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Network Working Group T. Dreibholz
Internet-Draft Simula Research Laboratory
Intended status: Experimental M. Becke
Expires: August 13, 2016 HAW Hamburg
H. Adhari
University of Duisburg-Essen
February 10, 2016


SCTP Socket API Extensions for Concurrent Multipath Transfer
draft-dreibholz-tsvwg-sctpsocket-multipath-12.txt

Abstract

This document describes extensions to the SCTP sockets API for
configuring the CMT-SCTP and CMT/RP-SCTP extensions.

Status of This Memo

This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.

Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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This Internet-Draft will expire on August 13, 2016.

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Table of Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Concurrent Multipath Transfer and Resource Pooling
Activation/Deactivation (SCTP_CMT_ON_OFF) . . . . . . . . . . 2
3. Testbed Platform . . . . . . . . . . . . . . . . . . . . . . 3
4. Security Considerations . . . . . . . . . . . . . . . . . . . 3
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 3
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 3
7.1. Normative References . . . . . . . . . . . . . . . . . . 3
7.2. Informative References . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6

1. Introduction

This draft describes extensions to the SCTP sockets API (see
[RFC6458], [RFC4960]) which allow an application to configure the
behaviour of the Concurrent Multipath Transfer (CMT) extensions CMT-
SCTP, CMT/RPv1-SCTP, CMT/RPv2-SCTP and MPTCP-like (see
[I-D.tuexen-tsvwg-sctp-multipath], [Globecom2010], [PAMS2012],
[Dre2012], [PAMS2011], [SoftCOM2011], [ConTEL2011], [AINA2010],
[IAS2006]).

2. Concurrent Multipath Transfer and Resource Pooling Activation/
Deactivation (SCTP_CMT_ON_OFF)

This socket option activates or deactivates CMT and sets the
corresponding Resource Pooling variant to be applied. The
sctp_assoc_value structure is used to specify the association for
which the CMT state should be changed and the new CMT state.

Definition of the sctp_assoc_value structure:

struct sctp_assoc_value {
sctp_assoc_t assoc_id;
uint32_t assoc_value;
};

assoc_id: Holds the identifier for the association of which the CMT
state should be changed. Ignored for one-to-one style sockets.

assoc_value:

0 Turns CMT off.

1 Turns plain CMT-SCTP on. No Resource Pooling is applied.




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2 Turns CMT-SCTP on. CMT/RPv1 Resource Pooling as defined in
[AINA2010] is applied.

3 Turns CMT-SCTP on. CMT/RPv2 Resource Pooling as defined in
[ConTEL2011] is applied.

4 Turns CMT-SCTP on. MPTCP-like Resource Pooling as defined in
[SoftCOM2011], [ConTEL2011], [PAMS2012] is applied.

3. Testbed Platform

A large-scale and realistic Internet testbed platform with support
for the multi-homing feature of the underlying SCTP protocol is
NorNet. A description of NorNet is provided in [PAMS2013-NorNet],
[ComNets2013-Core], some further information can be found on the
project website [NorNet-Website].

4. Security Considerations

Security considerations for the SCTP sockets API are described by
[RFC6458].

5. IANA Considerations

This document does not require IANA actions.

6. Acknowledgments

The authors would like to thank Michael Tuexen for his support.

7. References

7.1. Normative References

[RFC4960] Stewart, R., "Stream Control Transmission Protocol", RFC
4960, September 2007.

[RFC6458] Stewart, R., Tuexen, M., Poon, K., Lei, P., and V.
Yasevich, "Sockets API Extensions for the Stream Control
Transmission Protocol (SCTP)", RFC 6458, December 2011.

[I-D.tuexen-tsvwg-sctp-multipath]
Amer, P., Becke, M., Dreibholz, T., Ekiz, N., Jana, J.,
Natarajan, P., Stewart, R., and M. Tuexen, "Load Sharing
for the Stream Control Transmission Protocol (SCTP)",
draft-tuexen-tsvwg-sctp-multipath-09 (work in progress),
October 2014.




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7.2. Informative References

[Dre2012] Dreibholz, T., "Evaluation and Optimisation of Multi-Path
Transport using the Stream Control Transmission Protocol",
Habilitation Treatise, March 2012,
essen.de/servlets/DerivateServlet/Derivate-29737/
Dre2012_final.pdf>.

[PAMS2012]
Dreibholz, T., Adhari, H., Becke, M., and E. Rathgeb,
"Simulation and Experimental Evaluation of Multipath
Congestion Control Strategies", Proceedings of the 2nd
International Workshop on Protocols and Applications with
Multi-Homing Support (PAMS) ISBN 978-0-7695-4652-0, DOI
10.1109/WAINA.2012.186, March 2012, due.de/fileadmin/fileupload/I-TDR/SCTP/Paper/
PAMS2012.pdf>.

