Patent ID: 8848518
Filing Date: 2014-09-30
Classification: H04L

Abstract:
1. A method comprising: detecting a change in condition of a primary label switched path connecting a first node and second node; generating a notification message for transmission to the first node; generating at the first node, in response to the notification message, an assessment message for transmission to the second node along the primary label switched path; determining whether to perform, at the first node, an admission control, a performance monitoring at shorter time intervals, or a combination thereof, based on a response to the assessment message; assessing a performance of the primary label switched path; and determining, based on the performance, whether to continue utilizing the primary label switched path or to activate a secondary label switched path associated with the primary label switched path, wherein the notification message specifies information related to the detected change according to a predetermined format that can be processed by a source node of the primary label switched path.