Cabletron Systems SMARTSWITCH ROUTER 9032578-05 - Manual (Page 88)

Chapter 6: Packet-over-SONET Configuration Guide
62 SmartSwitch Router User Reference Manual
• Signal failure BER threshold of 10
-3
(1 out of 1,000 bits transmitted is in error). Signal
failure is associated with a “hard” failure. Signal fail is determined when any of the
following conditions are detected: loss of signal (LOS), loss of frame (LOF), line alarm
indication bridge and selector signal (AIS-L), or the BER threshold exceeds the
configured rate.
To specify different BER thresholds, enter the following commands in Enable mode:
Monitoring PoS Ports
To display PoS port configuration information, enter one of the following commands in
Enable mode:
The following table describes additional monitoring commands for IP interfaces for PoS
links, designed to be used in Enable mode:
Specify signal degrade BER
threshold. sonet set sd-ber
Specify signal failure BER
threshold. sonet set sf-ber
Show framing status, line type, and circuit
ID of the optical link. sonet show medium
Show working or protecting line, direction,
and switch status. sonet show aps
Show received path trace. sonet show pathtrace
Show loopback status. sonet show loopback
Display bridge NCP statistics for
specified PoS port. ppp show stats port bridge-
ncp
Display IP NCP statistics for
specified PoS port. ppp show stats port ip-ncp
Display link-status statistics for
specified PoS port. ppp show stats port link-
status
Display summary information for
specified PoS port. ppp show stats port summary