Cart (Loading....) | Create Account
Close category search window
 

Lightpath bundling and anycast switching: a new paradigm for multilayer optical networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Pavon-Marino, P. ; Univ. Politec. de Cartagena, Cartagena, Spain ; Izquierdo-Zaragoza, J.

In IP over WDM multilayer optical networks, IP routers are interconnected by all-optical channels called lightpaths, of typical rates of 10, 40, or, more recently, 100 Gb/s. In this context, lightpath bundling (LB) and anycast switching (AS) are control plane and data plane techniques, respectively, both of them to be implemented in the IP routers. LB permits grouping a set of lightpaths between two nodes that follow a common route so that they are perceived by the IP layer as a single virtual link of aggregated capacity. In its turn, AS consists of instructing the router to implement a per-packet-granularity balancing of the traffic among the lightpaths in the bundle, reducing the packet delay and the buffering requirements in the node. This happens transparently to the IP layer, which, because of the LB configuration, sees the bundled lightpaths as a single entity. In this article, we propose the combined application of the LB and AS techniques as a new paradigm (LB+AS) for optical networks. Applying the LB+AS concept requires seamless changes in the electronic equipment and no changes in the optical infrastructure. We present a case study that shows the significant performance and cost benefits LB+AS can bring to the network and its inherent scalability. In addition, we discuss other potential advantages of LB+AS and related open research lines.

Published in:

Communications Magazine, IEEE  (Volume:50 ,  Issue: 8 )

Date of Publication:

August 2012

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.