From: Ouellette, Tim (tim.ouellette@eds.com)
Date: Sun Apr 27 2003 - 02:29:13 GMT-3
Hey all, going over the CAR configs and i'm having some trouble
understanding the values. I'm looking at the following document..
http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1831/products_com
mand_reference_chapter09186a0080080786.html#1037428
Below is the command that I've entered
rate-limit input access-group 101 20000000 24000 32000 conform-action
set-prec-transmit 5 exceed-action set-prec-transmit 0
and this is the output from the box
Router_2#sh int rate-limit
Ethernet0
Input
matches: access-group 101
params: 20000000 bps, 24000 limit, 32000 extended limit
conformed 3 packets, 246 bytes; action: set-prec-transmit 5
exceeded 0 packets, 0 bytes; action: set-prec-transmit 0
last packet: 8992ms ago, current burst: 0 bytes
last cleared 00:00:31 ago, conformed 0 bps, exceeded 0 bps
What i'm wondering is this. The maximum rate inbound is 20mbit, but how is
the 24000 limit (24000 burst-normal) calculated?
I'm having trouble understanding the second + third value. Let's say I
wanted a customer to be limit to 128k only so if I tried to says bps =
128000 and 0 for burst-normal and burst-exceed. It appears that I can't
configure anything lower than the MTU.
Router_2(config-if)#rate-limit input 128000 1000 2000 conf trans exceed drop
Illegal normal burst size
Increasing normal burst size to mtu size 1500
Router_2(config-if)#
If anyone can help, I'd be greatful.
Tim
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