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

Volume

2

fYear

2005

fDate

3-7 July 2005

Firstpage

21

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2005, Proceedings of 2005 7th International Conference

Print_ISBN

0-7803-9236-1

Type

conf

DOI

10.1109/ICTON.2005.1506089

Filename

1506089