QoS issue

[eiregobragh]

Hi all,
I'm trying to set up a QoS policy whereby traffic coming from a certain Vlan is limited to 192k on the WAN interface of a 4507R.

Can anyone help with the code here please as I'm fairly clueless and this is urgent????

Many thanks,

Paul

Paul Kilcoyne B. Eng.
Innealtóir/ Engineer

http://www.pknetworks.ie

 

[lerdalt]

Here is a quick snippet of what I've done:

1. Identify the packets with an ACL:
ip access-list extended ACL-MA
permit ip any 10.35.0.0 0.0.0.255
permit ip 10.35.0.0 0.0.0.255 any

2. Match the packets with class map:
class-map match-any CM-MA
match access-group name ACL-MA

3. Create a policy to set an action.
policy-map PM-MO_MAN_QUEUING
class CM-MA
police 1024000
exceed-action drop

4. Apply policy to your outbound interface with the service-policy command.


This just polices the traffic so that anything from the 10.35.0.0 subnet will not go above 1,024,000 bps.

I'm sure there is a better way to do it, but this is what I've been using so far in a few instances and it's been working great.

 

[eiregobragh]

Hey,
that's great, thanks so much for the help. I'll give it a try.

Slán,

Paul

 

[burtsbees]

Actually, that IS the best way to do it. However, you may need a conform-action statement with the exceed-action as well...

Burt

 

[eiregobragh]

Guys,
just before I implement this piece of code, will this affect other traffic from other Vlans using the WAN interface?

All I want to do is limit traffic from one particular Vlan but leave the other vlans unaffected.

Thanks again,

Paul

Paul Kilcoyne B. Eng.
Innealtóir/ Engineer

http://www.pknetworks.ie

 

[burtsbees]

Just the 10.35.0.0 subnet.

Burt