Example 1: Configuring Interfaces in SONET Mode

The following example illustrates how to configure T1 lines on channelized SONET interfaces, as shown in Figure 11.

Figure 11: Configuring Fractional T1 in SONET Mode

1. Select an OC-12 SONET controller.

   host1(config)#controller sonet 4/0

2. Configure two STS-1 paths.

   host1(config-controller)#path 2 oc1 1/2

   host1(config-controller)#path 10 oc1 4/1

3. Configure two VT1.5 tributaries on SONET path channel 2.

   host1(config-controller)#path 2 ds1 1/2/2 vt15

   host1(config-controller)#path 2 ds1 1/7/4 vt15

4. Configure two fractional T1 lines on VT 1/2/2 in path 2.

   host1(config-controller)#path 2 ds1 1/2/2 channel-group 1 timeslots 1-10

   host1(config-controller)#path 2 ds1 1/2/2 channel-group 2 timeslots 11, 21-26

5. Configure a fractional T1 line on VT 1/7/4 in path 2.

   host1(config-controller)#path 2 ds1 1/7/4 channel-group 1 timeslots 2-7

6. Configure an unchannelized T3 on SONET path channel 10.

   host1(config-controller)#path 10 ds3 1 unchannelized

7. Configure a channelized T3 on SONET path channel 12.

   host1(config-controller)#path 12 ds3 1 channelized

8. Configure a T1 channel on the channelized T3 on SONET path channel 12.

   host1(config-controller)#path 12 ds3 1 t1 4

9. Configure two fractional T1 lines on the T3 in path channel 12.

   host1(config-controller)#path 12 ds3 1 t1 4/1 timeslots 3-8

   host1(config-controller)#path 12 ds3 1 t1 4/2 timeslots 20

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