From: marvin greenlee (marvin@ccbootcamp.com)
Date: Tue Mar 01 2005 - 23:37:11 GMT-3
Depending on the particular requirements, you may need to apply as an
ingress 'per-port per-vlan' policy, since the 3550 will not allow you to
attach a service policy to a vlan interface.
Cisco - 3550 Configuration Guide - QoS - Classifying Traffic on a Per-Port
Per-VLAN Basis by Using Class Maps -
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12113ea1/3550scg/s
wqos.htm#1145280
Marvin Greenlee, CCIE#12237, CCSI# 30483
Network Learning Inc
marvin@ccbootcamp.com
www.ccbootcamp.com (Cisco Training)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
marvin greenlee
Sent: Tuesday, March 01, 2005 5:53 PM
To: jongsoo.kim@intelsat.com; ccielab@groupstudy.com
Subject: RE: CAT CAR question [bcc][faked-from][bayes]
Importance: Low
On the 3550, you can use the police command to rate limit traffic. The
syntax is 'police rate-bps burst-byte [exceed-action {drop |
policed-dscp-transmit}] ' under policy map configuration.
So, to police to 2Mb with 64Kb you would configure 'police 2000000 8000
exceed-action drop'. (Note that the normal burst value is in bytes, where
the rate is in bits per second.
cat3550-1(config-pmap-c)#police ?
<8000-1000000000> Bits per second
aggregate Choose aggregate policer for current class
cat3550-1(config-pmap-c)#police 2000000 ?
<8000-2000000> Normal burst bytes
cat3550-1(config-pmap-c)#police 2000000 8000 ?
exceed-action action when rate is exceeded
<cr>
cat3550-1(config-pmap-c)#police 2000000 8000 exceed-action ?
drop drop packet
policed-dscp-transmit change dscp per policed-dscp map and send it
cat3550-1(config-pmap-c)#police 2000000 8000 exceed-action drop
3550 Command Reference - Police -
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225se/3550cr/cli
1.htm#wp1864073
Marvin Greenlee, CCIE#12237, CCSI# 30483
Network Learning Inc
marvin@ccbootcamp.com
www.ccbootcamp.com (Cisco Training)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
jongsoo.kim@intelsat.com
Sent: Tuesday, March 01, 2005 5:37 PM
To: ccielab@groupstudy.com
Subject: CAT CAR question [bcc][faked-from][bayes]
Importance: Low
Question is
Rate limit a traffic on VLAN 20 upto 2M wiht 64Kbps of normal burst rate.
I can't figure out what will be normal burst byte size based on 64Kbps.
I hope someone help this explaining relation between normal burst rate and
byte size.
In case of Frame-relay, since the time interval = 1/8 sec, I can figure out
the size of Be if I know burst rate.
But in case of CAT, I am a little bit clueless.
Thanks
Jongsoo
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