MAE West

Fri Jul 11 16:54:18 UTC 1997

Yes, all 4 OC-3c circuits do terminate at the MFS Gigaswitch-01.  It is
a single point of failure, but the ckts must all be on the same switch
in order to use the load-sharing feature.

-Lance-

On Fri, 11 Jul 1997, Rodney Joffe wrote:

> 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
> 
> 
> 
> 