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Checking references for intended status: Experimental ---------------------------------------------------------------------------- ** Obsolete normative reference: RFC 4960 (Obsoleted by RFC 9260) == Outdated reference: A later version (-27) exists of draft-tuexen-tsvwg-sctp-multipath-12 Summary: 1 error (**), 0 flaws (~~), 2 warnings (==), 1 comment (--). Run idnits with the --verbose option for more detailed information about the items above. -------------------------------------------------------------------------------- 2 Network Working Group T. Dreibholz 3 Internet-Draft Simula Research Laboratory 4 Intended status: Experimental M. Becke 5 Expires: January 19, 2017 HAW Hamburg 6 H. Adhari 7 University of Duisburg-Essen 8 July 18, 2016 10 SCTP Socket API Extensions for Concurrent Multipath Transfer 11 draft-dreibholz-tsvwg-sctpsocket-multipath-13.txt 13 Abstract 15 This document describes extensions to the SCTP sockets API for 16 configuring the CMT-SCTP and CMT/RP-SCTP extensions. 18 Status of This Memo 20 This Internet-Draft is submitted in full conformance with the 21 provisions of BCP 78 and BCP 79. 23 Internet-Drafts are working documents of the Internet Engineering 24 Task Force (IETF). Note that other groups may also distribute 25 working documents as Internet-Drafts. The list of current Internet- 26 Drafts is at http://datatracker.ietf.org/drafts/current/. 28 Internet-Drafts are draft documents valid for a maximum of six months 29 and may be updated, replaced, or obsoleted by other documents at any 30 time. It is inappropriate to use Internet-Drafts as reference 31 material or to cite them other than as "work in progress." 33 This Internet-Draft will expire on January 19, 2017. 35 Copyright Notice 37 Copyright (c) 2016 IETF Trust and the persons identified as the 38 document authors. All rights reserved. 40 This document is subject to BCP 78 and the IETF Trust's Legal 41 Provisions Relating to IETF Documents 42 (http://trustee.ietf.org/license-info) in effect on the date of 43 publication of this document. Please review these documents 44 carefully, as they describe your rights and restrictions with respect 45 to this document. Code Components extracted from this document must 46 include Simplified BSD License text as described in Section 4.e of 47 the Trust Legal Provisions and are provided without warranty as 48 described in the Simplified BSD License. 50 Table of Contents 52 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 53 2. Concurrent Multipath Transfer and Resource Pooling 54 Activation/Deactivation (SCTP_CMT_ON_OFF) . . . . . . . . . . 2 55 3. Testbed Platform . . . . . . . . . . . . . . . . . . . . . . 3 56 4. Security Considerations . . . . . . . . . . . . . . . . . . . 3 57 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3 58 6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 3 59 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 3 60 7.1. Normative References . . . . . . . . . . . . . . . . . . 3 61 7.2. Informative References . . . . . . . . . . . . . . . . . 4 62 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6 64 1. Introduction 66 This draft describes extensions to the SCTP sockets API (see 67 [RFC6458], [RFC4960]) which allow an application to configure the 68 behaviour of the Concurrent Multipath Transfer (CMT) extensions CMT- 69 SCTP, CMT/RPv1-SCTP, CMT/RPv2-SCTP and MPTCP-like (see 70 [I-D.tuexen-tsvwg-sctp-multipath], [Globecom2010], [PAMS2012], 71 [Dre2012], [PAMS2011], [SoftCOM2011], [ConTEL2011], [AINA2010], 72 [IAS2006]). 