R2511-HP MSR Router Series Interface Configuration Guide(V5)

53
Step Command Remarks
13. Set alarm thresholds.
ft1 alarm-threshold { ais { level-1 |
level-2 } | lfa { level-1 | level-2 |
level-3 | level-4 } | los
{ pulse-detection | pulse-recovery }
value }
Optional.
By default:
• For LOS alarm, the threshold of
pulse-detection is 176 and the
threshold of pulse-recovery is
22. If the number of the pulses
detected during the total length
of 176 pulse detection intervals
is smaller than 22, the
pulse-recovery threshold, a
LOS alarm occurs.
• Both AIS alarm threshold and
LFA alarm threshold are level-1.
14. Set the type of line idle code.
ft1 idlecode { 7e | ff }
Optional.
The default is 0x7E.
15. Set the type of interframe
filling tag.
ft1 itf type { 7e | ff }
Optional.
The default is 0x7E.
16. Set the number of interframe
filling tags.
ft1 itf number number
Optional.
The default is 4.
17. Enable loopback and set the
loopback mode.
ft1 loopback { local | remote |
payload }
Optional.
Loopback is disabled by default.
18. Send remote control loopback
code.
ft1 sendloopcode
{ fdl-ansi-llb-down | fdl-ansi-llb-up
| fdl-ansi-plb-down |
fdl-ansi-plb-up | fdl-att-plb-down
| fdl-att-plb-up | inband-llb-down
| inband-llb-up }
Optional.
No remote control code is sent by
default.
19. Set the intended bandwidth
for the T1-F interface.
bandwidth bandwidth-value Optional.
20. Set the physical state change
suppression interval for the
T1-F interface.
link-delay delay-time
Optional.
By default, state change
suppression is disabled.
21. Restore the default settings for
the T1-F interface.
default Optional.
22. Shut down the T1-F interface.
shutdown
Optional.
A T1-F interface is up by default.
23. Start a loop test.
looptest [ -c count | -p { pattern |
special { ascending | descending |
random } } | -s packetsize | -t
timeout ] * interface type number
Optional.
This command is available only on
synchronous serial interfaces
created for E1, T1, E1-F, or T1-F.
Starting/terminating a BERT test on a T1-F interface
BERT is operating as follows: