Sonet Alarm Surveillance; Section Alarms; Line Alarms; Path Alarms - Cisco ASR 900 Series Configuration Manual

Configuring SONET

SONET Alarm Surveillance

SONET alarm surveillance uses two terms:
• State—Condition that is reported or detected. A SONET chassis enters a state when the chassis detects
• Indication—Prompted by a change of state. This indicates the presence of a condition. This document
The interface of active alarm or defect is maintained in a down/down state. The process used to troubleshoot
down/down SONET interfaces is similar to that for digital interfaces, such as T1 and T3.

Section Alarms

The following section alarms are supported:
• LOS — Loss of Signal
• LOF — Loss of Frame
• SEF — Severely Error Frame

Line Alarms

The following line alarms are supported:
• AIS-L — Line AIS
• REI-L — Line Remote Error Indication
• RDI-L — Line Remote Defect Indication
• B2 — Line BIP Error (SF/SD)
• TCA for B2

Path Alarms

The following path alarms are supported:
• AIS-P — STS Path AIS
• LOP-P — STS Path Loss of Pointer
• B3 (SF/SD) — STS Path BIP Error
• UNEQ-P — STS Path unequipped
• REI-P — STS Path Remote Error
• RDI-P — STS Path Remote Defect Indication
• PLM-P — STS path Payload Label Mismatch
the occurrence of an event. A SONET chassis exits that state when the chassis no longer detects the
event.
discusses the Alarm Indication Signal (AIS), and Remote Defect Indicator (RDI).
1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS
SONET Alarm Surveillance
XE Fuji 16.7.x (Cisco ASR 900 Series)
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