[c-nsp] Shape users over quota

[Ivan Pepelnjak]

First of all, you should use policing, not shaping. Although it's not as
user-friendly, it's not CPU-intensive (shaping is). See this article for
potential drawbacks:

http://wiki.nil.com/Policing_vs_shaping

A very simple implementation would push the policing rules to virtual access
interfaces through RADIUS groups (and you'd just switch the user between
groups when they exceed their quota).

Obviously, some people prefer that you'd use a dedicated box, myself
included (as we offer SCE training :)

http://www.nil.com/ls/NIL_SCEO10

In a large-scale environment it makes sense to use SCE, more so as it was
developed to address the exact needs you have (whereas anything you're doing
on a router is by necessity a kludge).

Ivan
 
http://www.ioshints.info/about
http://blog.ioshints.info/

> -----Original Message-----
> From: Arie Vayner (avayner) [mailto:avayner at cisco.com] 
> Sent: Sunday, August 16, 2009 12:20 PM
> To: Ed Lazerus; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Shape users over quota
> 
> Ed,
> 
> The best approach for this kind of services (and even more 
> advanced, like different policies for different protocols 
> even if quota is
> exceeded) could be implemented with the Cisco SCE product:
> http://www.cisco.com/en/US/products/ps9591/index.html
> 
> smaller scale can be achieved with the SCE2020:
> http://www.cisco.com/en/US/products/ps6151/index.html
> 
> Arie
> 
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ed Lazerus
> Sent: Sunday, August 16, 2009 12:53
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Shape users over quota
> 
> Dear All,
> We currently use 7300's as LNS's, we have for a few years 
> worked on user pays excess, like all businesses things change 
> and so must we, we are looking to offer new plans of use 
> quota then we shape you down top 64/64kbps.
> 
> We have 3 PoPs, each have approximately 25-30K users, we 
> would expect around 10K users each PoP will need shaping 
> based on current usage (which is only increasing).
> 
> Is this an easy task on the 7300 LNS's?  Or should we be 
> looking more towards dedicated special hardware for this 
> task, if it helps, we are soon replace 7300  LNS's in at 
> least one PoP with a ESR10K, the LNS's also perform netflow 
> for traffic accounting, the CPU's average around %50 each router.
> 
> Thank you.
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net 
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
> 
>