Item – Theses Canada

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OCLC number
701243244
Author
He, Peng,1970-
Title
Protection and routing over Agile All-Photonic Networks (AAPN).
Degree
Ph. D. -- University of Ottawa, 2008
Publisher
Ottawa : Library and Archives Canada = Bibliothèque et Archives Canada, [2009]
Description
2 microfiches
Notes
Includes bibliographical references.
Abstract
The term "agility" in optical networks describes the ability to deploy bandwidth on demand at fine granularity that allows carriers to deploy services rapidly. An overlaid-star all-photonic WDM network, called the Agile All-Photonic Network (AAPN), can provide such agility through multiplexing over each wavelength in the time domain. The AAPN consists of a number of hybrid photonic/electronic edge nodes connected together via several load-balancing bufferless transparent core nodes and optical fibers to form an overlaid star topology. An AAPN can potentially provide an efficient high bandwidth/high performance core transport network for carriers. Hence, it is very important to design and position AAPN to support widely-deployed IP/MPLS architecture and protocols. This thesis deals with routing and protection of MPLS flows over AAPNs, especially in multi-domain (OSPF multi-area or inter-AS) network environments. For the routing problem, several AAPN configurations seen by the Internet routers are proposed to solve the scalability issue when deploying AAPN within one IP/MPLS network. Furthermore, a novel inter-area routing framework is proposed which can provide dynamic and optimal inter-area routing in an efficient and scalable way with full backward compatibility with existing OSPF routers. In addition, an AAPN-based Internet Exchange (AIX) architecture with traffic engineering capacity is also developed to provide inter-AS optimal routing. For the protection problem, instead of using link or path protection, an inter-area shared segment protection approach is proposed, which can take advantage of the above inter-area routing framework. Through sharing, the network resources are used in an efficient way. Through segment-based protection, the recovery time is reduced in case of failures. By generalizing and extending this AAPN-based routing and protection framework, a general inter-domain (AS or area) traffic engineering architecture, called Star-TE, is proposed. Star-TE satisfies the requirements for inter-area and inter-AS traffic engineering defined by IETF in RFC 4105 and RFC 4216.
ISBN
9780494483985
0494483989