[c-nsp] Can I use BGP instead of any IGP?

[Mark Tinka]

On Wednesday, May 30, 2012 03:34:04 AM Andrew Jones wrote:

> In enterprise WAN environments, you could use BGP as the
> sole routing protocol, if you treat each individual site
> as a separate AS (private AS numbers offcourse).
> 
> Depending on the size / complexity of the campus, you
> might still need an IGP within the campus. Again you
> could treat each individual router as a separate AS,
> forming ebgp peers across links where dynamic peers
> would ordinarily appear.

It didn't sound like this is what the OP was after; you're 
right, it would work but seems awfully complex :-).

I think the OP was after replacing any IGP with BGP, 
including using BGP for BGP. The latter is easy, the former, 
not so much.

Mark.