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PHYSICAL PATH DETERMINATION FOR VIRTUAL NETWORK PACKET FLOWS

  • US 20130332602A1
  • Filed: 03/15/2013
  • Published: 12/12/2013
  • Est. Priority Date: 06/06/2012
  • Status: Active Grant
First Claim
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1. A method for determining a physical network path of a packet flow comprising:

  • generating, with a network device, one or more flow trace packets having incrementally increasing respective time-to-live (TTL) values;

    sending, with the network device, the flow trace packets on an outbound interface of the network device for the physical network path; and

    receiving, with the network device, corresponding time exceeded messages for the flow trace packets, wherein each of the time exceeded messages includes a source network address of a network element on the physical network path.

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