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Analyzing virtual private network failures

  • US 8,102,758 B2
  • Filed: 03/05/2007
  • Issued: 01/24/2012
  • Est. Priority Date: 03/05/2007
  • Status: Active Grant
First Claim
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1. A network management system for determining impacted units, comprising:

  • a gathering component that receives data from an origin device on a computer network, the received data including a label and being sent by the origin device to a target device within the computer network, extracts the label from the received data, and transmits the received data to the target device within the computer network; and

    an identifying component that identifies impacted units affected as a result of a network communication failure based on the data obtained by the gathering component, the identifying component comprising an analyzing component, a comparison component, and a searching component,wherein the analyzing component determines an Internet Protocol (IP) address that corresponds to the label;

    wherein the comparison component compares the label against information located in the source device to determine a Virtual Routing and Forwarding (VRF) that uses the IP address to reach the target device; and

    to determine, within the VRF, a customer destination label that uses the IP address, the customer destination label identifying an impacted unit that share a path connected to the target device, and the impacted unit being affected as a result of a network communication failure related to the path; and

    wherein the searching component searches for other impacted units identified by the customer destination label without contacting the target device and without the use of an offline topological map.

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