Granted Patent B2

US 7,996,559 · App. 12/249,944 · Granted Aug 9, 2011

Abstract

Claims (23)

1. A method of installing forwarding state in a node operating on a link state protocol controlled Ethernet network, the method comprising the steps of:

receiving, by a first node operating in the link state protocol controlled Ethernet network, a Link State protocol data unit (LSP) containing a type-length-value (TLV) having a maintenance end point identifier (MEP ID) associated with the Ethernet media access control (MAC) node identifier (ID) of a second node in the link state protocol controlled Ethernet network, where the path between the first and second node includes a plurality of links in the link state protocol controlled Ethernet network;

updating a forwarding table to indicate an association between the MEP ID and a Ethernet MAC node ID of the second node in the link state protocol controlled Ethernet network.

2. The method of claim 1 , further comprising the steps of:

receiving an operations administration and maintenance (OAM) command;

querying the forwarding table to resolve a MEP correspoonding to the MEP ID from the Ethernet MAC node ID in the command;

forwarding the command on the link state protocol controlled Ethernet network toward the MEP.

3. A method of producing an Ethernet operations, administration, and maintenance (OAM) maintenance endpoint (MEP) in a link state protocol controlled Ethernet network comprising the steps of:

hashing a Sys-ID in a node in the link state protocol controlled Ethernet network to produce a maintenance end point identifier (MEP ID);

storing the MEP ID in a type-length-value (TLV);

forwarding the TLV over the link state protocol controlled Ethernet network in Link State protocol data unit (LSP).

4. A program product comprising a non-transitory computer readable medium having embodied therein a computer program for storing data, the computer program product comprising:

machine readable logic for installing forwarding state in a node operating on a link state protocol controlled Ethernet network, the logic for installing forwarding state comprising:

machine readable logic for receiving, by a first node operating in the link state protocol controlled Ethernet network, a Link State protocol data unit (LSP) containing a type-length-value (TLV) having a maintenance end point identifier (MEP ID) associated with the Ethernet media access control (MAC) node identifier (ID) of a second node in the link state protocol controlled Ethernet network, where the path between the first and second node includes a plurality of links in the link state protocol controlled Ethernet network;

machine readable logic for updating a forwarding table to indicate an association between the MEP ID and a Ethernet MAC node ID of the second node in the link state protocol controlled Ethernet network.

5. The computer program product of claim 4 , further comprising:

machine readable logic for receiving an operations, administration, and maintenance (OAM) command;

machine readable logic for querying the forwarding table to resolve a MEP corresponding to the MEP ID from the Ethernet MAC node ID in the command;

machine readable logic for forwarding the command on the link state protocol controlled Ethernet network toward the MEP.

6. A program product comprising a non-transitory computer readable medium having embodied therein a computer program for storing data, the computer program producing an Ethernet operations administration and maintenance (OAM) maintenance endpoint (MEP) in a link state protocol controlled Ethernet network, the computer program product comprising:

machine readable logic for hashing a Sys-ID in a node in the link state protocol controlled Ethernet network to produce a maintenance end point identifier (MEP ID);

machine readable logic for storing the MEP ID in a type-length-value (TLV);

machine readable logic for forwarding the TLV over the link state protocol controlled Ethernet network in a link state protocol data unit (LSP).

Assignments (10)