From: William Chen (kwchen@netvigator.com)
Date: Thu Apr 22 2004 - 13:26:23 GMT-3
Hi
See below:
Best Regards,
William Chen
----- Original Message -----
From: "ccie2be" <ccie2be@nyc.rr.com>
To: "Group Study" <ccielab@groupstudy.com>
Sent: Thursday, April 22, 2004 11:56 PM
Subject: QoS on 3550
> Hi guys,
>
> I'm trying to understand something which has me confused.
>
> Recall these facts:
>
> At layer 2, only ISL or 802.1q trunks have fields to carry layer 2 QoS
info.
>
> Regular ethernet frames don't and can't carry any QoS info.
>
> Given the above,
>
> Q1) Can cos be set on frames coming into or going out of regular access
port
> on a 3550?
Not, there is not way to set COS going out of regular access port.
>
> Q2) If so, how does this work?
>
> Q3) Can someone confirm that's there's no problem or Gotcha's on setting
> layer 3 QoS on frames coming into or leaving a regular access port?
You can easily test it. Try the "ip accounting precedence" at the
receiving router.
>
> Thanks in advanced, Tim
>
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