2750n does not appear to support (correct me if I'm wrong) a usage by capacity limit. What I mean by this is that I get 100gig a month and would like a warning/log when the usage hits a threshold. Would be even better if I could restrict by IP address. i.e. allow an internal IP address say 20 gig a month. I can see that speed can be restricted but not usage.

Hope this makes sense

Enjoy