[SoftCOM2011]
Dreibholz, T., Becke, M., Adhari, H., and E. Rathgeb,
"Evaluation of A New Multipath Congestion Control Scheme
using the NetPerfMeter Tool-Chain", Proceedings of the
19th IEEE International Conference on Software,
Telecommunications and Computer Networks (SoftCOM) Pages
1-6, ISBN 978-953-290-027-9, September 2011,
TDR/SCTP/Paper/SoftCOM2011.pdf>.

[PAMS2011]
Adhari, H., Dreibholz, T., Becke, M., Rathgeb, E., and M.
Tuexen, "Evaluation of Concurrent Multipath Transfer over
Dissimilar Paths", Proceedings of the 1st International
Workshop on Protocols and Applications with Multi-Homing
Support (PAMS) Pages 708-714, ISBN 978-0-7695-4338-3, DOI
10.1109/WAINA.2011.92, March 2011, due.de/fileadmin/fileupload/I-TDR/SCTP/Paper/
PAMS2011.pdf>.

[ConTEL2011]
Dreibholz, T., Becke, M., Adhari, H., and E. Rathgeb, "On
the Impact of Congestion Control for Concurrent Multipath
Transfer on the Transport Layer", Proceedings of the 11th
IEEE International Conference on
Telecommunications (ConTEL) Pages 397-404,
ISBN 978-953-184-152-8, June 2011, due.de/fileadmin/fileupload/I-TDR/SCTP/Paper/
ConTEL2011.pdf>.



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[AINA2010]
Dreibholz, T., Becke, M., Pulinthanath, J., and E.
Rathgeb, "Applying TCP-Friendly Congestion Control to
Concurrent Multipath Transfer", Proceedings of the 24th
IEEE International Conference on Advanced Information
Networking and Applications (AINA) Pages 312-319,
ISBN 978-0-7695-4018-4, DOI 10.1109/AINA.2010.117, April
2010, TDR/SCTP/Paper/AINA2010.pdf>.

[Globecom2010]
Dreibholz, T., Becke, M., Rathgeb, E., and M. Tuexen, "On
the Use of Concurrent Multipath Transfer over Asymmetric
Paths", Proceedings of the IEEE Global Communications
Conference (GLOBECOM) ISBN 978-1-4244-5637-6, DOI 10.1109/
GLOCOM.2010.5683579, December 2010, due.de/fileadmin/fileupload/I-TDR/SCTP/Paper/
Globecom2010.pdf>.

[IAS2006] Iyengar, J., Amer, P., and R. Stewart, "Concurrent
Multipath Transfer Using SCTP Multihoming Over Independent
End-to-End Paths", IEEE/ACM Transactions on Networking,
Volume 14, Number 5, Pages 951-964, ISSN 1063-6692, DOI
10.1109/TNET.2006.882843, October 2006,
.

[PAMS2013-NorNet]
Dreibholz, T. and E. Gran, "Design and Implementation of
the NorNet Core Research Testbed for Multi-Homed Systems",
Proceedings of the 3nd International Workshop on Protocols
and Applications with Multi-Homing Support (PAMS) Pages
1094-1100, ISBN 978-0-7695-4952-1, DOI 10.1109/
WAINA.2013.71, March 2013,
publications/threfereedinproceedingsreference.2012-12-20.7
643198512.pdf>.

[ComNets2013-Core]
Gran, E., Dreibholz, T., and A. Kvalbein, "NorNet Core - A
Multi-Homed Research Testbed", Computer Networks, Special
Issue on Future Internet Testbeds Volume 61, Pages 75-87,
ISSN 1389-1286, DOI 10.1016/j.bjp.2013.12.035, March 2014,
publications/Simula.simula.2236.pdf>.







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[NorNet-Website]
Dreibholz, T., "NorNet -- A Real-World, Large-Scale Multi-
Homing Testbed", Online: https://www.nntb.no/, 2016,
.

Authors' Addresses

Thomas Dreibholz
Simula Research Laboratory, Network Systems Group
Martin Linges vei 17
1364 Fornebu, Akershus
Norway

Phone: +47-6782-8200
Fax: +47-6782-8201
Email: dreibh@simula.no
URI: http://www.iem.uni-due.de/~dreibh/


Martin Becke
HAW Hamburg, Informatics Department
Berliner Tor 7
20099 Hamburg, Hamburg
Germany

Phone: +49-40-42875-8104
Fax: +49-40-42875-8309
Email: martin.becke@haw-hamburg.de
URI: http://www.scimbe.de/about.html


Hakim Adhari
University of Duisburg-Essen, Institute for Experimental Mathematics
Ellernstrasse 29
45326 Essen, Nordrhein-Westfalen
Germany

Phone: +49-201-183-7667
Fax: +49-201-183-7673
Email: hakim.adhari@iem.uni-due.de











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