[c-nsp] Best practice in configuring internet access services.

[Vincent De Keyzer]

Hi Alex,

> To perform NAT on the border router with BGP is not a good idea i think.
> Where to NAT then?
> Who support rather big metro networks, how did you solve such problems?

We do more or less the same thing as you are doing.

AS they other guy said, we don't do NAT either (we applied for and obtained
a /17).

One thing you should watch out for is the number of MAC addresses that your
switches can support - we had to move away from Cisco due to their
limitation of 8k MAC on lower-end switches.

For optimizing bandwidth usage, we use Cisco's P-Cube (rename SCE-1010 or
-2020), which does not come for free but allows us to limit P2P, etc.

Vincent