74 2. Concurrent Multipath Transfer and Resource Pooling Activation/ 75 Deactivation (SCTP_CMT_ON_OFF) 77 This socket option activates or deactivates CMT and sets the 78 corresponding Resource Pooling variant to be applied. The 79 sctp_assoc_value structure is used to specify the association for 80 which the CMT state should be changed and the new CMT state. 82 Definition of the sctp_assoc_value structure: 84 struct sctp_assoc_value { 85 sctp_assoc_t assoc_id; 86 uint32_t assoc_value; 87 }; 89 assoc_id: Holds the identifier for the association of which the CMT 90 state should be changed. Ignored for one-to-one style sockets. 92 assoc_value: 94 0 Turns CMT off. 96 1 Turns plain CMT-SCTP on. No Resource Pooling is applied. 98 2 Turns CMT-SCTP on. CMT/RPv1 Resource Pooling as defined in 99 [AINA2010] is applied. 101 3 Turns CMT-SCTP on. CMT/RPv2 Resource Pooling as defined in 102 [ConTEL2011] is applied. 104 4 Turns CMT-SCTP on. MPTCP-like Resource Pooling as defined in 105 [SoftCOM2011], [ConTEL2011], [PAMS2012] is applied. 107 3. Testbed Platform 109 A large-scale and realistic Internet testbed platform with support 110 for the multi-homing feature of the underlying SCTP protocol is 111 NorNet. A description of NorNet is provided in [PAMS2013-NorNet], 112 [ComNets2013-Core], some further information can be found on the 113 project website [NorNet-Website]. 115 4. Security Considerations 117 Security considerations for the SCTP sockets API are described by 118 [RFC6458]. 120 5. IANA Considerations 122 This document does not require IANA actions. 124 6. Acknowledgments 126 The authors would like to thank Michael Tuexen for his support. 128 7. References 130 7.1. Normative References 132 [RFC4960] Stewart, R., Ed., "Stream Control Transmission Protocol", 133 RFC 4960, DOI 10.17487/RFC4960, September 2007, 134 . 136 [RFC6458] Stewart, R., Tuexen, M., Poon, K., Lei, P., and V. 137 Yasevich, "Sockets API Extensions for the Stream Control 138 Transmission Protocol (SCTP)", RFC 6458, 139 DOI 10.17487/RFC6458, December 2011, 140 . 142 [I-D.tuexen-tsvwg-sctp-multipath] 143 Amer, P., Becke, M., Dreibholz, T., Ekiz, N., Iyengar, J., 144 Natarajan, P., Stewart, R., and M. Tuexen, "Load Sharing 145 for the Stream Control Transmission Protocol (SCTP)", 146 draft-tuexen-tsvwg-sctp-multipath-12 (work in progress), 147 June 2016. 149 7.2. Informative References 151 [Dre2012] Dreibholz, T., "Evaluation and Optimisation of Multi-Path 152 Transport using the Stream Control Transmission Protocol", 153 Habilitation Treatise, March 2012, 154 . 158 [PAMS2012] 159 Dreibholz, T., Adhari, H., Becke, M., and E. Rathgeb, 160 "Simulation and Experimental Evaluation of Multipath 161 Congestion Control Strategies", Proceedings of the 2nd 162 International Workshop on Protocols and Applications with 163 Multi-Homing Support (PAMS) ISBN 978-0-7695-4652-0, 164 DOI 10.1109/WAINA.2012.186, March 2012, 165 . 168 [SoftCOM2011] 169 Dreibholz, T., Becke, M., Adhari, H., and E. Rathgeb, 170 "Evaluation of A New Multipath Congestion Control Scheme 171 using the NetPerfMeter Tool-Chain", Proceedings of the 172 19th IEEE International Conference on Software, 173 Telecommunications and Computer Networks (SoftCOM) Pages 174 1-6, ISBN 978-953-290-027-9, September 2011, 175 . 