Selecting A Loopback Code To Send To A Remote Device; Starting Or Stopping Loopback Mode On A Remote Device - Nortel Versalar 15000 Troubleshooting Manual

Managing and Troubleshooting the Versalar Switch Router 15000

Selecting a Loopback Code to Send to a Remote Device

To select a far-end alarm and control channel code (FEAC) for the remote end of
the test connection, go to the t3-test prompt (for example,
the following command:
send-feac-loop-code < action >
action
•
no-action
•
lineloop
loop.
•
deactivatell
•
payloadloop
loopback. The signal loops through the framing device before the received
signal is looped back for retransmission.
•
deactivatepl
loopback.
The following example shows how to start and stop payload loopback over the
FT3 interface on slot 2, connector 1, T1 channel 4:
t3-test/3/1#
t3-test/3/1#
t3-test/3/1#

Starting or Stopping Loopback Mode on a Remote Device

To start or stop an FT3 loopback test, go to the t3-test prompt (for example,
t3-test/2/1
send-feac-loop-{up
up sends a loop-up signal to start a loopback test.
down
no-action
timeslot
termination signal.
6-12
is one of the following:
(the default setting) does not send code to the remote end.
bypasses the framing device and passes code directly through the
disables generation of line loopback code.
sends a loop-up signal to the remote end to initiate payload
sends a loop-down code to the remote end to stop payload
send-feac-loop-code payloadloop
send-feac-loop-code deactivatepl
) and enter the following command:
|
down}-code {no-action
sends a loop-down signal to stop a loopback test.
(the deafult setting) indicates no loopback signal.
is a timeslot from 1 to 24 on which to send the loopback initialization or
t3-test/2/1
|
< timeslot >}
302768-C Rev 00
) and enter