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CBWFQ : Not supported on subinterfaces

If you are used to being able to apply QoS policies to interfaces, it is somewhat surprising when you go to apply one to a subinterface and are greated with an error message:

CBWFQ : Not supported on subinterfaces

Never fear, there is a documented work around. You basically have to trick the router into believing CBWFQ is not being applied to the subinterface. Cisco's fancy term for this is a hierarchical policy.

Here's a link with specific examples: Applying QoS Features to Ethernet Subinterfaces

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Comments

Very cool

Good to know, Thanks!



Dr. Radut | blog