@techreport{xu-rsvpte-bidir-wave-01, number = {draft-xu-rsvpte-bidir-wave-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-xu-rsvpte-bidir-wave/01/}, author = {Sugang Xu and Hiroaki Harai and Daniel King}, title = {{Extensions to GMPLS RSVP-TE for Bidirectional Lightpath with the Same Wavelength}}, pagetotal = 12, year = 2007, month = nov, day = 12, abstract = {For bidirectional lightpaths provisioning, in the case of optical nodes that do not support wavelength conversion, it would be necessary to use the same wavelength along the route on each direction. In certain optical network scenarios, the use of the same wavelength on both directions would be advantageous. For instance, some ROADMs may add/drop the same wavelength simultaneously. In other cases, the users' optical end nodes are equipped with fixed-wavelength transponders. This document describes extensions to RSVP-TE signaling for bidirectional wavelength lightpaths that require the same wavelength on both directions. By using an LSP\_ATTRIBUTES object defined in {[}RFC4420{]}, the extensions enable the new type lightpaths to support the low cost configuration at users' optical end nodes.}, }