BGP vs. static routing (Re: Why Vadim likes statics)

Tue Apr 25 15:38:56 UTC 1995

>So it does not make sense for IBM or Sony to run dynamic routing
>in their internal networks?!?

That depends.  If the topology can change then you probably want dynamic
routing.  Usually when I set up a Sony-sized IGP, I run dynamic in the core
and use statics to reach the edges, since while there are usually backup
paths in the core, the edges tend to be singly connected.  This is identical
to the reasoning I'd use if I were designing an NSP.

That's what was meant by:

> Why?  What we have been arguing for has been limiting
> the scope of dynamic routing only to places where
> participating in global dynamic routing makes sense.