[c-nsp] QoS on Multilink T1's.

Adam Atkinson ghira at mistral.co.uk
Sat Mar 24 16:50:52 EDT 2012


Joseph Mays wrote:
>> I would also check the policy-map statistics on the multilink 
>> interface to see if it is actually doing
>> anything and go from there. It *could* be a bug.
> 
> I took each t1 individually out of the multilink bundle, so the bundle 
> contained only the first t1, then only the second t1. In both cases, the 
> problem disappeared and QoS began working normally as soon as there was 
> only one t1 in the bundle. This is without changing the multilink 
> interface config or policy itself. As soon as I put both t1's back in 
> the problem returns immediately.
> 
> Right now I'm planning to upgrade the router to 12.4ish Monday.

Have you tried putting a parent shaper policy in and putting your 
intended policy in class-default in that? I have this recollection
that "pretend" interfaces like dialer, multilink and tunnel need
to have this done to them. Though this could be badly out of
date if it was ever true at all.


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