Ticket Number: HEA-NOC/20020820-01 Ticket Status: UPDATE Ticket Type: Unscheduled Ticket Source: HEA-NOC Ticket Scope: Site Site/Line: Uther Ticket Owner: [log in to unmask] Problem Fixer: Lancomms Ticket Opened: Problem Start: 20020820 07:30 UTC+1 Ticket Closed: Problem End: Problem Description: Tracebacks in the log on Dublin ATM access router Uther.hea.net. Affected: Traffic to ATM connected institutions at the Dublin PoP (TCD, UCD, ITnet, DCU, DIT, NUI Maynooth, DIAS, HEA, NCAD) diverted to backup ATM router for a few minutes at 07:30 and 08:30, with impeded performance. Actions: Reported to LAN Comms, ticket #lc00-5d7bpe, who have in-band access and are investigating. Hardware fault suspected at this time. 20020820 10:00 davew Further investigation by LAN Comms suggests a software problem. Case is being opened with Cisco, have asked them to raise priority as we are during the CAO critical period. 20020820 12:20 davew Another failure at 12:09. Cisco believe it is a hardware fault and are supplying are replacement ATM card for the router; swapout will be scheduled shortly. 20020820 15:06, 15:19, 15:31 AH Repeated failures. Customers reroute via backups during failures. 20020820 17:30 davew Further repeated failures, some lengthy. Shutting down ATM interface and failing over to backup router. There should be sufficient capacity on this router for overnight traffic; NOC will continue to monitor and intervene again if necessary in advance of tomorrow's card swap (HEA-NOC/20020820-02). 20020827 gs Lancomms on site, slave rsp removed, suspected hardware fault. Monitoring overnight. Traffic continues to run at reduced capacity on the backup. Time to Fix: Not yet known.