[c-nsp] limit throughput on a 3750?

[Shaun Reitan]

None of my customer equipment/servers physically connects to my 3750, they
all connect into the 2950's.  Each 2950 is connected to the 3750 and i do a
`sw mo trunk` on those ports.  So it sounds like vlan based QoS wont work
for me..

Really all that matters is that i limit this one customers traffic leaving
my network.  How can i limit on the egress interface so that only this
customer is limited to 20mbit while all other customers have a "uncaped
limit"?

~Shaun


----- Original Message -----
From: <lists at hojmark.org>
To: "'Shaun Reitan'" <mailinglists at unix-scripts.com>
Cc: <cisco-nsp at puck.nether.net>
Sent: Friday, May 13, 2005 9:51 AM
Subject: RE: [c-nsp] limit throughput on a 3750?


> > This specific customer has 30 machines or so now on 3 diffrent
> > 2950G-EI-48's, those switches are trunked to the 3750.  The
> > vlan lives on the 3750 (vtp server) and the 2950's are vtp
> > clients.  The customer wants a 20mbit limit for all of his
> > servers combine.  Meaning that if every server was pushing
> > 1mbit, totaling 30mbit that they would be limited down to
> > 20mbit.
>
> > So... what your saying is that i need to apply this VLAN-based
> > QOS to every port his server is attached to (on the 2950)?
>
> No, actually I wrote that if all you wanted is to limit the
> traffic from that customer, as it exits the 3750, you can do
> that on the egress interface.
>
> But otherwise yes if you want to do VLAN-based QoS, you need
> to turn that on on all VLAN member ports.
>
> > What about the ports that trunk to the 2950's?
>
> Are they actually trunk ('switchport mode trunk') or are they
> access ports?
>
> If they're trunk, then I think VLAN-based QoS is out of the
> question, and you're back to policing it on the egress interface.
> But if I understand you're setup correctly, that all sounds like
> a perfectly fine solution.
>
> -A
>
>