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Re: Enterprise Multihoming

  • From: Marshall Eubanks
  • Date: Thu Mar 11 13:11:42 2004


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





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