How to fix vlan's rate in a trunk ?

[LucBourget]

Our configuration : 1 x 2950G-48 with uplink 1 Gb/s

There are 3 vlans.

--> uplink is configure as a trunk.

We want that vlan3 don't use more than 100 Mb/s in the uplink.

Is it possible to do this ?

Thanks for your help,

LB.

[pflunkert]

Hi,

yes it should be possible. You must mark all traffic in the vlan 3 (with dscp 10 for example) and drop the exceeded traffic through a policy map:queue.

Switch(config)# policy-map flow1t

Switch(config-pmap)# class ipclass1

Switch(config-pmap-c)# police 10000000 8192 exceed-action dscp 10

Switch(config-pmap-c)# exit

Switch(config-pmap)# exit

Switch(config)# interface gigabitethernet0/1

Switch(config-if)# switchport mode access

Switch(config-if)# service-policy input flow1t

The policy works only incoming, but when you enable it on both sites it should works.

The link will help you with the configuration:

http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_guide_chapter09186a00802c31e8.html#wp1083017

Regards

Peter