Pseudowire Control Word Negotiation Mechanism Update
draft-ietf-pwe3-cbit-negotiation-03
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Active Internet-Draft (pwe3 WG)
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Last updated |
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2012-06-15
(latest revision 2012-04-13)
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draft-jin-pwe3-cbit-negotiation
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IETF
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Intended RFC status |
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Proposed Standard
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plain text
pdf
html
bibtex
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Andrew Malis
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Waiting for AD Go-Ahead
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Consensus Boilerplate |
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Unknown
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Responsible AD |
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Stewart Bryant
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IESG note |
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Andrew Malis (amalis@gmail.com) is the document shepherd.
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Send notices to |
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pwe3-chairs@tools.ietf.org, draft-ietf-pwe3-cbit-negotiation@tools.ietf.org
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Network Working Group Lizhong Jin (ed.), ZTE
Internet-Draft Raymond Key (ed.), Huawei
Updates: 4447 (if approved) Simon Delord, Alcatel-Lucent
Category: Standards Track Thomas Nadeau, Juniper
Expires: October 13, 2012 Vishwas Manral, Hewlett-Packard
Sami Boutros, Cisco
Reshad Rahman, Cisco
April 13, 2012
Pseudowire Control Word Negotiation Mechanism Update
draft-ietf-pwe3-cbit-negotiation-03
Abstract
This document describes the problem of control word negotiation
mechanism specified in [RFC4447]. Based on the problem analysis, a
message exchanging mechanism is introduced to solve this control word
negotiation issue. This document is to update [RFC4447] control word
negotiation mechanism.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
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The list of current Internet-Drafts can be accessed at
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This Internet-Draft will expire on April 13, 2012.
Jin, et al. Expires October 2012 [Page 1]
Internet-Draft draft-ietf-pwe3-cbit-negotiation-03 April 2012
Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (http://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Simplified BSD License text
as described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Problem Statement . . . . . . . . . . . . . . . . . . . . . . . 3
3. Control word re-negotiation by label request message . . . . . . 4
4. Backward Compatibility . . . . . . . . . . . . . . . . . . . . . 6
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 6
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 6
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
8.1. Normative References . . . . . . . . . . . . . . . . . . . . . 6
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 7
Appendix A. Updated C-bit Handling Procedures Diagram . . . . . . . 8
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
Jin, et al. Expires October 2012 [Page 2]
Internet-Draft draft-ietf-pwe3-cbit-negotiation-03 April 2012
1. Introduction
This document describes the problem of control word negotiation
mechanism specified in [RFC4447]. Based on the problem analysis, a
message exchanging mechanism is introduced to solve this negotiation
issue. The control word negotiation mechanism in this document is to
update [RFC4447] section 6.2 "PW Types for Which the Control Word is
NOT Mandatory".
2. Problem Statement
[RFC4447] section 6 describes the control word negotiation mechanism.
Each PW endpoint has the capability of being configurable with a
parameter that specifies whether the use of the control word is
PREFERRED or NOT PREFERRED. While in some case of control word
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