Transport Area Working Group J. Saldana
Internet-Draft University of Zaragoza
Obsoletes: 4170 (if approved) D. Wing
Intended status: BCP Cisco Systems
Expires: July 13, 2013 J. Fernandez Navajas
University of Zaragoza
Muthu A M. Perumal
Cisco Systems
F. Pascual Blanco
Telefonica I+D
January 9, 2013
Tunneling Compressed Multiplexed Traffic Flows (TCMTF)
draft-saldana-tsvwg-tcmtf-04
Abstract
This document describes a method to improve the bandwidth utilization
of network paths that carry multiple streams in parallel sharing a
common path. The method combines standard protocols that provide
compression, multiplexing, and tunneling over a network path for the
purpose of reducing the bandwidth used when multiple streams are
carried over that path.
Status of this Memo
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This Internet-Draft will expire on July 13, 2013.
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Copyright (c) 2013 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
Saldana, et al. Expires July 13, 2013 [Page 1]
Internet-Draft TCMTF January 2013
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
1.2. Bandwidth efficiency of real-time flows . . . . . . . . . 3
1.3. Real-time applications not using RTP . . . . . . . . . . . 4
1.4. Scenarios of application . . . . . . . . . . . . . . . . . 5
1.5. Objective of this standard . . . . . . . . . . . . . . . . 6
1.6. Current Standard . . . . . . . . . . . . . . . . . . . . . 6
1.7. Improved Standard Proposal . . . . . . . . . . . . . . . . 7
2. Protocol Operation . . . . . . . . . . . . . . . . . . . . . . 9
2.1. Models of implementation . . . . . . . . . . . . . . . . . 9
2.2. Choice of the compressing protocol . . . . . . . . . . . . 10
2.2.1. Context Synchronization in ECRTP . . . . . . . . . . . 11
2.2.2. Context Synchronization in ROHC . . . . . . . . . . . 11
2.3. Multiplexing . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.1. Tunneling Inefficiencies . . . . . . . . . . . . . . . 12
2.4. Tunneling . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.1. Tunneling schemes over IP: L2TP and GRE . . . . . . . 12
2.4.2. MPLS tunneling . . . . . . . . . . . . . . . . . . . . 12
2.5. Encapsulation Formats . . . . . . . . . . . . . . . . . . 13
3. Contributing Authors . . . . . . . . . . . . . . . . . . . . . 14
4. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 16
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
6. Security Considerations . . . . . . . . . . . . . . . . . . . 16
7. References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.1. Normative References . . . . . . . . . . . . . . . . . . . 16
7.2. Informative References . . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 17
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