Patent Document ID: 8155028
Application ID: 12049743
Patent Flag: 1

Claim One:
1. An apparatus for configuring logical connectivity for a network comprising a plurality of nodes, comprising: means for determining a physical topology of the network using information indicative of physical connectivity between nodes of the network; means for determining, based on the physical topology of the network, a set of label switched path (LSP) paths comprising, for each pair of nodes in the network, at least two logical paths between the nodes of the node pair; and means for determining, using the set of LSP paths, a set of LSPs comprising a plurality of LSPs adapted for providing full logical connectivity between the nodes of the network; means for determining a new physical topology of the network in response to a physical topology change event; means for modifying the set of LSP paths based on the new physical topology of the network, wherein the set of LSP paths comprises, for each pair of nodes in the network, at least two logical paths between the nodes of the node pair; means for modifying the set of LSPs based on the new physical topology of the network, wherein the set of LSPs is modified in a manner for maintaining full logical connectivity between the nodes of the network.