[c-nsp] 2811 performance on an Ethernet over SONET connection??

[Brad Henshaw]

Joe Freeman wrote:
 
> I tried both straight rate-limiting and traffic policing with no change in
> symptoms.
 
Did you try a policy map with 'shape average' or 'shape peak', attached in the out direction on Fa0/0? You might need to subtract from the 15Mbps rate to account for any container mapping overhead (depending on how you define your 15Mbps). Policing obviously won't be friendly to TCP, but this is irrelevant if you tested using UDP.

Also - bear in mind that shaping will chew through CPU usage on a 2811, so keep an eye on that. You should be fine with 15Mbps if they're not enabling too many other fancy features (e.g. zone based firewall/CBAC).
 
It'd also be worth double/triple-checking duplex setting/negotiation between his 2811 and your terminal/mux.
 
Regards,
Brad