178 [PAMS2011] 179 Adhari, H., Dreibholz, T., Becke, M., Rathgeb, E., and M. 180 Tuexen, "Evaluation of Concurrent Multipath Transfer over 181 Dissimilar Paths", Proceedings of the 1st International 182 Workshop on Protocols and Applications with Multi-Homing 183 Support (PAMS) Pages 708-714, ISBN 978-0-7695-4338-3, 184 DOI 10.1109/WAINA.2011.92, March 2011, 185 . 188 [ConTEL2011] 189 Dreibholz, T., Becke, M., Adhari, H., and E. Rathgeb, "On 190 the Impact of Congestion Control for Concurrent Multipath 191 Transfer on the Transport Layer", Proceedings of the 11th 192 IEEE International Conference on 193 Telecommunications (ConTEL) Pages 397-404, 194 ISBN 978-953-184-152-8, June 2011, . 198 [AINA2010] 199 Dreibholz, T., Becke, M., Pulinthanath, J., and E. 200 Rathgeb, "Applying TCP-Friendly Congestion Control to 201 Concurrent Multipath Transfer", Proceedings of the 24th 202 IEEE International Conference on Advanced Information 203 Networking and Applications (AINA) Pages 312-319, 204 ISBN 978-0-7695-4018-4, DOI 10.1109/AINA.2010.117, April 205 2010, . 208 [Globecom2010] 209 Dreibholz, T., Becke, M., Rathgeb, E., and M. Tuexen, "On 210 the Use of Concurrent Multipath Transfer over Asymmetric 211 Paths", Proceedings of the IEEE Global Communications 212 Conference (GLOBECOM) ISBN 978-1-4244-5637-6, 213 DOI 10.1109/GLOCOM.2010.5683579, December 2010, 214 . 217 [IAS2006] Iyengar, J., Amer, P., and R. Stewart, "Concurrent 218 Multipath Transfer Using SCTP Multihoming Over Independent 219 End-to-End Paths", IEEE/ACM Transactions on 220 Networking, Volume 14, Number 5, Pages 951-964, 221 ISSN 1063-6692, DOI 10.1109/TNET.2006.882843, October 222 2006, 223 . 225 [PAMS2013-NorNet] 226 Dreibholz, T. and E. Gran, "Design and Implementation of 227 the NorNet Core Research Testbed for Multi-Homed Systems", 228 Proceedings of the 3nd International Workshop on Protocols 229 and Applications with Multi-Homing Support (PAMS) Pages 230 1094-1100, ISBN 978-0-7695-4952-1, 231 DOI 10.1109/WAINA.2013.71, March 2013, 232 . 236 [ComNets2013-Core] 237 Gran, E., Dreibholz, T., and A. Kvalbein, "NorNet Core - A 238 Multi-Homed Research Testbed", Computer Networks, Special 239 Issue on Future Internet Testbeds Volume 61, Pages 75-87, 240 ISSN 1389-1286, DOI 10.1016/j.bjp.2013.12.035, March 2014, 241 . 244 [NorNet-Website] 245 Dreibholz, T., "NorNet -- A Real-World, Large-Scale Multi- 246 Homing Testbed", Online: https://www.nntb.no/, 2016, 247 . 249 Authors' Addresses 251 Thomas Dreibholz 252 Simula Research Laboratory, Network Systems Group 253 Martin Linges vei 17 254 1364 Fornebu, Akershus 255 Norway 257 Phone: +47-6782-8200 258 Fax: +47-6782-8201 259 Email: dreibh@simula.no 260 URI: http://www.iem.uni-due.de/~dreibh/ 262 Martin Becke 263 HAW Hamburg, Informatics Department 264 Berliner Tor 7 265 20099 Hamburg, Hamburg 266 Germany 268 Phone: +49-40-42875-8104 269 Fax: +49-40-42875-8309 270 Email: martin.becke@haw-hamburg.de 271 URI: http://www.scimbe.de/about.html 273 Hakim Adhari 274 University of Duisburg-Essen, Institute for Experimental Mathematics 275 Ellernstrasse 29 276 45326 Essen, Nordrhein-Westfalen 277 Germany 279 Phone: +49-201-183-7667 280 Fax: +49-201-183-7673 281 Email: hakim.adhari@iem.uni-due.de