UIT Alert: Core Networking Services

    Current Status

    ResolvedCore Network Services

    Resolution Statement

    Actions and Root Causes

    UH analysts replaced a hardware component that failed on one of our critical network devices.

    Affected Services

    • AccessUH
    • Blackboard Learn 9
    • Lync
    • CMS (Cascade Server)
    • UH Wired network

    Event Updates

    UnavailableCore Networking Services
    March 30, 2015 , 2:12 PM
    It has been reported that a service affecting incident exists for the following services:

    Core Networking Services

    ITAC is coordinating with administrators and support staff who are currently working on the problem, and assessing the scope and impact.

    An update will be issued once additional information has been collected.
    IssueUpdate : Core Networking Services
    March 30, 2015 , 3:25 PM

    High CPU utilization on a core router resulted in network services being disrupted or unavailable. Analysts are investigating to determine the cause. An interface on the router was disabled to minimize the impact, but is unclear at this time if it is a direct contributor to the incident. ITAC is closely monitoring the situation to minimize further service disruption.

    DisruptedUpdate : Some network degradation still occuring
    March 30, 2015 , 5:24 PM
    Network analysts have opened a case with Cisco TAC, and continue to investigate. Melcher Hall and UH Sugarland Campus have reporting continuing service degradation as a result of this incident. Reports include service latency and service disconnects.
    DisruptedUpdate #2 : Core Networking Services
    March 31, 2015 , 7:49 AM

    There is a service affecting incident for the following services:

    Core Networking Services

    ITAC, in coordination with administrators and support staff, have developed the following impact assessment:

    Reports include service latency and service disconnects. Network analysts have opened a case with Cisco TAC and continue to investigate.

    The estimated time to repair is unknown.

    DisruptedUpdate #3 : Core Networking Services
    March 31, 2015 , 10:36 AM

    University Information Technology continues to work on a problem with the UH internet connection. You may experience slow internet service or intermittent disconnections throughout the day as technicians, Cisco System and our internet service providers work to resolve the issue.

    Thank you for your patience, if you have concerns or need special assistance, please contact the help desk at 3-1411.

    DisruptedUpdate #4 : Core Networking Services
    March 31, 2015 , 10:20 PM

    We are providing an update to the intermittent network problems that the campus has been experiencing. Incremental progress was made throughout the day as different solutions were implemented.  However, we continue to experience some internet connectivity issues.  UH analysts, in consultation with vendors and contractors identified and are working to address a hardware failure on one of our critical network devices.

    ResolvedCore Network Services
    April 1, 2015 , 1:30 PM

    The intermittent network problems that the campus have been experiencing are resolved. All services are operating normally at this time.