Re: Enterprise Multihoming

[Marshall Eubanks <tme () multicasttech com>]

There is another  thing - if you are multi-homed, and want to switch 
providers, it is pretty seamless and painless - no renumbering, no
loss of connection, etc., as you always have a redundant path.


On Thursday, March 11, 2004, at 12:34 PM, Pekka Savola wrote:

> <On Thu, 11 Mar 2004, Gregory Taylor wrote:
> > Mutli-homing a non-ISP network or system on multiple carriers is a 
> > good
> > way to maintain independent links to the internet by means of 
> > different
> > peering, uplinks, over-all routing and reliability.  My network on 
> > NAIS
> > is currently multi-homed through AT&T.  I use a single provider as 
> > both
> > of my redundant links via 100% Fiber network.  Even though this is
> > cheaper for me, all it takes is for AT&T to have some major outage 
> > and I
> > will be screwed.  If I have a backup fiber line from say, Global
> > Crossing, then it doesn't matter if AT&T takes a nose dive, I still 
> > have
> > my redundancy there.
>
> Well, I think this, in many cases, boils down to being able to pick
> the right provider.
>
> I mean, some providers go belly-up from time to time.  Others are
> designed/run better.
>
> For a major provider, complete outage of all of its customers is such
> a big thing they'll want to avoid it always.  If it happens, for a
> brief moment, once in five years (for example), for most companies
> that's an acceptable level of risk.
>
> --
> Pekka Savola                 "You each name yourselves king, yet the
> Netcore Oy                    kingdom bleeds."
> Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
                                 Regards
                                 Marshall Eubanks

T.M. Eubanks
e-mail : marshall.eubanks () telesuite com
http://www.telesuite.com