Comments on: QOS: Applying CBWFQ to a sub-interface

By: Marcel Lammerse

Marcel Lammerse — Tue, 09 Mar 2010 02:21:31 +0000

Great article Arden! Here’s an excerpt from a Cisco technote that explains why this is necessary.

“Cisco IOS logical interfaces do not inherently support a state of congestion and do not support the direct application of a service policy that applies a queueing method. Instead, you first need to apply shaping to the subinterface using either generic traffic shaping (GTS) or class-based shaping.”

http://www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a0080114326.shtml

By: Arden Packeer, CCIE #20716

Arden Packeer, CCIE #20716 — Fri, 24 Apr 2009 02:15:21 +0000

Shaping and policing are two fundamentally different things. You could police to restrict bandwidth but you don’t get queues!

By: Joshua

Joshua — Thu, 23 Apr 2009 21:57:56 +0000

Is there a work around for the incoming policy-map? Being that you can’t shape on the inbound could you use policing to reach the same result?

By: Lee

Lee — Fri, 17 Apr 2009 03:02:23 +0000

Thanks heaps… I was 99% there just didn’t get the shape average percent 100!

By: blueghost

blueghost — Mon, 09 Mar 2009 22:28:15 +0000

Great workaround. Solved my Issue and it works very well.

By: mrburkem

mrburkem — Fri, 09 Jan 2009 22:24:02 +0000

Thank you for this post. It just solved my issue!

By: VB

VB — Tue, 21 Oct 2008 04:26:22 +0000

Thank you

By: the_rain

the_rain — Wed, 28 May 2008 02:24:50 +0000

Thx a alot.,