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A QoS-Based Optical Networking

  • Admela Jukan
Chapter
Part of the Progress in Communication Networks book series (PROGRCOMM, volume 1)

Abstract

This chapter is dedicated to an overview of the existing network and node architectures for wavelength routing necessary to understand the novel, QoS-based approaches that will be taken. Obviously, a broad area of different issues for control, network architecture, resource allocation, and policies can be associated with QoS-based routing. However, rather than addressing single architectural aspects, we will try to justify the necessity for QoS-based consideration of network performance, which is expected to enter the networking market in the short term as a natural progressive step for wavelength-routed networks. Therefore, before going into the basics of optical node and optical network architectures (a subject so far treated by a number of excellent books, scientific papers and experimental trials), a few important introductory words will be dedicated to the notion of QoS, a feature that is still missing in the existing works on wavelength routing.

Keywords

Optical Network Wavelength Division Multiplex Asynchronous Transfer Mode Wavelength Converter Wavelength Division Multiplex Network 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Notes

  1. 1.
    There is commonly a distinction made in vocabulary that differentiates between cross-connection, switching, and routing [Thy96]. The first is used when the connection pattern is semi-permanent and the set-up is done by the network operator. Switching is based on connection set up by user signalling, and routing is connectionless switching of datagrams (a datagram is a packet routed independently of other packets from the same source). For example, SDH uses cross-connects, ATM uses both switches and cross-connects, and the Internet Protocol (IP) uses routers.Google Scholar
  2. 2.
    Office stands here for SDH equipment for aggregation of the traffic demand to the optical nodes.Google Scholar
  3. 3.
    Special office is supported by restoration and protection functions.Google Scholar

Copyright information

© Springer-Verlag Wien 2001

Authors and Affiliations

  • Admela Jukan
    • 1
  1. 1.Institute of Communication NetworksVienna University of TechnologyViennaAustria

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