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  1. noc touble ticket on UUNET/WorldCom Backbone Diffiiculties · · Score: 2, Informative

    apologies if this was posted earler... from:http://www.dotcomscoop.com/worldcom.html#outa ge

    LATEST NEWS

    Thursday October 3, 2002 @ 4:31 PM EDT

    Have fun with this one:

    FLASH SUMMARY
    FLASH NUMBER 20021003023
    ORGANIZATION UUNET
    SEVERITY LEVEL CATA
    CRITERIA 100,000 AOL User drop
    IMPACT LOSS OF DATA AND CONNECTIVITY
    NETWORK IP
    SUBNETWORK UUNET CORE NETWORK
    STATE VA
    CITY ASHBURN
    COUNTRY USA

    OUTAGE START DATE 10-03-2002
    OUTAGE START TIME 12:29:00 GMT
    OUTAGE END DATE none
    OUTAGE END TIME none GMT
    DURATION
    EQUIPMENT N/A
    CAUSE OF OUTAGE N/A
    CORRECTIVE ACTION
    TICKET SOURCE REMEDY
    TICKET NUMBER 60138
    LEC/OCC TICKET
    PVC/CKT Affected

    WEBSITE oasis.wcomnet.com

    COMMENTS

    10-03-2002 12:52 GMT
    UUNET NOC has identified a catastrophic outage. Multiple routers across the core network are unreachable. TAC and NOC engineers working to isolate the problem. Information bridge VNET # 211-5675 PIN # 236044

    10-03-2002 13:29 GMT
    UUNET reports 1462 dedicated customers affected. Senior TAC engineers still working to isolate/resolve the outage.

    10-03-2002 14:13 GMT
    UUNET NOC reports 13 routers and 240 customers are still down. NOC and TAC still working to restore those devices and customers. No firm reason for outage.

    10-03-2002 14:49 GMT
    UUNET NOC reports continuing to reload CISCO routers to restore line cards. Approximately 500 T1's and 100 multi-meg customers are down.

    10-03-2002 15:25 GMT
    UUNET NOC is continuing to troubleshoot disabled line cards. At this time there are 3 GW routers and 5 BR routers that are down. There are 332 T1 customers and 60 multi-meg customers that are affected.

    AOL has reported 15,000 new user drops since the last update. CISCO and Juniper representatives are involved in the troubleshooting process.

    10-03-2002 15:46 GMT
    UUNET NOC reports they are continuing to work with Cisco to determine the cause of the line card outages. Dedicated customers at the T1 and Multi-Meg level continue to lose connectivity.

    10-03-2002 16:08 GMT
    UUNET NOC reports currently have 97 Multi-Meg and 824 T1 customers down as line cards continue to become disabled. Ashburn NOC reloading routers as necessary to restore service. 11 GW's and 9 BR's are down. Filters are in place to capture crash information in order to provide core dumps to vendor representatives to isolate reason for outage.

    10-03-2002 16:54 GMT
    UUNET NOC reports they continue to gather card crash information from the various filters set throughout the network. 8158 T1 customers down, 360 Multi-Meg, 14 BR's and 45 GW's are down. Current strategy is to gather more info from filters to isolate reason for outage.

    10-03-2002 17:43 GMT
    UUNET NOC reports they are working with the vendor on the router crash data. They are also reviewing route updates from 12:00 GMT to identify a possible bad route update that may be causing the line cards to become disabled. There are 608 Multi-meg customers, 10 BRs and 34 GWs down at this time.

    10-03-2002 18:32 GMT
    UUNET NOC reports the network has been stable for approximately 50 minutes. The NOC is working on restoring 11 BRs and 22 GWs. There are approximately 2800 T1 and 326 Multi-Meg customers that remain down.