Table of Contents
Advertisement
Chapter 14
Configuring Automatic Protection Switching
Feature History for SR-APS
Cisco IOS Release Description
12.0(21)ST
12.2(13)BZ
12.3(7)XI
12.2(28)SB
Configuring SR-APS
To configure SR-APS, enter the following commands beginning in global configuration mode:
Command
Step 1
Router(config)# redundancy
Step 2
Router(config-r)# associate slot odd-slot
even-slot
Step 3
Router(config-r)# exit
Note
After you configure redundancy, the software treats the pair as though it occupies a single slot. The
interface slot number is always the odd number of the redundant pair. For example, for the redundant
pair occupying slots 5 and 6, the show interface pos 5/0/0 command refers to the active card (even if
the active card occupies slot 6).
Disabling SR-APS
To disable SR-APS redundant operation, use the no form of the associate slot command. For example:
Router(config-r)# no associate slot 3 4
If the redundant configuration is disabled, the software modifies the running configuration in the
following ways:
1.
2.
Table 14-1
OL-2226-23
This feature was introduced on the Cisco 10000 series router. PRE1
This feature was integrated into Cisco IOS
Release 12.2(13)BZ
This feature was integrated into Cisco IOS Release 12.3(7)XI. PRE2
This feature was integrated into Cisco IOS
Release 12.2(28)SB.
The software removes all SR-APS configuration information.
The software creates two configurations, one for the primary card and one for the protect card.
shows examples of configuration files with redundancy enabled and disabled.
Single-router Automatic Protection Switching
Purpose
Enters redundancy configuration mode, which allows you
to associate two line cards as a redundant pair.
Associates two line cards as a redundant pair.
To allow SR-APS to operate, you must specify a line card
installed in an odd slot number as the first member of a
redundant pair; the second line card must be installed in the
even-numbered slot to its right.
Exits redundancy configuration mode and returns to global
configuration mode.
Cisco 10000 Series Router Software Configuration Guide
Required PRE
PRE1
PRE2
14-29
Advertisement
Table of Contents
Troubleshooting
