Nortel Networks OPTera Metro 3500 - Manual (Page 120)

2-82 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
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(See
Note )
This alarm is raised against the WAN port
when the administrative state of the WAN
port on a 2xGigE/FC-P2P circuit pack is
up but the operating state of the port is
down. Critical, service affecting (C, SA)
Rx Signal Degrade This alarm is raised against the WAN port
when the following occurs:
• For GFP-F, this alarm is raised when at
least 1 percent of the received frames
are errored per second, for 3
consecutive seconds.
• For GFP-T, this alarm is raised when at
least 1 percent of the received
superblocks are errored per second, for
3 consecutive seconds.
Minor, service affecting (mn,SA)
Rx Excessive Error ratio This alarm is raised against the WAN port
when one of the following conditions
occurs:
• For GFP-F, this alarm is raised when at
least 20 percent of the received frames
are errored per second, for 3
consecutive seconds.
• For GFP-T, this alarm is raised when at
least 20 percent of the received
superblocks are errored per second, for
3 consecutive seconds.
Major, service affecting (Mj,SA)
Table 2-12 (continued)
Egress WAN port and service alarms
Alarm Description Severity