Bandwidth Modification and impact on GMPLS UNI Signalling

This document analyzes whether the Link Capacity Adjustment Scheme (LCAS) will affect the TDM level GMPLS signalling at the UNI (as specified in UNI 1.0). LCAS defines a method to modify the bandwidth of an existing LSP. If LCAS is used for this purpose, the impact on GMPLS is not negligible. Alternatively, mechanisms similar to LCAS could be implemented into GMPLS, but there would be impact on other signalling mechanisms. This document analyzes situations that could initiate a change in LSP bandwidth and discusses alternative approaches for GMPLS. Notice: This contribution has been created to assist the Optical Internetworking Forum (OIF). This document is offered to the OIF solely as a basis for discussion and is not a binding proposal on the companies listed as resources above. Each company in the source list, and the OIF, reserves the rights to at any time to add, amend, or withdraw statements contained herein. This Working Text represents work in progress by the OIF, and must not be construed as an official OIF Technical Report. Nothing in this document is in any way binding on the OIF or any of its members. The document is offered as a basis for discussion and communication, both within and without the OIF. For additional information contact: The Optical Internetworking Forum, 39355 California Street, Suite 307, Fremont, CA 94538 510-608-5990 phone ✦ [email protected] © 2001 Optical Internetworking Forum 2 Bandwidth Modification and impact on GMPLS UNI Signalling