TY - GEN
T1 - Scalable shared-risk group management in shared mesh restorable wavelength routed networks
AU - Shiomoto, K.
AU - Imajuku, W.
AU - Oki, E.
AU - Okamoto, S.
AU - Yamanaka, N.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - The paper proposes a scaleable SRG-based restoration method in shared mesh wavelength-routed networks. We introduce a backup-SRG concept to identify which SRG is backed up by individual links. We have developed an admission control method for the backup path using the backup-SRG concept to achieve 100% recovery performance. The proposed method is extended to support networks with a large number of SRGs by introducing a hierarchical SRG assignment technique. Through computer simulation on the NSF network model, we confirmed that the proposed method achieves 100% recovery performance assuming a single link failure at the expense of 28.6% extra wavelength resource compared to the non-backup method. The proposed method requires less than 56.3% wavelength resource than that of the protection scheme while keeping 100% recovery performance. The hierarchical SRG assignment technique reduces the number of backup-SRGs to be used in admission control at each node at the expense of very little throughput degradation.
AB - The paper proposes a scaleable SRG-based restoration method in shared mesh wavelength-routed networks. We introduce a backup-SRG concept to identify which SRG is backed up by individual links. We have developed an admission control method for the backup path using the backup-SRG concept to achieve 100% recovery performance. The proposed method is extended to support networks with a large number of SRGs by introducing a hierarchical SRG assignment technique. Through computer simulation on the NSF network model, we confirmed that the proposed method achieves 100% recovery performance assuming a single link failure at the expense of 28.6% extra wavelength resource compared to the non-backup method. The proposed method requires less than 56.3% wavelength resource than that of the protection scheme while keeping 100% recovery performance. The hierarchical SRG assignment technique reduces the number of backup-SRGs to be used in admission control at each node at the expense of very little throughput degradation.
UR - http://www.scopus.com/inward/record.url?scp=1642381644&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1642381644&partnerID=8YFLogxK
U2 - 10.1109/HPSR.2003.1226703
DO - 10.1109/HPSR.2003.1226703
M3 - Conference contribution
AN - SCOPUS:1642381644
SN - 0780377109
SN - 9780780377103
T3 - IEEE International Conference on High Performance Switching and Routing, HPSR
SP - 189
EP - 194
BT - HPSR 2003 - 2003 Workshop on High Performance Switching and Routing
PB - IEEE Computer Society
T2 - 2003 Workshop on High Performance Switching and Routing, HPSR 2003
Y2 - 24 June 2003 through 27 June 2003
ER -