Cisco ASR 1000

Contents
ix
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Verifying the Interface Is Up 11-4
Verifying the Line Protocol Is Up 11-5
Verifying the CRC Counter 11-5
Verifying the Carrier Signal 11-5
Understanding SPA Automatic Recovery 11-6
When Automatic Recovery Occurs 11-6
If Automatic Recovery Fails 11-6
Using the Cisco IOS Event Tracer to Troubleshoot Problems 11-6
Preparing for Online Insertion and Removal of a SPA 11-7
PART 4 Packet over SONET Shared Port Adapters
CHAPTER 12 Overview of the POS SPAs 12-1
Release History 12-2
POS Technology Overview 12-2
Supported Features 12-3
SONET/SDH Compliance Features 12-3
SONET/SDH Error, Alarm, and Performance Monitoring Features 12-3
SONET/SDH Synchronization Features 12-4
WAN Protocol Features 12-4
Network Management Features 12-4
Restrictions 12-5
Supported MIBs 12-5
SPA Architecture 12-6
4-Port OC-3c/STM-1 POS SPA Architecture 12-6
Path of a Packet in the Ingress Direction 12-6
Path of a Packet in the Egress Direction 12-6
2-Port OC-48c/STM-16 POS SPA Architecture 12-7
Path of a Packet in the Ingress Direction 12-7
Path of a Packet in the Egress Direction 12-8
1-Port OC-192c/STM-64 POS XFP SPA Architecture 12-8
Path of a Packet in the Ingress Direction 12-8
Path of a Packet in the Egress Direction 12-9
Displaying the SPA Hardware Type 12-9
Example of the show interfaces Command 12-9
Example of the show controllers Command 12-10