Mechanism for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems
AssigneeAlcatel Lucent
InventorsWilliam McConnochie, Andrew Dolganow
Life of this patent
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Abstract
A mechanism and method for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems, including one or more of the following: specifying working and protection MLPPP bundles; retrieving an endpoint discriminator for the working bundle and updating an endpoint discriminator of the protection bundle based on same; specifying MLPPP operating parameters for the bundles; associating the bundles with an APS circuit; adding links and corresponding discriminators in an LCP between a near end bundle and a far end bundle; bringing up an MLPPP session; and adding links between bundles upon an APS switchover.
Claims20
A method for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems, comprising:
- specifying a working MLPPP bundle;
- specifying a protection MLPPP bundle;
- retrieving an endpoint discriminator for the working bundle;
- updating an endpoint discriminator of the protection bundle based on the retrieved endpoint discriminator for the working bundle;
- specifying MLPPP operating parameters for the working bundle and the protection bundle;
- associating one or more bundles with an APS circuit;
- adding one or more links between a near end bundle and a far end bundle;
- providing one or more discriminators in an LCP for the one or more links added between the near end bundle and the far end bundle;
- bringing up an MLPPP session;
- and
- adding one or more additional links between the near end bundle and the far end bundle upon an APS switchover.
A mechanism for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems, comprising:
- an MLPPP termination node;
- an add-drop multiplexer;
- a working state machine that is active;
- a protection state machine that duplicates the working state machine and is inactive;
- a plurality of communication links between the MLPPP termination node and the add-drop multiplexer;
- a plurality of communication links between the add-drop multiplexer and the working state machine;
- and
- a plurality of communication links between the add-drop multiplexer and the protection state machine, that duplicate the plurality of communication links between the add-drop multiplexer and the working state machine,
- wherein an MLPPP session running through the MLPPP termination node, the add-drop multiplexer, and the working state machine remains operational when an MDA is removed by switching the protection state machine to active.
Dependencies are inferred from the claim text.