Applying Forwarding Classes to Interfaces
You can configure fixed classification on a logical interface by specifying a forwarding class to be applied to all packets received by the logical interface, regardless of the packet contents.
On the T4000 router, BA classification and fixed classification are mutually exclusive. That is, only one of the classifications can be configured.
To apply a forwarding class configuration to the input logical interface, include the forwarding-class statement at the [edit class-of-service interfaces interface-name unit logical-unit-number] hierarchy level:
You can include interface wildcards for interface-name and logical-unit-number.
In the following example, all packets coming into the router from the ge-3/0/0.0 interface are assigned to the assured-forwarding forwarding class: