Specifications

CHAPTER

6-1

Cisco XR 12000 Series Router SIP and SPA Software Configuration Guide, Release 3.2

Release 3.2, OL-6396-01, Rev.A1 January 9, 2006

Configuring POS SPAs on Cisco IOS XR Software

This chapter provides information about configuring POS SPAs on the Cisco XR 12000 Series Router

running Cisco IOS XR software. It includes the following sections:

• Configuration Tasks, page 6-1

• Verifying the Interface Configuration, page 6-20

• Configuration Examples, page 6-20

For information about managing your system images and configuration files, refer to the Cisco IOS XR

Getting Started Guide and the Cisco IOS XR Commands Master List publications.

For more information about the commands used in this chapter, see first Chapter 10, “Command

Reference,” which documents new and modified commands and the Cisco IOS XR Interface and

Hardware Component Command Reference. For more information about accessing these publications,

see the “Related Documentation” section in the “Preface”.

Configuration Tasks

On Cisco IOS XR software, all physical POS ports are configured using a SONET controller. Therefore,

the first step in a POS interface configuration is to configure the SONET controller.

All SONET-related configurations of a SONET-based physical port are grouped under the command-line

interface (CLI) SONET controller configuration command mode prompt (config-sonet). All SONET

path-related configuration commands are grouped under the CLI SONET path command mode

(config-sonet-path).

When the SONET controller configuration is complete, the POS interfaces can be configured in interface

configuration mode.

The following tasks are available for configuring POS interfaces:

• Specifying the Interface Address, page 6-2

• Configuring a SONET Controller, page 6-3 (Required)

• Configuring SONET APS, page 6-6 (Optional)

• Configuring Fast Reroute and SONET APS, page 6-10 (Optional)

• Configuring a POS Interface, page 6-12 (Required)

• Configuring Cisco HDLC on a POS Interface, page 6-15 (Optional)

• Configuring PPP on a POS Interface, page 6-17 (Optional)