Re: Police CIR and police rate.

From: Serhat Aslan (serhatworks@gmail.com)
Date: Mon Jul 23 2007 - 20:13:14 ART


Hi Julio,
  Your solution unit is packet per second, valid solution unit is bit per
second.
 -----
Serhat Aslan

On 7/23/07, Victor Cappuccio <vcappuccio@ccbootcamp.com> wrote:
>
> Hi Julio,
>
> Traffic policing controls the maximum rate of traffic sent or received on
> an
> interface. Based on the results of the token bucket measurement, an action
> can
> be configured to mark packets and separate packets into multiple classes
> or
> levels of service.
>
> For police rate Command
>
> By UniverCD
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r/
> qos_o1h.htm#wp1090915
> <
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r
> /qos_o1h.htm#wp1084265>
> Use the police rate command to limit traffic that is destined for the
> control
> plane on the basis of pps, bps, or a percentage of interface bandwidth
>
>
> Examples
>
> The following example shows how to configure policing on a class to limit
> traffic to an average rate of 1500000 pps:
>
> Router(config)# class-map telnet-class
>
> Router(config-cmap)# match access-group 140
>
> Router(config-cmap)# exit
>
> Router(config)# policy-map control-plane-policy
>
> Router(config-pmap)# class telnet-class
>
> Router(config-pmap-c)# police rate 1500000 pps burst 500000 packets
>
> Router(config-pmap-c)# exit
>
> For police CIR
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r/
> qos_o1h.htm#wp1084265
> <
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r
> /qos_o1h.htm#wp1084265>
> police <cir> <bc> <be> to configure a 1 rate policer.
>
> or
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r/
> qos_o1h.htm#wp1084420
> <
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r
> /qos_o1h.htm#wp1084420>
>
> police cir <cir> pir <pir> to configure a 2 rates policer.
>
> A good DocCD Example is
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r/
> qos_o1h.htm#wp1084265
> <
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hqos_r
> /qos_o1h.htm#wp1084265>
> A good GS link about a police Thread
> http://www.groupstudy.com/archives/ccielab/200509/msg00978.html
> <http://www.groupstudy.com/archives/ccielab/200509/msg00978.html>
> http://www.cisco.com/warp/public/105/cbpcar.html#topic1
> <http://www.cisco.com/warp/public/105/cbpcar.html#topic1>
> My 2 Cents
> thanks,
> Victor Cappuccio.-
> - CCSI# 31452
>
> Network Learning Inc - A Cisco Sponsored Organization (SO) YES! We take
> Cisco Learning credits!
> vcappuccio@ccbootcamp.com <mailto:vcappuccio@ccbootcamp.com>
> http://www.ccbootcamp.com <http://www.ccbootcamp.com/> (Cisco Training
> and
> Rental Racks)
> Voice: 702-968-5100
> FAX: 702-446-8012
>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of Julio Carrasco
> Sent: Mon 7/23/2007 11:37 PM
> To: ccielab@groupstudy.com
> Subject: Police CIR and police rate.
>
>
>
> Hi all,
>
> Do anyone what is exactly the difference between those two configs:
>
> policy-map HTTP
> class HTTP
> police cir 256000
>
> and
>
> policy-map HTTP
> class HTTP
> police rate 256000
>
> Doing a IE lab I did the second config, but in the solutions i saw
> they did
> the first, and I don4t understand why, so they are no using any burst or
> peak
> rate.
>
> Thanks in advance, Julio.
>
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