Patent ID: 8040792
Filing Date: 2011-10-18
Classification: H04L

Abstract:
1. A method of facilitating creation of a local repair connection for a first connection, the first connection traversing a first path comprising a plurality of nodes, the method comprising: determining, by a network device, whether a second path can be established from a first node in the first path to a next-next-hop node to the first node in the first path, where the second path does not include a next-hop node to the first node in the first path and a next-hop link to the first node in the first path; upon determining that the second path cannot be established, determining, by the network device, whether a third path can be established from the first node to the next-hop node to the first node in the first path, where the third path does not include the next-hop link to the first node in the first path; and upon determining that the third path cannot be established, determining, by the network device, a fourth path from the first node to a second node in the first path, where the second node is downstream from the next-next-hop node to the first node in the first path, wherein data is communicated via the first connection using Multi-Protocol Label Switching (MPLS) protocol and the first connection is a label switched path (LSP).