 57, 68

DELETE key 16, 57, 68 diagnostics 116 dial 23

61200.212L1-1

Index dial backup 2, 107, 112, 115 application 35 configuration 39, 59 installing cards 12 operation 5 options 37 rates 116 sample application 36, 37 statistics 71 dial functions activating 107–108 dial options menu tree 107–108 when DBU active 108 when DBU idle 107 discard eligibility 90 discard frame 77, 82, 86

DLCI 3, 21, 25, 30, 49, 54, 56, 104

1 and 2 54

1 and 2 MODE 55 address 48

DBU 56 statistics 74, 87, 88 specific DLCI 88 summary of all 93

DLCI list 99

DMS100 64

DSR 75

DSR option 47

DSU state 79

DSU loop state 97

DTE 46 connectors 10 interface 2, 11 port 20 configuration 39, 45–49 menu tree 46 statistics 75, 95 terminal configuration menu 45 rates 116 statistics 71

DTR 75

61200.212L1-1

E

EA violation 78, 83

EIA-232 2, 10, 11, 13, 46, 116

EIA-232 connector pin assignments 110 encapsulation error 78, 83, 87 enter key 15 error threshold defining 48 errored frames 96, 97

DBU port 98

ESC 74

ESP card options 5

ESP DCE card 6

ESP ethernet card 2, 4, 10, 11, 27, 112 installation of 12 ethernet 1, 2, 5, 10, 27, 29 ethernet card 112

F

fail timer 62 features 1

FECN 90

FECN/BECN flow control 47 flags 3 flow control 46

FOLLOW NET 49 follow network signaling responses 49 follow RTS

CTS option 47 forced on

CD option 48

CTS option 47

DSR option 47

FR OPT network port 53

FR OPTS 48

FRAD 48, 49 frame relay 48, 117 alarm conditions 19 general description 2 monitoring 1


Index options 48 network port 53 protocol options 45 frames in 97

DBU port 98 frames out 97

DBU port 98 frames Rx 105 frames Tx 105 freeze statistics 74 front panel 4, 15 configuration menu tree 40, 43 entering letters 69 operation 20 full status 82 full status polls 77

G

gateway IP address 28, 66

GW IP ADDRESS 66

H

I

hang up 108 hardware flow control 47 header 3 history interval 73 history interval count 55 history interval size 68 hot keys 74

HST INT COUNT 55

HST INT SIZE 68 in-band 1 in-band management 29 inactive DLCI 78, 83 included in shipment 9 installation 9–13

INTERFACE 46 interface type 46, 64 interfaces

136

DTE 116 interval remaining 76, 78, 84 interval view storage capacity 68 invalid DLCI 78, 83

IP address 28, 30, 33, 49, 65, 102

IQ View 2

ISDN 2, 115

ISDN DBU card 6, 63

ISDN options 63

ITU Q.933-A 51

K

keypad 16

L

LAN 4, 27

LAN interface 11

LCD window 15

LDN configuring 64 leads on 75

LED description 19 length error 78, 83, 87 line interfaces 115 link integrity 54, 77, 82 link violations 77

LMI 51 local configuration 39 local login 21 local PVC management 29, 30 local PVC Rx bytes 76 local PVC Rx frames 76 local PVC Tx bytes 77 local PVC Tx frames 76 lockout end 61 lockout start 61 login menu 21, 22 logout 24 loop rate network port 52 lost frames 90, 105


Index lost packets 56

M

main menu 22, 23 main menu branches configuration 23 dial 23 logout 23 test 23 view statistics 23 management applications 25 management DLCI 30, 33, 49 configuration 49 management DLCI 1 and 2 54 mode 55 management DLCI mode 33 management options 25 management PVC option 49 max PVC count 55

MAX RESP TIME ping test 103

PVC loopback 105 max response time ping test 103 maximum frame delay 92 maximum loop response time 105 maximum Rx frame 91 maximum Rx throughput 79, 84, 88 maximum Rx utilization 79, 84, 89 maximum Tx frame 91 maximum Tx throughput 80, 85, 89 maximum Tx utilization 80, 85, 89 menu items selecting 16 menu navigation 20

MGMT DLCI 49

MGMT PVC OPT 49

MIB 1, 2, 4, 10, 27, 116, 117

MIN RESP TIME ping test 103

PVC loopback 105 min response time ping test 103 minimum frame delay 91

61200.212L1-1 DSU IQ User Manual minimum loop response time 105 minimum Rx frame 91 minimum Tx frame 91 modem options 63

N

N391 network port 54

N392 48 network port 54

N393 48 network port 54

National 64

NEC 64 network statistics 71 network interface 12 network manager 4, 27 network port 54 configuration 39, 51 menu tree 51 terminal menu 52 frame relay options menu terminal 53 statistics 78, 80, 81, 97 next 57, 67

NEXT key 16, 57, 67 no test active

PVC loopback 105 normal

CD option 48

DSR option 47 numeric keypad 16

O

octet align 78, 82, 86, 96, 97

DBU port 98 opening menu 23 operating modes 115 speed 46 operation 15–24 out-of-band management 27

137

Index

P

password 21 default 21 password enable 61 permanent virtual circuits 3 phone numbers storing 64

PHYS LYR OPT 46 network port 52 physical layer

DTE port options 45 network port options 52 physical layer options 46 physical specifications 117 pin assignments

