[c-nsp] Catalyst QoS Based on VLAN ID

[Skeeve Stevens]

I found a feature called 'Per Vlan Per Port Policing' which is on the latest
two IOS's available for the 3560 and 3750 +G versions.

In the 3550 it is simple with the 'match vlan x' option under the
class-map... but even though the feature navigator says the 3560/3750 can do
it, that match vlan is not there, so it must be done another way... which
I've yet to figure out yet, but would love it if someone could help me.

...Skeeve

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Curtis Doty
Sent: Friday, 6 July 2007 12:44 PM
To: Cisco NSP
Subject: Re: [c-nsp] Catalyst QoS Based on VLAN ID

11:40pm Kurt Bales said:

> I have "inherited" a network design that involves a series of Switches in
> effectivly this design:
>
>                         [7200-BGP]
>                            ||
> [Cust_A] == Trunk == [My 3560_A] == Trunk== [My 3500XL_B] == Trunk ==
> [Cust_B]
>                            ||                     ||
>                           Trunk                  Trunk
>                            ||                     ||
>                          [Cust_C]               [Cust_D]
>
> This design was to create a layer 2 network between a group of mutually
> assocaited Customer peers, so that Cust A could have a VLAN trunked from
his
> trunk all the way through to Cust_B (after I set up the appropriate VLAN
> trunk allows on my equipment of course). As well as each having an VLAN
for
> L3 interconnect to my 7200 for BGP peering between all peers.
>
> I am in a position now where I am required to rate limit certain VLAN's
down
> to set limits. Say VLAN 601 (Cust_A <-> Cust_C) is only to be 5mb, but
VLAN
> 602 (CustA_ <-> Cust_B) to be 3mb. Obviously, I cannot apply QoS on the
> physical port that Cust_A connects to, because each VLAN requires a
> different speed. There are no SVI's on either switch for those vlans, so I
> cannot apply the QoS there either.
>
> Is there any way to do rate limiting or policing based on VLAN id on the
> equipment I have? I understand that the ME3750 can do "Hierarchical
Queuing
> Framework", where I can do "Logical QoS" but I currently a) have none of
> this kit, and b) most likely cannot afford to use it either.
>
> Does anybody see any options to achieve this outcome?

This sorta sounds like what Skeeve was just asking about. The CCO bible 
says you have to make each switchport use vlan-based QoS. Then put your 
service-policy on the SVI.

If you aren't running an L3 address on that SVI, then I have no idea what 
happens. Would love to learn too...before I have to set this up in the 
lab...soon.

../C

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