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Fast path forwarding of link state advertisements using reverse path forwarding

  • US 6,871,235 B1
  • Filed: 12/10/1999
  • Issued: 03/22/2005
  • Est. Priority Date: 12/10/1999
  • Status: Expired due to Fees
First Claim
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1. A method for propagating a link state advertisement protocol message by a network device in a communication network, the network device having a plurality of interfaces, a fast path for forwarding protocol messages, and a control plane for processing protocol messages, the method comprising:

  • receiving a link state advertisement protocol message from an originating device over an inbound interface;

    determining whether the inbound interface is a reverse path forwarding interface for the originating device; and

    forwarding the link state advertisement protocol message by the fast path, if and only if the inbound interface is determined to be the reverse path forwarding interface for the originating device.

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