Xgig® 16 G Fibre Channel Generator

Xgig® 16 G Fibre
Channel Generator
Generates Fibre Channel Traffic to 16 G
Increased demand for storage network bandwidth is driving
the Fibre Channel (FC) industry to quickly advance toward
doubling the currently supported speed. Starting from 1 G,
FC technology has already doubled its supported speeds
with similar framework and data structure. Functional
verification and protocol compliance tests can be correlated
among various data speeds up to 8 G. However, for
designers jumping between 8 G FC and 16 G FC poses
a greater technological difference than expected and,
therefore, require fundamental protocol-based tests at the
16 G speed.
Conducting detailed all-layer tests requires a 16 G FC generator. The new Xgig 16 G FC
Generator function on the 16 G FC multifunctional blade for the Xgig 5000 platform offers
similar client management as other Xgig functions, with the exception of the analyzer
which has a separate client interface. The 16 G FC Generator connects to users’ systems and
Key Benefits
yy Enables thorough verification of Fibre
Channel functionality and testing for
protocol compliance
yy Complete API library facilitates test
yy Flexible configurations to generate fully
customized protocols
Key Features
yy Generates FC and SCSI FCP protocol traffic
yy Operates at speeds of 4, 8, and 16 G
yy Emulates initiator and target behaviors
yy Supports N_port, F_port, or E_port emulation
yy Controlled through C/C++ API-based scripts
yy Supports up to 1024 event queues
yy Supports fully customized frames, ordered
sets, primitives, and fill word generation
yy Supports automatic or manual control flow
can arbitrarily create FC protocol traffic at speed of 4, 8, or 16 G FC, to emulate FC devices.
In addition, the 16 G FC Generator can be used to replay field issues in the lab to verify
bug fixes in the SQA lab before they are deployed. For optimal usability, users control the
generator through an application-programming interface (API). The Xgig 16 G FC Generator
can help companies accelerate turn-up, regression and manufacturing testing, and field
support, among other applications.
Data Sheet
Operation Mode—Compiled Testing Mode
The Xgig 16 G FC Generator function, available on Xgig 5000 16 G FC
multifunctional blade, can be controlled using a compiled C++-based
API, empowering users to construct any FC traffic, exchange sequences,
and response logic. Users can create extensive test scenarios by
controlling Generator TX for transmitting frames, setting the order and
even inter-frame gap (IFG), and retrieving the traffic from Generator RX.
They can establish the exchange sequence by defining the correlation
yy Supports both automatic and manual BBC management — A setup
trigger mechanism (3 levels, logic, and counters) to switch generatormanaged BBC to a fully user-controlled mode.
yy Supports DWORDs event transmission — In addition to defining and
configuring frames/ordered sets/primitives sequences to transmit,
another generator option lets users directly define DWORD sequences.
This mode lets users configure frames and ordered sets and primitives
as well as configure fill words.
yy Supports event queue — The generator supports up to 1024 event
between TX and RX using “C Programming” logic.
In addition to the full customization option, the function provides
automatic FC link initialization and buffer-to-buffer credit (BBC)
management. Leveraging these built-in processes, users can focus on
constructing compliant FC traffic without worrying about rudimentary
link activations, link maintenance, and traffic flow management.
queues on transmission and allows continuous appending of frames/
ordered sets/primitives to the end of the queue.
yy Event logging — A log file is automatically crated to report the status
of each API action. During a failure, the log file records the error types,
such as parameter errors, API errors, or internal errors.
The generator builds upon the proven Xgig platform with its flexible
Unique Capabilities
chassis-and-blade hardware architecture that supports multiple
Programming empowers the 16 G FC Generator with:
Fibre Channel multifunction blade, the generator can create and
protocols. With this architecture and the Viavi Solutions 16 G 4-port
yy FC port emulation — This function can emulate N_Port, F_Port, and
yy Enables FC initiator and target emulation by constructing FC traffic — The
generator port can connect directly to either initiator or target devices
under test (DUTs) to conduct stateful SCSI exchanges and to manage
extended link services. The C Programming script logic enables the
generator to conditionally respond to inbound frames or data patterns and
is the basis for creating transaction/exchange-level responses.
yy Custom frames, ordered sets, and primitive construction — This function
emulate bidirectional FC traffic. Using the multifunction capabilities of
the Xgig, users can configure the generator functions to meet other
supported Xgig Fibre Channel functions, such as analyzer, jammer,
or load tester, by simply toggling software switches. Xgig also gives
users flexibility through either port synchronization or support
for many users. The Xgig platform’s cascade function can cascade
multiple Xgig chassis together to form a “sync group” that provide
anywhere from 1 to 32 synchronized generator ports. In noncascaded
scenarios, Xgig can support a maximum of 32 simultaneous users.
lets users configure either compliant or noncompliant data structures for
proprietary tests.
Lock Xgig port
with generator
Event logging
Automatic link
initialization to
link active
User interrupt for
manual control
Tx event queue by
user (frame & OS)
Follow "C Programming"
logic for Fibre Channel
Rx frame & OS
Auto credit
Figure 1. The operation architecture
2 Xgig 16 G Fibre Channel Generator
Manual credit
Scripting Services
Xgig 16 G FC Generator is fully controlled and managed using API
scripts. To facilitate the use of this function and fully automate the
tests, Viavi offers a custom-scripting service through its Viavi Medusa
Labs testing lab and training center that also offers a wide range
of products and services. Specializing in providing industry-leading
testing services, the lab experts will meet all of your test and scripting
1.Contracting the scripting service includes these steps:
2.Interview customers to understand the test environment and test case
3.Propose a scope of work
4.Sign off on the service contract upon agreement of proposal
5.Deliver the script code in .exe format
6.The customer tests, verifies, and accepts the delivery
Ordering Information
Part Numbers
1-port 16 G FC Generator Function Key
Contact Us
+1 844 GO VIAVI
(+1 844 468 4284)
To reach the Viavi office nearest you,
visit viavisolutions.com/contacts.
© 2015 Viavi Solutions, Inc.
Product specifications and descriptions in this
document are subject to change without notice.
30173352 900 1112
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