[8652] in North American Network Operators' Group
Re: MCI outage
daemon@ATHENA.MIT.EDU (Deepak Jain)
Mon Apr 14 18:02:28 1997
Date: Mon, 14 Apr 1997 17:36:02 -0400 (EDT)
From: Deepak Jain <deepak@jain.com>
To: Allan Chong <allan@alum.mit.edu>
cc: Russ Haynal <Russ@navigators.com>, nanog@merit.edu
In-Reply-To: <33507D68.63BC@alum.mit.edu>
Getting two connections from different providers isn't necessarily just for
physical redunancy, but will help you deal with routing problems inside
networks. I have seen more T1s fail in their last mile than any mile in
between. [Ala electrical interactions with copper, etc].
Just my opinion.
-Deepak.
On Sat, 12 Apr 1997, Allan Chong wrote:
> Russ Haynal wrote:
> >
> > This brings up another point I've pondered... I've noticed that many of
> > the Backbone ISP backbone maps seem to have an amazing amount of similarity
> > - i.e. connections between identicle sets of cities. I wonder how many
> > different ISP's might be riding within the same Fiber bundle (the one right
> > below some guy's back-hoe) If BBN and Internet MCI both run inside of
> > MCI's fiber to/from a small ISP's hometown, then it won't make much sense
> > for a small ISP to get a T-1 from MCI and BBN in the name of "redundancy" -
> > If they both can be taken out with one backhoe. Might this risk still
> > exist if my UUNET/Worldcom fiber also happens to lay 2 feet away from MCI's
> > fiber in the ground in some kind of "telco right of way"
> >
>
> Often most of the major carriers will be using the same set of pipes
> across
> bridges and railway/highway overpasses. AT&T was advertising their
> "redundant path" network where they supposedly made some effort to avoid
> this. They were passing out maps and photos of spots with signs from
> all the major carriers.
>
> Power, gas, etc. are often on those same bridges.
>
>
> allan
>