10baseT connector 112 control connector 111

DBU cards 112

DCE option card 113

EIA-232 connector 110 telco connector 109

V.35 connector 111 ping testing 102 ping address testing 102 ping responses 103

PINGS RX 103 pings transmitted 102

PINGS TX 102 pinouts 109 polling 51 port UA time 81, 98 power cord 10, 11 power switch 10, 11 power up 10

PPP 1, 10, 13, 27, 66

PREV key 16, 57, 67 previous 57, 67 product overview 1–2 protocol standards 117

PVC 1, 3, 29, 32, 51 active/inactive/undefined 105

PVC CONFIG 55


PVC configuration table 35, 37

PVC DELAY 56

PVC inactive 89

PVC loopback 103

PVC options 16, 55

PVC state change 92

R

RD 19

RD COM NAME 66 read community name 28, 31, 33, 66 rear panel 10 receipt inspection 9 receive data 19 receiver sensitivity 115 redial counter 63 remote configuration 39 remote login 21 remote lost frames 91, 105 request to send 19 restore timer 62 return material authorization (RMA) 7

RFC 1213 4

RFC 1315 4

RFC 1490 25, 29, 32 router 49

RS 19, 95

RTS 47, 75

Rx BECN 90

Rx burst seconds 91

Rx bytes 79, 84, 88

Rx CR 90

Rx DE 90

Rx FECN 90

Rx frames 79, 84, 88

Rx full status 77, 82

Rx LI only 77, 82

S

SEQ # 56 sequence number checking 56 shared PVC management 29, 32 shift key 16, 20

61200.212L1-1

Index

SIG RESPONSES 49

SIGNAL network port 53 signal down time 77, 81, 96 signal errors 77, 81, 96, 97 signal state 95, 96, 97 signal state change 77, 82, 96, 97 signal timeouts 77, 81, 96, 97 signal type network port 53 signaling format 51 signaling responses 49 signaling state 76, 78

SLIP 1, 2, 10, 13, 27, 66, 117

SNMP

1, 2, 4, 10, 13, 27, 28, 29, 49, 66, 116, 117 in-band 25 out-of-band 25 specifications 115

SPID configuring 64

SR 95 start ping 102 start test

PVC loopback 104 statistics 1

DBU port 84, 98

DLCI 87

DTE port 75 network port 78 system 94 view by day 76 view by interval 75 viewing 71 front panel 95 terminal 71 statistics menus changing view option 74 scrolling left and right 74 turning pages 74

STATS 23 stay on leased 107 stay on line 108 stop test

PVC loopback 104 subnet mask 28, 49, 65

SVC 3

SW56 DBU 6 switched virtual circuit 3 system configuration 39, 65 statistics 71, 94, 99 system time/date 68

T

T391 81 network port 54

T392 48

TD 19 telco 11 telco connector 12 pin assignments 109 telco jack 10

TELNET 2, 5, 27, 29, 49, 116 terminal configuration 39 network port 52 configuration menu 40 connection/operation 21 terminal interface 40 test 19, 23 test active

PVC loopback 105 test length

PVC loopback 104 test menu 101 test status 106 testing 116 throughput 88 time setting 68 time in DBU 86, 89

DBU port 98

TR 95 transmission errors 77 transmit data 19

TRAP DLCI 67

TRAP IP 67 trap manager DLCI 29, 31, 33, 67


Index trap manager IP address 29, 31, 34, 67 trap manager port 29, 31, 34, 67 trap mgr options 67

TRAP PORT 67

TST 19

Tx BECN 90

Tx burst seconds 91

Tx bytes 80, 84, 89

Tx CR 90

Tx DE 90

Tx FECN 90

Tx frames 80, 84, 89

Tx full status 82

Tx LI only 82

U

UNI 48, 51, 54 unrouteable 78, 83, 87 utilization 88

V

V.34 DBU card 2, 6, 63, 115

V.35 2, 10, 11, 13, 46, 116 pin assignments 111 view by day 72, 73, 74, 76 view by interval 72, 74, 75 view DLCI list 106 view statistics 23 view test

PVC loopback 105 virtual circuit 49, 51 address 3 permanent 3 switched 3 virtual connections 2

VT 100 2, 4, 13, 25 configuration 39 configuration menu tree 41 connection/operation 21 management 26

W

wait to redial 63


WAN 2, 29 weekend lockout 62 wide area network 2 with no LMI

DBU criteria 62 with no RX

DBU criteria 62 with no SC

DBU criteria 62 with OOS

DBU criteria 62

WR COM NAME 67 write community name 28, 31, 33, 67

61200.212L1-1

Product Support Information

Pre-Sales Inquiries and Applications Support

Please contact your local distributor, ADTRAN Applications

Engineering, or ADTRAN Sales:

Applications Engineering (800) 615-1176

Sales (800) 827-0807

Post-Sale Support

Please contact your local distributor first. If your local distributor cannot help, please contact ADTRAN Technical Support and have the unit serial number available.

Technical Support (888) 4ADTRAN

Repair and Return

If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Customer and Product Service (CAPS) department to issue an Return

Material Authorization (RMA) number. For information regarding equipment currently in house or possible fees associated with repair, contact CAPS directly at the following number:

CAPS Department (256) 963-8722

Identify the RMA number clearly on the package, and return to the following address:

ADTRAN, Inc.

CAPS Department

901 Explorer Boulevard

Huntsville, Alabama 35806

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