Extensions to RSVP-TE for Bi-directional Optical Path Setup
draft-sorrento-rsvp-bi-osp-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
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|---|---|---|---|
| Authors | DAN Guo , Leah Zhang , Dr. James Fu , Raymond W. Cheung | ||
| Last updated | 2000-07-14 | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
We propose an extension to RSVP-TE for setting up and maintaining Bi-directional Optical Switched Paths (BOSPs) in optical networks with symmetric traffic patterns. The requirement for wavelength continuity for some types of optical networks with no (or partial) wavelength conversion is also supported. It follows the framework of MPLS and extends the RSVP-TE to support the signaling for the provisioning of BOSPs. We introduce a new c-types for bi-directional LSPs in both Label Request object and Label object. Each LSR (OXC), upon receiving an RESV message for a BOSP, will allocate a pair of labels. One label is for the incoming port from the next hop and the other is for the incoming port from the previous hop. The labels here include fiber ID, wavelength ID and sub-channel ID (if applicable). This extension requires a minimum change to the existing RSVP-TE protocol. It avoids the problem of contention where two OXCs assign the same wavelength on a uni-directional link for two different sessions. This contention arises in both [4] and [5]. As a result, no additional mechanism for contention resolution is needed.
Authors
DAN Guo
Leah Zhang
Dr. James Fu
Raymond W. Cheung
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)