[c-nsp] Rate-limiting traffic on 3500

[Daniel Hooper]

Classifying Traffic on a Per-Port Per-VLAN Basis by Using Class Maps 

You use the class-map global configuration command to name and to isolate a specific traffic flow (or class) from all other traffic. To further classify the traffic flow, the class map defines the matching criteria to use. 

To define packet classification on a per-port per-VLAN basis, follow these guidelines: 

* <https://mail.team.emerge.net.au/i/templates/blank.gif> You must use the match-all keyword with the class-map global configuration command. 

* <https://mail.team.emerge.net.au/i/templates/blank.gif> Per-port per-VLAN classification is a per-port feature and does not work on redundant links. It is supported only on an ingress port configured as a trunk or as a static-access port. 

* <https://mail.team.emerge.net.au/i/templates/blank.gif> The class map must have two match commands in this order: one match vlan vlan-list class-map configuration command and one match class-map class-map-name class-map configuration command. The class map specified in the match class-map class-map-name command must be predefined and cannot contain the match vlan vlan-list and the match class-map class-map-name commands. 


http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_see/configuration/guide/swqos.html#wp1145280
 
________________________________

From: cisco-nsp-bounces at puck.nether.net on behalf of Tassos Chatzithomaoglou
Sent: Tue 1/22/2008 5:16 PM
To: Michael Malitsky
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Rate-limiting traffic on 3500



I don't think you can do "Per-Port Per-VLAN QoS" on 3550 or "VLAN-Based QoS" on 3560 on the egress
direction. Just on ingress.

--
Tassos


Michael Malitsky wrote on 22/1/2008 2:25 ??:
> Hello,
>
> I am trying to figure out a way to set up some traffic limiters.
> Specific situation is: I have several VLANs in a 802.1q trunk on one
> port.  I need to control the _outbound_ traffic rate with a different
> CIR for each VLAN.  Traffic-shaping would be nice, but I don't think
> it's supported.  I'll settle for policing or even CAR, but so far
> haven't been able to figure it out.  I need this done on several
> switches, all are either 3550 or 3560 models. 
> Any suggestions appreciated.
>
> If this can't be done, what's the minimum level of hardware necessary?
>
>
> Thanks,
> Michael Malitsky
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