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Example: DLCI Class of Service on a Channelized IQ Interface Configuration


This example applies class of service at the logical interface level on a clear channel T3 interface derived from a channelized DS3 IQ interface. (For more information on configuring a channelized DS3 IQ interface, see Example: Channelized DS3 IQ Interface Configuration.)

Configure a scheduler map, complete with the desired transmit rates, buffer sizes, and service classes. Once the scheduler map is ready, enable logical interface-level class of service with the per-unit-scheduler statement at the [edit interfaces interface-name] hierarchy level. Also, configure a DLCI for each logical interface with the dlci dlci-number statement at the [edit interfaces interface-name unit unit-number] hierarchy level. Finally, configure the logical interfaces for class of service with the scheduler-map and shaping-rate statements at the [edit class-of-service interfaces interface-name unit unit-number] hierarchy level. These statements specify which scheduler map to associate with each logical interface and how much bandwidth to reserve for the DLCI queues.

Verifying Your Work

To verify correct operation of class-of-service schedulers on a channelized IQ interface, use the following commands:

  • show class-of-service forwarding-table

  • show class-of-service interface

user@router> show class-of-service interface t3-3/1/0