the second option is what I have seen in production. This is because the
customer can not override the allocation of QoS (that is what he pays for
gold/silver/blah).
On Mon, Nov 30, 2009 at 2:46 PM, William McCall <william.mccall_at_gmail.com>wrote:
> I did some googling and I think I get this, but I want a quick
> affirmation so I don't screw up.
>
> If you reckon that you have a P router attached to a PE and you are
> assuring link QoS characteristics based on EXP, the EXP will be marked
> on ingress at the top-most label.
>
> At the P router attached to the destination PE, by default, an
> implicit null will be in the LFIB for egress interface towards the PE.
> As a result, to ensure that the EXP is given a proper shape rate, you
> have two options:
>
> 1) Configure the PE to give an explicit null so the egress shaper on
> the P router can utilize the EXP from the ingress frame
> 2) Utilize QoS groups so the EXP is matched and assigned on ingress to the
> EXP
>
> Thoughts, suggestions, clarifications. I need that 2nd CCIE!
>
> --
> William McCall, CCIE #25044
>
>
> Blogs and organic groups at http://www.ccie.net
>
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Received on Tue Dec 01 2009 - 00:23:01 ART
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