Ticket Number: HEA-NOC/19990420-02 Ticket Status: CLOSE
Ticket Type: Scheduled Ticket Source: HEA-NOC
Ticket Scope: Site Site/Line: HEAnet <==> All Sites
Ticket Owner: [log in to unmask] Problem Fixer: HEA-NOC
Ticket Opened: Problem Start: 19990424 07:30 UTC+1
Ticket Closed: 19990426 13:50:56 UTC Problem End: 19990424 09:45 UTC+1
Powerdown in the NOC for installation of a UPS, and subsequent
rearrangement of interfaces on backbone routers in preparation
for US upgrade.
Connectivity to all sites.
Servers were shut down beginning at 07:35 and the backbone routers
were powered off at 07:50. An electrical problem slowed the cutover
but powerup began at 08:40 with the routers.
At 09:15, Janet/TEN-155 and INEX links were moved to Kinnegad;
traffic backed up over the U.S. link.
At 09:30 an interface was removed from Moskva, which caused the
router to reboot unexpectedly. All sites except those on ATM suffered
a 2 minute outage.
At 09:40, UL was moved, with a 1 minute outage. At 09:50, NUI
Maynooth was moved, with a similar outage.
Time to Fix:
The purpose of the interface moves was to take the opportunity of
the scheduled outage to spread load more evenly over the backbone.
News is expected very shortly on our U.S. upgrade and no further
outages should be necessary to introduce this.