Patent ID: 9667550
Date: 2017-05-30
CPC Classifications: H04L

Claim:
1. A method comprising: receiving, with a network device from an area border router logically located within a second routing protocol domain, a routing protocol advertisement for an exterior gateway routing protocol; decoding traffic engineering information for a traffic engineering link from the routing protocol advertisement, wherein the decoded traffic engineering information includes at least one router identifier for an anchor node of the traffic engineering link; determining, by the network device, a first traffic engineered path for a label-switched path (LSP) from a source router logically located within the first routing protocol domain to a destination router logically located within the second routing protocol domain; determining, by the network device, a second traffic engineered path for a bypass LSP for the LSP by selecting, in response to determining that at least one router identifier for the anchor node of the traffic engineering link is an area border router for the first routing protocol domain, the traffic engineering link for inclusion in the second traffic engineered path based on the decoded traffic engineering information; and establishing, by the network device, the LSP along the first traffic engineered path and the bypass LSP along the second traffic engineered path.