Chapter 4 Configuring the
Customizing the Configuration
Step 3 To disable SONET payload scrambling, use the no pos
Router(config)# interface pos 3/0
Configuring APS
The following example shows the configuration of automatic protection switching (APS) on router A and router B. (See Figure
Figure 4-1 Basic APS Configuration
POS 2/0/0
Working interface
Router A
E 0/0
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Router B |
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SONET network equipment
10325
Add Drop Multiplexer (ADM)
On router A, which contains the working interface, use the following configuration:
Router# configure terminal
Router(config)# interface loopback 1
Router(config)# interface pos 2/0/0
Router#
On router B, which contains the protect interface, use the following configuration:
Router# configure terminal
Router(config)# interface loopback 2
Router(config)# interface pos 3/0/0
Router#
Note The loopback interface is used as the interconnect. The aps group command is used even when a single protect group is configured.
To verify the configuration or to determine if a switchover has occurred, use the show aps command.
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