SCTP-Based Transport Mapping Layer (TML) for the Forwarding and Control Element Separation (ForCES) Protocol
RFC 5811
Internet Engineering Task Force (IETF) J. Hadi Salim
Request for Comments: 5811 Mojatatu Networks
Category: Standards Track K. Ogawa
ISSN: 2070-1721 NTT Corporation
March 2010
SCTP-Based Transport Mapping Layer (TML) for the
Forwarding and Control Element Separation (ForCES) Protocol
Abstract
This document defines the SCTP-based TML (Transport Mapping Layer)
for the ForCES (Forwarding and Control Element Separation) protocol.
It explains the rationale for choosing the SCTP (Stream Control
Transmission Protocol) and also describes how this TML addresses all
the requirements required by and the ForCES protocol.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc5811.
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Hadi Salim & Ogawa Standards Track [Page 1]
RFC 5811 ForCES SCTP TML March 2010
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Table of Contents
1. Introduction ....................................................3
2. Definitions .....................................................3
3. Protocol Framework Overview .....................................4
3.1. The PL .....................................................5
3.2. The TML ....................................................5
3.2.1. TML and PL Interfaces ...............................5
3.2.2. TML Parameterization ................................6
4. SCTP TML Overview ...............................................7
4.1. Rationale for Using SCTP for TML ...........................7
4.2. Meeting TML Requirements ...................................8
4.2.1. SCTP TML Channels ...................................9
4.2.2. Satisfying TML Requirements ........................14
5. SCTP TML Channel Work ..........................................16
6. IANA Considerations ............................................16
7. Security Considerations ........................................17
7.1. IPsec Usage ...............................................17
7.1.1. SAD and SPD Setup ..................................18
8. Acknowledgements ...............................................18
9. References .....................................................19
9.1. Normative References ......................................19
9.2. Informative References ....................................20
Appendix A. Suggested SCTP TML Channel Work Implementation .......21
A.1. SCTP TML Channel Initialization ...........................21
A.2. Channel Work Scheduling ...................................21
A.2.1. FE Channel Work Scheduling ............................21
A.2.2. CE Channel Work Scheduling ............................22
A.3. SCTP TML Channel Termination ..............................23
A.4. SCTP TML NE-Level Channel Scheduling ......................23
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