6500 police/rate-limit egress

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Jun 30th, 2008
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I am trying to do an egress rate-limit on a 6500 Sup720/PFC3B 10/100 port. Everything I read seems to say it supports egress rate-limiting, but it will never let me bind a policy-map "output" on my interface. I am trying to rate-limit a 100Mbps interface to 10mbps/10Mbps. This is what I have so far. My ingress rate-limit seems to be working just fine. Any help would be greatly appreciated! Much Thanks....ahead of time.

access-list 100 remark QOS ACL For Rate-limiting Traffic

access-list 100 permit ip any any

class-map match-any limit_10Mb

description Rate-Limit 10Mb Ingress

match access-group 100

policy-map 10Mb_ingress

description Police 10Mbps Ingress

class limit_10Mb

police cir 10485500 bc 327671 be 327671 conform-action transmit exceed-action drop violate-action drop

interface FastEthernet4/29


switchport access vlan 136

switchport mode dot1q-tunnel

switchport nonegotiate

mtu 9216

no ip address

load-interval 30

l2protocol-tunnel cdp

no cdp enable

spanning-tree portfast

spanning-tree bpdufilter enable

service-policy input 10Mb_ingress

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eknell Tue, 07/01/2008 - 06:15
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I apprecaite your help, but both GTS and CAR in the two links you sent me are for a layer3 interface.

I need to do egress rate limiting on a layer2 interface. Both the "rate-limit" and "traffic-shaping" commands are only allowed on a layer3 interface.

Do you happen to know somthing for layer2?


Pravin Phadte Tue, 07/01/2008 - 06:22
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On layer 2 you can implement srr-queue

Its works a bit different:

Switch(config-if)# srr-queue bandwidth ?

limit -Configure bandwidth-limit for this interface

shape -Configure shaping on transmit queues

share -Configure shared bandwidth

below is the link for cisco 2690 switch.




eknell Tue, 07/01/2008 - 07:25
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I actually use the "srr-queue bandwidth" command currently on some of my 3560G switch's and it works fine, but my 6500's seem to only support Weighted Round-Robin queuing?

I an running ver 12.2(18)SXF8 on Sup720-3B's?

Do you know if I can do anything with egress rate-limiting and the "wrr-queue bandwidth" command, because it won't let me set a limit and seems to only let me specify a weight to queue ratio.

Thanks for your help!


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