Atec Agilent-J3763A - Manual (Page 18)

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Because the Advisor is a multitasking instrument, you can perform any of the
active stimulus/response tests while the analyzer simultaneously monitors their
effect on the network.
The Advisor WAN provides a series of pre-written and pre-configured test
routines; you can easily write others. Test scripts can be customized and saved
as a new test to build a library of powerful test sequences tailored to your
individual applications.
LMI Emulation
Emulation is understood in the Frame Relay Industry as the testing capability of
a test device to replace either side of the network and provide the functions of
the replaced side. This implies the implementation of appropriate state
machines, which allow the tester to interact according to protocol standards.
The Advisor provides the following emulation capabilities according to the
Frame Relay Forum Implementation Agreements FRF.1.1 and FRF.2.1 and ITU-T
Q.933 Annex A:
•UNI-User (CPE) Emulation
•UNI-Network (Switch) Emulation
•NNI Emulation (bi-directional polling)
The UNI-User (CPE) emulation implies unidirectional polling from the User or
Customer Premise Equipment (CPE) to the Network (Switch).
The UNI-Network (Switch) emulation implies unidirectional replies from the
Network (Switch) to polling from the User or Customer Premises Equipment
(CPE).
The NNI emulation implies bi-directional polling from Network to Network.
(NNI).
The simulation application allows also transmitting ICMP PING Requests to the
network and also sending a capture buffer to the network.
Frame Relay UNI-User (CPE) Emulation
The UNI-User emulation follows the Frame Relay Forum Implementation
Agreement FRF.1.1 and ITU-T Q.933 Annex A. The UNI-User emulation
supports the following Standards in the following order:
•ITU-T Q.933 Annex A
•ANSI T1.617 Annex D
•Original Frame Relay Consortium (Original LMI)
The UNI-User emulation supports the following setups:
•FULL Status Polling Cycles (N391) in the range from 1 to 10 polling cycles, with
a N391 default value of 6 polling cycles.
•Status Enquiry messages (T391) counters, in the range from 1 to 60 seconds,
with a T391 default value of 10 seconds.