Performance Analysis of Soft-State Lightpath Management in GMPLS-Based WDM Networks

Abstract

In this paper, we analyze the behavior of GMPLS RSVP-TE and its variants with a Markov model and analyze the performance of RSVP-TE. From the results, we demonstrate that resource utilization of RSVP-TE can be equivalent to that of a hard-state protocol when the loss probability of signaling messages is low. We also investigate the effectiveness of message retransmission and show that using message retransmission leads to poor resource utilization in some cases.