The network is experiencing a continuing problem within the
10gig core routers. This does not appear as a total outage, but as a
general slowdown as traffic seeks alternate routing around the switch that has
the problem at any point in time.
The first event occurred at about 11:00 PM Wednesday Aug
15. At that time an Extreme Networks router processor card shutdown at
the Ann Arbor
site. The router was restarted and appeared to be functioning properly.
Since then at least three other Extreme networks routers have exhibited the
same symptom. Two of the routers also shutdown their 10gig interface cards.
The issue has moved from router to router (not always the same router) and
sometimes requires more than one restart for recovery.
At this point engineers from Extreme Networks are one the
phone with Merit reviewing the console and log dumps from the routers.
This does not appear to be a known problem with the routers.
Thank you for your patience and understanding.
Robert Duncan
Manager Backbone Network Engineering
Merit Network, Inc.
734-615-2241
