From: boby2kusa (boby2kusa@hotmail.com)
Date: Fri May 06 2005 - 02:48:37 GMT-3
answe ro question 2 Cisco switch, in particular 3550, do not support 'match
vlan' to be able to trust on a per VLAN on a given port. Instead, you could
use per-port, per-VLAN QoS policy.
Answer to question 1, use the policy map with a class map that matches any
ip traffic and apply the policy map to the interface vlan 10, is there is an
SVI for vlan 10. Not sure what you meant by MLS QoS maybe you meant module
QoS which is the same as policy map. Why do you need to map the CoS to
DSCP? Unless you know exactly what CoS value is coming in from vlan 10 then
you can use the CoS-to-DSCP mapping but sounds a lot messier. Also, if
there is vlan 10 then those traffic belongs to a particular subnet, correct?
Then you can use that subnet to classify the traffic to beuse in your class
map for the policy map. Clear as mud?
----- Original Message -----
From: <sumit.kumar@comcast.net>
To: <ccielab@groupstudy.com>
Sent: Thursday, May 05, 2005 9:36 PM
Subject: DSCP MArking on 3550
> Simple question:
>
> Q - Mark all the packets from vlan 10 to dscp 46.
>
> Confusion - where to apply policy-map physical ports on switch or
interface Vlan. 10 or use MLS QOS and Map COS to DSCP??
>
> 2 Anyone used - " match vlan <vlanid> " option in class-map ?
>
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