Patent ID: 8238229
Filing Date: 2012-08-07
Classification: H04L

Abstract:
1. A multi-protocol label switching router, comprising: a message reception unit, configured to receive a message including a colored thread rewinding message and a colored thread withdrawal message from a node; a message transmission unit, configured to transmit the message including the colored thread rewinding message and the colored thread withdrawal message to another node; and a judging unit, configured to judge, after the message reception unit receives the colored thread rewinding message before receiving the colored thread withdrawal message from a downstream neighbor node, whether an upstream interface of the colored thread is in a stalled status and notify the message transmission unit to continue to distribute the colored thread rewinding message and transmit a label mapping via the upstream interface of the colored thread if the upstream interface of the colored thread is not in a stalled status; and notify the message transmission unit to prohibit distribution of the colored thread rewinding message via the upstream interface of the colored thread if the upstream interface of the colored thread is in the stalled status.