July 2001
Vol. 15 No. 4
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 | IP-Optical Integration |
| Debanjan Saha and Nasir Ghani |
Framing Techniques for IP over Fiber
Paul Bonenfant and Antonio Rodriguez-Moral, Photuris, Inc.
The authors provide a high-level but extensive overview of the protocols and framing techniques for mapping IP packets over fiber in metropolitan, regional, and wide area fiber optic networks.Framework for MPLS-Based Control of Optical SDH/SONET Networks
Greg Bernstein, Ciena Corporation
Eric Mannie, Ebone
Vishal Sharma, Metanoia, Inc.
The suite of protocols that defines Multi-Protocol Label Switching is in the process of enhancement to generalize its applicability to the control of optical networks. One area of prime consideration is to use these generalized MPLS protocols in upgrading the control plane of optical transport networks.Lightpath Routing for Intelligent Optical Networks
Zhensheng Zhang and James Fu, Sorrento Networks
Dan Guo, Turin Networks, Inc.
Leah Zhang, Photuris, Inc.
The authors present an overview of current issues and challenges in lightpath routing for optical networks. An architecture is described in which optical switches are deployed, usually in the core, to interconnect IP routers at the edges. Lightpath routing within this architecture follows the framework of generalized multiprotocol label switching.Optical Networking and Real-Time Provisioning: An Integrated Vision for the Next-Generation Internet
Chadi Assi, Abdallah Shami, and Mohamed A. Ali, City College of the City University of New York
Russ Kurtz, REALTECH Systems Corporation
Dan Guo, Turin Networks, Inc.
The authors consider the problem of real-time provisioning of optical channels in hybrid IP-centric DWDM-based networks. They also present an overview of the emerging architectural alternatives for IP over optical networks, namely, the overlay, the peer, and the augmented models.From Network Design to Dynamic Provisioning and Restoration in Optical Cross-Connect Mesh Networks: An Architectural and Algorithmic Overview
Sudipta Sengupta and Ramu Ramamurthy, Tellium, Inc.
This article presents a broad overview of the architectural and algorithmic aspects involved in deploying an optical cross-connect mesh network, starting from the network design and capacity planning phase to the real-time network operation phase involving dynamic provisioning and restoration of lightpaths and online algorithms for route computation.A Perspective on Photonic Multiprotocol Label Switching
Masayuki Murata and Ken-ichi Kitayama, Osaka University
The authors consider various MPLS-based IP over WDM integration techniques. In particular, they examine the recent circuit-switching MPS framework for providing logical IP-layer topologies over optical lightpath routing networks.