regional ASN's

Wed Dec 1 22:05:58 UTC 2010

On 12/1/2010 3:56 PM, Patrick W. Gilmore wrote:
> Having islands which point default is not ugly.  They are probably pointing default anyway.
>

If all sites strictly do default, fine. However, one could say static 
routing would work fine there too; and then you don't need an ASN. If 
each site is multihomed (the usual reason to run BGP), you might want to 
see the routes to apply appropriate traffic policies to them.

> If not, typing "nei $FOO allowas-in" is also not ugly, IMHO.

Works, but you usually need to be careful when utilizing that method to 
prevent loops.

>
> But your network, your decision.  Mine runs fine like that.
>

I'm surprised that you left out the obvious workaround and depending on 
the traffic, the most appropriate model (leaving workaround status), 
create an encrypted channel between the networks and run iBGP over it.

Jack