Cisco ASR 900 Series Configuration Guide

SONET Protection Switching 28
1+1 APS 28
Benefits of APS 29
APS 1+1 for SONET Layer 1 traffic 29
Scenario for Bidirectional APS 1+1 30
Scenario for Unidirectional APS 1+1 31
UPSR Path Protection 31
Configuring UPSR 32
Configuring UPSR Work and Protection Path Configuration 32
Verification of UPSR Configuration 33
Alarms at SONET Layers 33
SONET Alarm Surveillance 33
Section Alarms 33
Line Alarms 34
Path Alarms 34
VT Alarms 34
T1 Alarms 35
T3 Alarms 35
Alarm Indicators 35
How to Configure SONET 35
Prerequisites for Configuring SONET 36
Configuring MediaType Controller 36
Configuring SONET Ports 36
Managing and Monitoring SONET Line 36
Configuring Line and Section Overhead 36
Configuring Line and Section Threshold 37
Configuring Line Loopback 37
Configuring AIS Shut 37
Configuring Shut 37
Configuring Alarm Reporting 38
Configuring Clock 38
Configuring STS-1 Modes 38
Configuring DS1/T1 CT3 mode of STS-1 39
Configuring STS-Nc - Contiguous Concatenation 39
Configuring CEM Group for Sonet Mode VT1.5-T1 in CESoPSN 40
1-Port OC-192 or 8-Port Low Rate CEM Interface Module Configuration Guide, Cisco IOS XE Everest 16.7.x (Cisco
ASR 900 Series)
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Contents

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English