From: ismail el-shalh (ishelh_mdsa@yahoo.com)
Date: Sat Jun 30 2007 - 04:54:25 ART
Policers determine whether each packet traverse the router conforms or exceeds the tokens and take the action specified.
The action you can take as follows:
drop
set-clp-transmit
set-discard-class-transmit
set-dscp-transmit
set-frde-transmit
set-mpls-exp-imposition-transmit
set-mpls-exp-topmost-transmit
set-prec-transmit
set-qos-transmit
transmit
Now shapers meter the transmission rate of packets through a network, it is different from policers in that they delay packets that exceed the CIR. this delay can smoothes out bursts in traffic flows and make you able to conform to such SLA.
If I am not mistaken , shaping would be preferred for slow links such as 2Mbps or slower, this is because if you police on slow link and the traffic get drop the TCP will re-transmit the packet again (assuming TCP session).
Ismail El-Shalh :)
Senior Network Engineer
Computer & Communication
MMR/MDSA
Mobile : +966-505-893-568
ishelh@mdsa.com
----- Original Message ----
From: "b_lamine@yahoo.fr" <b_lamine@yahoo.fr>
To: ccielab@groupstudy.com
Sent: Saturday, June 30, 2007 10:14:58 AM
Subject: Traffic Shaping vs Traffic policing
Hi All,
Can anyone explain what is the difference between Traffic Shaping and Traffic policing.
Regards,
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