Abstract
With the automation in optical networks based on the introduction of a control plane (GMPLS, ASON) it will be possible to adapt the transport network dynamically to the traffic requirements of packet based client layers. This allows reducing leased line costs and improving the throughput. In some cases the network throughput limitation comes from the limited switching capacity of transit routers. This is especially the case when Multiservice-network elements are used, which usually are implemented as an extension of SDH network elements with packet switching capabilities. Hereby the packet switching matrix usually only covers a fraction of the whole interface capacity of the node, since the main switching is expected to be carried out in the TDM (SDH) domain. An intelligent Multilayer-Routing-Strategy can relief the packet layer by circumventing packet switching with transport shortcuts. In this paper we present such a new Multilayer-Routing-Strategy, that allows to route demand with a distributed routing mechanism. This is complemented by a centralized optimization instance, that optimizes the overall network status. Simulative investigations allow a first quantification of the advantage of this approach.
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References
R. Prinz, A. Iselt, “Eine Multilayer-Routing Strategie für GMPLS-Netze mit dynamischer Linkressourcenanpassung,” 5. ITG-Fachtagung Photonische Netze, Leipzig, 2004, pp. 53–57.
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© 2005 International Federation for Information Processing
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Prinz, R., Iselt, A. (2005). A Multilayer-Routing-Strategy with Dynamic Link Resource Adaptation. In: Kitayama, KI., Masetti-Placci, F., Prati, G. (eds) Optical Networks and Technologies. IFIP International Federation for Information Processing, vol 164. Springer, Boston, MA. https://doi.org/10.1007/0-387-23178-1_26
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DOI: https://doi.org/10.1007/0-387-23178-1_26
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-387-23177-8
Online ISBN: 978-0-387-23178-5
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