Extensions to OSPF-TE for supporting shared mesh restoration
draft-yagyu-gmpls-shared-restoration-routing-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
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|---|---|---|---|
| Authors | Tomohiko Yagyu , Yoshihiko Suemura , Aleksandar Kolarov | ||
| Last updated | 2002-06-03 | ||
| 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This Internet-Draft is no longer active.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
Shared mesh restoration technique efficiently uses network resources since restoration capacity is shared across multiple independent failures. In this scheme, when a new working LSP is established, its corresponding backup LSP is pre-calculated and resources along the restoration route are reserved. The resources reserved on each link along the restoration path may be shared across different working LSPs that are not expected to fail simultaneously. To make the method for selection of backup LSPs more efficient in terms of utilization of network resources, each link should provide the route calculator with information about its restoration capacity and SRLGs of working LSPs whose backup LSPs share the link restoration capacity. In this document we propose extensions to OSPF-TE in support of carrying link 'Sharable Bandwidth' information.
Authors
Tomohiko Yagyu
Yoshihiko Suemura
Aleksandar Kolarov
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)