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Differential forwarding in address-based carrier networks

  • US 9,356,862 B2
  • Filed: 09/05/2014
  • Issued: 05/31/2016
  • Est. Priority Date: 04/06/2004
  • Status: Expired due to Fees
First Claim
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1. A carrier Ethernet network configured for providing a Virtual Private LAN Service (VPLS), the carrier Ethernet network comprising:

  • a first node configured;

    to receive a frame from a customer, the frame having a first customer MAC address as a customer source MAC address and a second customer MAC address as a customer destination MAC address;

    to encapsulate the frame for transport across the carrier Ethernet network with a VLAN identifier, an encapsulating source MAC address and an encapsulating destination MAC address, the encapsulating source MAC address being a MAC address of the first node; and

    to forward the encapsulated frame across the carrier Ethernet network based on the combination of the VLAN identifier and the encapsulating destination MAC address; and

    a second node configured;

    to receive the encapsulated frame;

    to configure a mapping between the customer source MAC address of the frame and the MAC address of the first node, the MAC address of the first node being learned from the encapsulating source MAC address of the frame; and

    to forward the frame to the customer based on the customer destination MAC address.

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