Bandwidth Restriction on each port Layer 3750 Layer 3 Switch

sulekhnain · ‎06-25-2007

I have a Cisco 3750 layer 3 switch. I want to limit the bandwidth to 1 Mbps on each port of switch. Can i do that & if yes then How ?

Please let me know

royalblues · ‎06-25-2007

Friend,

You can use policing to limit the bandwidth.

Switch(config)# access-list 1 permit any

Switch(config)# class-map ipclass1

Switch(config-cmap)# match access-group 1

Switch(config-cmap)# exit

Switch(config)# policy-map flow1t

Switch(config-pmap)# class ipclass1

Switch(config-pmap-c)# police 1000000 8000 exceed-action drop

Switch(config)# interface gigabitethernet2/0/1

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

have a look at this link

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12225see/scg/swqos.htm#wp1044737

HTH, rate if it does

Narayan

sulekhnain · ‎06-25-2007

Thanks a lot Sir,

I am able to control the input traffic on the port with about said configuration. But when I applly service-policy on output of port, it says that "Warning: Assigning a policy map to the output side of an interface not supported"

Please let me know how to apply service policy on output of port.

Thanks,

Sulekh Nain

Pavel Bykov · ‎06-25-2007

Alternatively, you can do it over class-default, without using Access List.

eg:

policy-map LIMIT_1M

class class-default

police 1000000 8000 exceed-action drop

interface range gigabit 1/0/1 - 24

service-policy input LIMIT_1M

sulekhnain · ‎06-25-2007

Thanks a lot Sir,

I am able to control the input traffic on the port with about said configuration. But when I apply service-policy on output of port, it says that "Warning: Assigning a policy map to the output side of an interface not supported"

Please let me know how to apply service policy on output of port.

Thanks,

Sulekh Nain

Edison Ortiz · ‎06-25-2007

The easiest way is by using storm control.

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12235se/scg/swtrafc.htm#wp1063295