[c-nsp] iBGP - Multihoming ideas

[John Gitau]

-> Depends on what your goals are.  What do you want to achieve 
-> using BGP on these routers?  Do you want the Branch A router 
-> to learn all the routes from Branch B and HQ and do path 
-> selection on its own?  Should Branch B simply default route 
-> to Branch B and HQ and let those routers make the outbound 
-> transit decision?  Do you want to prefer one exit path vs
another?
-> ...etc...etc...

I want router A to learn everything from both routers and do the
path selection. The main concern right now is routes from the
Exchange point are sent to Branch A from both branch B and the
HQ. Both HQ and Branch B need to send a default route to Branch A
because some routes to the larger internet are not on their
routing tables.

So far the best way seems to be establishing two route reflectors
at Branch B and the HQ this is especially going to be important
if I ever need to connect other BGP speaking routers in the
future.

**Gitau