multi homing pressure

Wed Oct 19 15:54:53 UTC 2005

On Wed, 19 Oct 2005, Christopher L. Morrow wrote:

> > > "Gartner said every location that requires mission-critical
> > >  internet connectivity, including externally hosted
> > >  websites, should be multi-homed"
> >
> > 200k routes, here we come!
>
> it is just good common sense though, eh?

Well, not necessarily.

Tier-2s should be given much more credit than they typically are in
write-ups like this.  When a customer is single homed to a tier-2 that has
multiple tier-1 upstreams, and uses a delegated netblock from the tier-2's
aggregations, that means one less ASN and one or more less routes in the
global table.

It's a Good Thing(tm).

-- 
-- Todd Vierling <tv at duh.org> <tv at pobox.com> <todd at vierling.name>