[SCFN] ITS ALL ABOUT THE BACKBONE - THE INTERNET BACKBONE

[Brian Whalen]

Kim Callis wrote:

> Brian,
> 
> By using BGP to do the routing, does that bond the incoming routes or 
> does the outgoing get routed to the various providers in a round-robin 
> (or spanning) sort of way?
> 
> K.
> 


There are several BGP knobs that can be twisted to do this, typically 
you would receive a full routing table from each of the providers you 
peer with, and then as far as outgoing traffic is concerned, your router 
will decide based on several criteria, have a look at 
http://www.cisco.com/en/US/docs/ios/12_2/ip/configuration/guide/1cfbgp.html 
specifically the how BGP selects paths section.

Brian