Per host bandwidth limiting

2044418Puts · ‎08-21-2009

Hi,

I'm working on the following situation:

LAN (10.0.0.0/22) ---> Gig0/1 Router Gig0/0 ---> 50 mbps Internet connection.

I would like to configure a PER HOST bandwidth limitation of 1 mbps. How can this be achieved?

I was thinking about the following situation:

ACL TRAFFIC_GIG_0_1_IN

permit ip 10.0.0.0/20 any

ACL TRAFFIC_GIG_0_1_OUT

permit ip any 10.0.0.0/20

class-map TRAFFIC_GIG_0_1_IN_CM

match acl TRAFFIC_GIG_0_1_IN

class-map TRAFFIC_GIG_0_1_OUT_CM

match acl TRAFFIC_GIG_0_1_OUT

policy-map TRAFFIC_GIG_0_1_OUT_PM

class-map TRAFFIC_GIG_0_1_OUT_CM

police 1000000 conform-action transmit exceed-action drop

policy-map TRAFFIC_GIG_0_1_IN_PM

class-map TRAFFIC_GIG_0_1_IN_CM

police 1000000 conform-action transmit exceed-action drop

int giga 0/1

service-policy input TRAFFIC_GIG_0_1_IN_PM

service-policy output TRAFFIC_GIG_0_1_OUT_PM

Dont mind the exact syntax...

Will this work or will this just ratelimit the subnet as a whole?

Thanks!

mlouis · ‎08-23-2009

If you have a 4500/6500 you can use microflow policing. See that feature here.

4500

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/37sg/configuration/guides/qos.html#wp1371348

6500

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd803e5017.html

Otherwise, how many hosts do you have? You could rate limit per host but there is a limit on the number of policies and classes per device so it doesn't scale really well.