[nsp] Rate limit question...

[Johan M. Andersen]

> I have a situation where we have a few bandwidth hogs doing chewing up a 
> remote site that has a limited amount of bandwidth.  Most of this is day 
> time desktop back-ups to the main site.  I have been able to successfully 
> rate limit the individuals but there is a /23 of address space there and I 
> don't want to creat a new limit statement for each user !!!! 
> 
> My question is... is there a way to apply a rate limit that will limit 
> each user to a certain level of unfetterd bandwidth and then drop them 
> into a lower priority que?  I know I can do this with individual 
> statements and I know that I can do this for a blosk (but the rules and 
> limits are applied to the block itself as an aggregate and not 
> individually...).  

Depending on your resources (in terms of time and an additional computer to
run stuff on), take a look at FlowMonitor
http://www.columbia.edu/acis/networks/advanced/FlowMonitor/
which is a netflow based system for enforcing bandwidth quotas for
individual IPs.

/johan
[plug plug plug :)]