Multi-area traffic engineering using branched LSP setup
Alcatel
This document proposes an alternative approach to inter-area traffic engineering and path setup. It recognizes the potential issues with current proposals and presents a different approach based on concurrently sending path setup messages. The approach allows for fast, efficient path setup across multiple areas without crankback or flooding. It does so without introducing a new protocol or changing the IGP and requires only minimal extensions of the current signaling protocols.