MAE West

Fri Jul 11 16:26:57 UTC 1997

Another Update from our guys...

Power problems in the MFS facility caused the initial outage. Power has
been restored, but the Gigaswitch has lost it's configuration causing
all
peers to remain down.

Based on some of the mail to this list, it is GIGA 1 at MAE West, 2 and
3 are up. (Most of those complaining are on GIGA 1, Mathew at ACSI is on
GIGA 2 and thinks he's up. I can't reach him directly from NASA/Ames, so
my guess is that he is up, but can only see peers at GIGA 2 and 3 - see
next para...)

By the way, to expand the thread, I have the feeling that the three
OC-3s from NASA Ames side to MFS all go to GIGA 1, which then has fddi
loops to GIGA 2 and then to GIGA 3.

Does anyone know if this is the case?

If it is, seems that a better design would have been to route some of
the OC-3s to the other GIGAs first. If 1 is down, then it can't pass
traffic through to 2 and 3, so there is a single point of failure for
all the switches at MFS.

Rodney Joffe
Chief Technology Officer
Genuity Inc., a Bechtel company
http://www.genuity.net