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Checking the Configuration
On router A, which contains the working interface, use the following configuration:
Router# configure terminal
Router(config)# interface loopback 1
Router(config-if)# ip address 10.7.7.7 255.255.255.0
Router(config)# interface pos 2/0/0
Router(config-if)# aps group 1
Router(config-if)# aps working 1
Router(config-if)# pos ais-shut
Router(config-if)# end
Router#
On router B, which contains the protect interface, use the following configuration:
Router# configure terminal
Router(config)# interface loopback 2
Router(config-if)# ip address 10.7.7.6 255.255.255.0
Router(config)# interface pos 3/0/0
Router(config-if)# aps group 1
Router(config-if)# aps protect 1 10.7.7.7
Router(config-if)# pos ais-shut
Router(config-if)# end
Router#
The loopback interface is used as the interconnect. The aps group command is used even when a single
Note
protect group is configured.
To verify the configuration or to determine if a switch over has occurred, use the show aps command.
For more information on SONET APS, see the following documents:
•
•
Checking the Configuration
After configuring the new interface, use show commands to display the status of the new interface or all
interfaces, and use the ping command and loopback commands to check connectivity. This section
includes the following subsections:
•
•
•
For complete command descriptions and examples, refer to the publications listed in the
Documentation" section on page
PA-POS-2OC3 Two-Port Packet-over-SONET Port Adapter Installation and Configuration
4-8
Automatic Protection Switching of Packet-over-SONET Circuits at the following URL:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1824/products_feature_guide09186a0080087
ad9.html
Configuring Redundancy for POS/APS at the following URL:
http://www.cisco.com/en/US/tech/tk482/tk607/technologies_tech_note09186a0080094c54.shtml
Using show Commands to Verify the New Interface Status, page 4-9
Using the ping Command to Verify Network Connectivity, page 4-29
Using loopback Commands, page 4-29
iv.
Chapter 4
Configuring the PA-POS-2OC3
"Related
OL-3028-06
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