Rate limit VLAN on Cisco 3560

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Jun 30th, 2009
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Hello


I`m trying to rate limit some specific traffic passing through a 3560 switch on some VLANs.


What I have done is create an access list:

access-list 101 permit icmp any any echo

access-list 101 permit icmp any any echo-reply


Then I set a rate limit on the VLAN interface:

rate-limit input access-group 101 128000 8000 8000 conform-action transmit exceed-action drop

rate-limit output access-group 101 128000 8000 8000 conform-action transmit exceed-action drop


CEF is enabled.


But this does not rate limit the traffic like it should, what am I missing here?

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Joseph W. Doherty Wed, 07/01/2009 - 02:57
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From latest 3560 configuration guide:


Unsupported Interface Configuration Commands


rate-limit


You might want to consult configuration guide QoS chapter's section on "Policing on SVIs", e.g. http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_50_se/configuration/guide/swqos.html#wp1766801, for your IOS.

cisco_lad2004 Wed, 07/01/2009 - 04:19
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I recall having same issues on this platform. I used following workaround:


1-I know 3560 can police inbound, so I used a service policy on physical port. referring to a class map & ACLs.


2-for outbound, I used the upstream port ad policed its traffic inbound.


HTH


Sam

perpaal Thu, 07/02/2009 - 04:28
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Thank you for quick reply.


I have done some VLAN filter, bot nothing like in the linked article.


How would I do this config for desired results?

lordsporkton Thu, 07/02/2009 - 08:42
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I am a little fuzzy but I believe you have to turn on "mls qos" have you done this?

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