[69096] in North American Network Operators' Group
IP VPNs and Reliability
daemon@ATHENA.MIT.EDU (John Neiberger)
Thu Mar 25 11:18:55 2004
Date: Thu, 25 Mar 2004 09:14:39 -0700
From: "John Neiberger" <john.neiberger@efirstbank.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
We've been researching various VPN options for past year or so and we're
in discussions with yet another vendor regarding their MPLS-based
solution. All but one of the vendors we've talked to suffer from a
similar 'problem', but I'm curious to get your opinions on this. I'm
wondering if I'm more concerned about this problem than I should be.
Most of the vendors we've talked to only have a single POP in our area.
It seems to me that if we were to choose an option like that we'd, in
effect, have a network of point-to-point circuits terminating at that
one POP. I'm not that familiar with the hardware but I suppose it's
possible that all of those circuits would be terminating on just a
couple of huge routers. My concern is that a problem in one POP could
take down our entire network, whereas with our current frame relay
vendor we have great geographic diversity with the frame/ATM switches.
The vendors who have a single POP that we've looked at are MCI and
Virtela. [I must say hello to Gene and Brice at Virtela since I know
they'll get a copy of this. <g>] Given that these vendors seem to have
rather robust infrastructure, am I more worried than I need to be that
all of our connections might terminate at the same spot? I'm sure those
POPs are almost bullet-proof, but I'm still a little leary to put all of
our eggs into a single basket like that.
Any opinions would be welcome, especially if my assumptions are wrong
and you'd like to correct me.
Regards,
John
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