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ConSet: Hierarchical Concurrent Path Setup Scheme in Multi-Layer GMPLS Networks
Eiji OKI Daisaku SHIMAZAKI Kohei SHIOMOTO Naoaki YAMANAKA
IEICE TRANSACTIONS on Communications
Publication Date: 2004/10/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
GMPLS, signaling, RSVP, multi layer,
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This letter proposes a hierarchical label-switched path (LSP) setup scheme, called ConSet, for multi-layer generalized multi-protocol label switching (GMPLS) networks. ConSet allows a Path message to be transmitted to the downstream neighbor node without waiting for the establishment of the higher-order LSP. Confirmation of the establishment of the higher-order LSP is performed at the ingress node of the higher-order LSP before a Resv message of the lower-order LSP is transmitted to the upstream neighbor node. ConSet is able to set up hierarchical LSPs faster than the sequential scheme.