[c-nsp] cisco maximum rate-limit interfaces

[Brian Turnbow]

Hi,

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Mike
> Sent: martedì 11 settembre 2012 06:06
> To: 'Cisco-nsp'
> Subject: [c-nsp] cisco maximum rate-limit interfaces
> 
> Hi,
> 
> I have a 7201 running c7200p-advipservicesk9-mz.122-33.SRD8.bin,
> configured as a bras (pppoe). I have about 1000 simultaneous pppoe
> sessions at the moment, and most subscribers are rate-limited by their cpe
> devices (under our administrative control). There are some subscribers,
> however, which we instead use a radius profile and cisco avpairs to apply
> rate limits (ala "Cisco-AVPair += lcp:interface-config=rate-limit input
> 1000000 1100000 1300000 conform-action transmit exceed-action drop"

Instead of lcp:interface 

You should try using a policy for example sending av pair
ip:sub-qos-policy-in=700k-in

while you have configured on the router the policy

policy-map 700k-in
 class class-default
  police cir 700000 bc 32000 be 32000
   conform-action transmit
   exceed-action drop
   violate-action drop

LCP interface  creates full virtual access interfaces, be aware if you have others configured.
This is definitely a killer on the asr and 10k, but should also apply to the 7201.



Brian


> example) to their interface when it comes up. This works well, but I'm
> trying to figure out if there is a maximum or realistic number of these I
> can have at any one time and whether there are any tradeoffs or caveats to
> be aware of if scaling this up to many hundreds or more of users?
> 
> Thanks.
> 
> Mike-
> 
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