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About CAR

biao-shen
Level 1
Level 1

Hi all,

what's the difference about following configuration?

and in configuration 2 , can it limit the total input bandwidth to 10M?

1. access-list 100 permit tcp any any eq http

interface f0

rate-limit input 10000000 1875000 1875000 conform-action continue exceed-action drop

rate-limit iput access-group 100 1000000 187500 187500 conform-action set-prec-transmit 4 exceed-action transmit

2. access-list 100 permit tcp any any eq http

interface f0

rate-limit iput access-group 100 1000000 187500 187500 conform-action set-prec-transmit 4 exceed-action transmit

rate-limit input 10000000 1875000 1875000 conform-action continue exceed-action drop

BRs

biao

3 Replies 3

kmarrero
Level 4
Level 4

The following URL explains the commands for configuring CAR and what total bandwidth it can limit.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/qos_c/qcprt1/qcdcar.htm

preddyi
Level 3
Level 3

Hi,

1.In the first configuration

If Total bandwidth goes above 10Mb and less than 11.8Mb, next rate-limit statement will be executed.If goes above 11.8Mb will get drop.

2.In the second configuration

All inbound HTTP traffic will not have a rate-limit.

All other traffic works same as the first configiuration.

3.If you want to limit the total B.W. to 10Mb

just enter as bellow.

interface f0

rate-limit input 10000000 1875000 1875000 conform-action transmit exceed-action drop

Regards

Hi Preddyi,

Maybe you are right, but i am not sure.

BRs

biao