Cisco ASR 1000 Configuration Guide

CHAPTER
13-1
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
13
Configuring the POS SPAs
This chapter provides information about configuring the Packet over SONET (POS) shared port adapters
(SPAs) on the Cisco ASR 1000 Series Aggregation Services Routers. This chapter includes the following
sections:
• Configuration Tasks, page 13-1
• Verifying the Interface Configuration, page 13-11
• Configuration Examples, page 13-12
For information about managing your system images and configuration files, refer to the Cisco IOS XE
Configuration Fundamentals Configuration Guide, Release 2 and Cisco IOS Configuration
Fundamentals Command Reference publications that correspond to your Cisco IOS XE software release.
Configuration Tasks
This section describes how to configure POS SPAs and includes information about verifying the
configuration.
It includes the following topics:
• Specifying the Interface Address on a SPA, page 13-1
• Modifying the Interface MTU Size, page 13-2
• Modifying the POS Framing, page 13-3
• Modifying the Keepalive Interval, page 13-5
• Modifying the CRC Size, page 13-6
• Modifying the Clock Source, page 13-6
• Modifying SONET Payload Scrambling, page 13-8
• Configuring the Encapsulation Type, page 13-8
• Configuring POS Alarm Trigger Delays, page 13-9
Specifying the Interface Address on a SPA
SPA interface ports begin numbering with “0” from left to right. Single-port SPAs use only the port
number 0. To configure or monitor SPA interfaces, you need to specify the physical location of the SIP,
SPA, and interface in the CLI. The interface address format is slot/subslot/port, where:

Cisco ASR 1000 Specifications

General

Brand	Cisco
Model	ASR 1000
Category	Network Router
Language	English