Signaling Standby State of Pseudowire Groups in H-VPLS
draft-pdutta-l2vpn-hvpls-standby-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Author | Pranjal Dutta | ||
| Last updated | 2006-10-17 | ||
| 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This Internet-Draft is no longer active.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
H-VPLS is an architecture that follows hub-and-spoke connectivity model among VPLS aware devices and is proposed in [VPLS-LDP] for creating scalable VPLS implementations. To protect from failure of the spoke PW or the failure of host PE-rs, MTU-s may be dual homed to two PE-rs devices for a VPLS instance through primary spoke PW and secondary(standby) spoke PW. The respective PE-rs devices(s) are unaware of the primary or secondary status of spoke PWs. So Broadcast, Unlearned unicast and Multicast (BUM) traffic received from full mesh core by a PE-rs is replicated to MTU-s over secondary spoke PW to get dropped at MTU-s. In such scenerios it may be desirable to block the standby spoke PW at PE-rs end with minimal compromise on traffic disruption when MTU-s performs a switchover to secondary spoke PW. This document proposes an extension to PW status TLV defined in [RFC 4447] to signal Standby or Active state of PW by MTU-s to PE-rs in a scalable manner.
Authors
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