Title :
Establishing source-routed bidirectional connections over the unidirectional ASON/GMPLS carisma testbed
Author :
Escalona, Eduard ; Spadaro, Salvatore ; Comellas, Jaume ; Junyent, Gabriel
Author_Institution :
Opt. Commun. Group, Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
The multiprotocol label switching (MPLS) standard defined by the Internet Engineering Task Force do not consider bidirectionality. In effect, to have bidirectionality two different label switched paths (LSP) have to be established. On the contrary, the generalized multiprotocol label switching (GMPLS) paradigm, by introducing a new object to the signalling protocol, supports bidirectionality. However it does not rely to unidirectional optical connections over unidirectional optical rings. This paper describes two solutions implemented in the ASON/GMPLS CARISMA network, and some experimental results regarding the establishment of soft-permanent connections are presented and discussed.
Keywords :
multiprotocol label switching; optical fibre networks; signalling protocols; telecommunication network routing; GMPLS Carisma testbed; automatically switched optical network; generalized multiprotocol label switching; signalling protocol; source-routed bidirectional; unidirectional ASON; Contracts; Multiprotocol label switching; Network interfaces; Optical add-drop multiplexers; Optical control; Optical fiber communication; Optical fiber networks; Protocols; Testing; Wavelength division multiplexing;
Conference_Titel :
Transparent Optical Networks, 2005, Proceedings of 2005 7th International Conference
Print_ISBN :
0-7803-9236-1
DOI :
10.1109/ICTON.2005.1506089
