Abstract

We study the provisioning of virtual private network (VPN) service over WDM optical networks. For this purpose, we investigate the blocking performance of the hose model versus the pipe model for the provisioning. Two techniques are presented: an analytical queuing model and a discrete event simulation. The queuing model is developed from the multirate reduced-load approximation technique. The simulation is done with the OPNET simulator. Several experimental situations were used. The blocking probabilities calculated from the two approaches show a close match, indicating that the multirate reduced-load approximation technique is capable of predicting the blocking performance for the pipe model and the hose model in WDM networks. A comparison of the blocking behavior of the two models shows that the hose model has superior blocking performance as compared with pipe model. By and large, the blocking probability of the hose model is better than that of the pipe model by a few orders of magnitude, particularly at low load regions. The flexibility of the hose model allowing for the sharing of resources on a link among all connections accounts for its superior performance.

© 2003 Optical Society of America

Reliable Multi-Bit-Rate VPN Provisioning for Multipoint Carrier-Grade Ethernet Services Over Mixed-Line-Rate WDM Optical Networks

Marwan Batayneh, Dominic Schupke, Marco Hoffmann, Andreas Kirstaedter, and Biswanath Mukherjee
J. Opt. Commun. Netw. 3(1) 66-76 (2011)

Hose-model network virtualization in flexgrid optical networks

Fengqing Liu and Weiguang He
J. Opt. Commun. Netw. 12(3) 13-23 (2020)

Analytical Blocking Model for Anycast RWA in Optical WDM Networks

Yan Cui and Vinod M. Vokkarane
J. Opt. Commun. Netw. 8(10) 787-799 (2016)

Integrated Provisioning of Sliding Scheduled Services Over WDM Optical Networks [Invited]

Dragos Andrei, Hong-Hsu Yen, Massimo Tornatore, Charles U. Martel, and Biswanath Mukherjee
J. Opt. Commun. Netw. 1(2) A94-A105 (2009)

Service Differentiated Provisioning in Dynamic WDM Networks Based on Set-Up Delay Tolerance

Ajmal Muhammad, Cicek Cavdar, Lena Wosinska, and Robert Forchheimer
J. Opt. Commun. Netw. 5(11) 1250-1261 (2013)