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Method and apparatus for outage measurement

  • US 7,523,355 B2
  • Filed: 09/25/2006
  • Issued: 04/21/2009
  • Est. Priority Date: 07/30/2002
  • Status: Expired due to Term
First Claim
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1. An apparatus, comprising:

  • one or more processors;

    a memory coupled to the processors comprising instructions executable by the processors, the processors operable when executing the instructions to;

    monitor for outages occurring locally at a network device that forwards communications sent from one or more remote endpoints located in a first network through the network device, to a second different network;

    monitor for outages occurring remotely on first network links located in the first network;

    identify outage information according to the local and remote monitoring;

    send the outage information from the network device, over the second network to a remote system that is located outside the first network and that monitors for outages located on second network links that are located outside the first network;

    generate time stamp values according to a configured period;

    store the periodically generated time stamp values in a local storage;

    when recovering from a local crash, compare a most recently stored time stamp value to a local current system time to determine an outage measurement for the local crash; and

    include the outage measurement within the outage information.

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