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US 8,274,989 B1Granted
Point-to-multipoint (P2MP) resilience for GMPLS control of ethernet
AssigneeRockstar Bidco, LP
InventorsDavid Allan, Nigel Bragg
Life of this patent
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AssigneeRockstar Bidco, LP
InventorsDavid Allan, Nigel Bragg
Estimating the term…
In an Ethernet network multiple point-to-multipoint (P2MP) trees are constructed to provide a P2MP service. Each tree provides service from a common root node to common leaves via different paths through the network. GMPLS signaling is utilized for configuring and maintaining the P2MP trees at each of the nodes in the network forming the respective tree. Each tree is constructed using a unique VID/MAC combination wherein the VID is unique to the tree and the MAC is associated with the multicast group identifying the P2MP membership. Traffic is forwarded through the network by the designated tree(s) by the VID/MAC DA combination by the common root node. The varying paths of each tree improves fault tolerance and enables redundancy and protection switching to be provided. Each tree of the service can be modified or repaired while traffic is still being routed through the remaining working tree(s), thus service impact is minimized.
A method of operating a resilient point-to-multipoint (P2MP) service in an Ethernet network, the method comprising the steps of:
A root node in an Ethernet network, the root node configured for resilient point-to-multipoint (P2MP) service, the node comprising:
A method for resilient point-to-multipoint (P2MP) connectivity in an Ethernet network, the method comprising steps of:
Dependencies are inferred from the claim text.