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14-5
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 14 Configuring Automatic Protection Switching
Multirouter Automatic Protection Switching
Example 14-1 shows the configuration of MR-APS on ATM interfaces. In the example, Router A is
configured with the working interface, and Router B is configured with the protect interface. If the
working interface on Router A becomes unavailable, the connection automatically switches over to the
protect interface on Router B.
Example 14-1 Configuring MR-APS
Router A (working interface)
configure terminal
interface atm 1/0/0
ip address 10.7.7.7 255.255.255.0
!
redundancy
associate slot 2 mr-aps
!
interface atm 2/0/0
aps group 1
aps working 1
Router B (protect interface)
interface atm 1/0/0
ip address 10.7.7.6 255.255.255.0
!
redundancy
associate slot 3 mr-aps
!
interface atm 3/0/0
aps group 1
aps protect 1 10.7.7.7
Configuring MR-APS with Static Routes
To configure MR-APS with static routes, perform the following procedures:
• Configuring MR-APS with Static Routes on Unchannelized Line Cards, page 14-5
• Configuring MR-APS with Static Routes on Channelized Line Cards, page 14-7
Configuring MR-APS with Static Routes on Unchannelized Line Cards
To optionally configure MR-APS with static routes on unchannelized line cards, enter the following
commands beginning in global configuration mode:
Command Purpose
Step 1
Router(config)# redundancy
Enters redundancy configuration mode, which allows you
to associate two line cards as a redundant pair.
Step 2
Router(config-r)# associate slot slot-one
mr-aps
Logically associates slots for APS processor redundancy.
To allow MR-APS to operate, you must associate a slot on
the working interface of one router and with a
corresponding protect interface on a second router.
Step 3
Router(config-r)# exit
Exits redundancy configuration mode and returns to global
configuration mode.