RE: Traffic Precedence

From: Chris Lewis \(chrlewis\) (chrlewis@cisco.com)
Date: Thu Jun 23 2005 - 19:44:58 GMT-3


So taking the original question, traffic on vlan 10 should have priority
flash.

Depending on the topology, it may be possible to do the following:

Switch(config)#policy-map flash
Switch(config-pmap)#class class-default
Switch(config-pmap-c)#set ip prec 3

If the topology allows you to apply a service-policy to one or more
interfaces to catch all the vlan 10 traffic, I think this could work.
Generally if the question asks for something to be done on a vlan, I try
to use vlan maps, but I don't think setting precedence is an option
there.

Chris

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
gladston@br.ibm.com
Sent: Thursday, June 23, 2005 3:45 PM
To: Ed Lui
Cc: ccielab@groupstudy.com
Subject: Re: Traffic Precedence

Thanks for the reply Ed,

Did you see any way to set ip precedence when traffic goes OUT an
interface on 3550?

I can not see a way to do that, besides police (set is not allowed on
Egress); and police is not good because we can mark down only excess
traffic. And the system requires at the minimum 8000 for conformed, so
some traffic would not be marked.

PBR and CAR does not work to mark traffic on 3550.

Any other idea?

Cordially,
------------------------------------------------------------------
 Gladston

Ed Lui <edwlui@gmail.com>
23/06/2005 16:58
Please respond to
Ed Lui <edwlui@gmail.com>

To
Alaerte Gladston Vidali/Brazil/IBM@IBMBR
cc
ccielab@groupstudy.com
Subject
Re: Traffic Precedence

Gladston,
 
I would set the precedence on both incoming and outgoing traffic.
 
Ed Lui

 
On 6/23/05, gladston@br.ibm.com <gladston@br.ibm.com> wrote:Hi,

This prepositions...

How would you interpret this?
"traffic on Vlan 10 should have precedence flash"

It is traffic going "to" vlan 10 or traffic "coming from" vlan 10.
For example:

vlan10------SW

SW should configure precedence for traffic transmitted to vlan 10 or it
should configure precedence for traffic received on vlan10?



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