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3 - The optical control plane and a novel unified control plane architecture for IP/WDM networks

from Part I - Enabling technologies

Published online by Cambridge University Press:  05 October 2012

By
Georgios Ellinas ,
Antonis Hadjiantonis ,
Ahmad Khalil ,
Neophytos Antoniades  and
Mohamed A. Ali
Edited by
Byrav Ramamurthy ,
George N. Rouskas  and
Krishna Moorthy Sivalingam
Georgios Ellinas
Affiliation:
University of Cyprus, Cyprus
Antonis Hadjiantonis
Affiliation:
University of Nicosia, Cyprus
Ahmad Khalil
Affiliation:
City University of New York, USA
Neophytos Antoniades
Affiliation:
City University of New York, USA
Mohamed A. Ali
Affiliation:
City University of New York, USA
Byrav Ramamurthy
Affiliation:
University of Nebraska, Lincoln
George N. Rouskas
Affiliation:
North Carolina State University
Krishna Moorthy Sivalingam
Affiliation:
Indian Institute of Technology, Madras
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Summary

An effective optical control plane is crucial in the design and deployment of a transport network as it provides the means for intelligently provisioning, restoring, and managing network resources, leading in turn to their more efficient use. This chapter provides an overview of current protocols utilized for the control plane in optical networks and then delves into a new unified control plane architecture for IP-over-WDM networks that manages both routers and optical switches. Provisioning, routing, and signaling protocols for this control model are also presented, together with its benefits, including the support of interdomain routing/signaling and the support of restoration at any granularity.

Introduction

In the last two decades optical communications have evolved from not only providing transmission capacities to higher transport levels, such as inter-router connectivity in an IP-centric infrastructure, to providing the intelligence required for efficient point-and-click provisioning services, as well as resilience against potential fiber or node failures. This is possible due to the emergence of optical network elements that carry the intelligence required to efficiently manage such networks. Current deployments of wavelength division multiplexed (WDM)-based optical transport networks have met the challenge of accommodating the phenomenal growth of IP data traffic while providing novel services such as rapid provisioning and restoration of very high bandwidth circuits, and bandwidth on demand.

Type
Chapter
Information
Next-Generation Internet
Architectures and Protocols
 , pp. 42 - 71
Publisher: Cambridge University Press
Print publication year: 2011

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