[nsp] 4 Mbps through a 1720?

[Terry Baranski]

> do you think I can use a 1720 as a CPE to push 4 Mbps of 
> Internet traffic to my customer?
>  
> There would be nothing like access lists or any other 
> CPU-intensive configs on it - except Multilink PPP to 
> bundle the two E1s together.

>From a theoretical standpoint, 8500 pps X 64 bytes = ~4.3Mbits/sec, a
number that tends to rise (2-4X based on the few tests I've done) as
packet size makes its way up to 1500.  

But multilink PPP or per-packet CEF may change these numbers --
impossible to know for sure without testing.

-Terry