North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: MCI outage
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 > - - - - - - - - - - - - - - - - -
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