IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference 2007
DOI: 10.1109/glocom.2007.432
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Signalling-Based Architectures for Impairment-Aware Lightpath Set-Up in GMPLS Networks

Abstract: This paper explores the solution space for extending the signaling protocol of a GMPLS control plane for an impairment-aware path setup in transparent optical networks. Four combinations of routing and optical feasibility checking architectures based on modifications of RSVP-TE are proposed and studied. Simulation results show that a combination of hopby-hop routing and feasibility check can be considered as a good compromise both in term of blocking probability and limited impact on the Control Plane. The sli… Show more

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Cited by 16 publications
(6 citation statements)
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“…The standard GMPLS signaling protocol such as RSVP-TE also needs to be extended for dynamic data collection as in signaling-based OCP. Based on this architecture, k-parallel signaling [8] can also be implemented for better performance.…”
Section: Hybrid Ocpmentioning
confidence: 99%
See 2 more Smart Citations
“…The standard GMPLS signaling protocol such as RSVP-TE also needs to be extended for dynamic data collection as in signaling-based OCP. Based on this architecture, k-parallel signaling [8] can also be implemented for better performance.…”
Section: Hybrid Ocpmentioning
confidence: 99%
“…Then the calculated routes are passed to the RSVP-TE extension module, and parallel transmitted by k Path messages [8]. In the forward direction, every traversed node updates the collected data by adding its own dynamic parameters and resource states to the corresponding RSVP objects before propagating the Path message.…”
Section: Hybrid Ocpmentioning
confidence: 99%
See 1 more Smart Citation
“…However, despite the fact that CP solutions and particularly GMPLS are quite mature standards, it happens that until recently they lacked the intelligence to support dynamic impairment-aware core networks [3], which were addressed by the European DICONET project [4]. DICONET proposed and developed a comprehensive multi-level solution based on novel cross-layer techniques for single line-rate networks.…”
Section: Introductionmentioning
confidence: 99%
“…A possible solution to this problem is presented in Salvadori et al (2007b) where, rather than trying to establish the path using a set of computed K-routes in a sequential manner, a Path message is sent along all the computed K-routes in parallel to try to establish a path with an acceptable signal quality, although in this case, there will be a higher signalling control overhead for each connection request. Another variant of this approach is also proposed in (Salvadori et al 2007b) where the route is computed on a hop-by-hop basis so that each node only considers information related to its directly connected links. On the positive side, this approach requires minimal changes to RSVP-TE and no changes at all to OSPF-TE (Cugini et al 2005).…”
Section: Centralised Approachmentioning
confidence: 99%