Patent ID: 9013985
Filing Date: 2015-04-21
Classification: H04L

Abstract:
1. A method, comprising: sending, by an originating label switched path (LSP) packet switching device, a particular label switched packet to a destination LSP packet switching device over a primary bidirectional LSP, wherein the primary bidirectional LSP is established between the originating LSP packet switching device and the destination LSP packet switching device through an intermediate packet switching device; receiving, by the intermediate packet switching device, the particular label switched packet; sending, from the intermediate packet switching device, the particular label switched packet towards the originating LSP packet switching device over the primary bidirectional LSP in response to an error condition identified as affecting the primary bidirectional LSP towards the destination LSP packet switching device; receiving, by the originating LSP packet switching device, the particular label switched packet said sent from the intermediate packet switching device; and sending, by the originating LSP packet switching device, the particular label switched packet to the destination packet switching device over a backup LSP.