draft-ietf-nsis-ntlp-sctp-03.txt   draft-ietf-nsis-ntlp-sctp-04.txt 
Network Working Group X. Fu Network Working Group X. Fu
Internet-Draft C. Dickmann Internet-Draft C. Dickmann
Intended status: Standards Track University of Goettingen Intended status: Standards Track University of Goettingen
Expires: August 17, 2008 J. Crowcroft Expires: August 23, 2008 J. Crowcroft
University of Cambridge University of Cambridge
February 14, 2008 February 20, 2008
General Internet Signaling Transport (GIST) over SCTP General Internet Signaling Transport (GIST) over SCTP
draft-ietf-nsis-ntlp-sctp-03.txt draft-ietf-nsis-ntlp-sctp-04.txt
Status of this Memo Status of this Memo
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This Internet-Draft will expire on August 17, 2008. This Internet-Draft will expire on August 23, 2008.
Copyright Notice Copyright Notice
Copyright (C) The IETF Trust (2008). Copyright (C) The IETF Trust (2008).
Abstract Abstract
The General Internet Signaling Transport (GIST) protocol currently The General Internet Signaling Transport (GIST) protocol currently
uses TCP or TLS over TCP for connection mode operation. This uses TCP or TLS over TCP for connection mode operation. This
document describes the usage of GIST over the Stream Control document describes the usage of GIST over the Stream Control
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different requirements can belong to different streams, thus a different requirements can belong to different streams, thus a
message loss or reordering in a stream will only affect the delivery message loss or reordering in a stream will only affect the delivery
of messages within that particular stream, and not any other streams. of messages within that particular stream, and not any other streams.
6. Security Considerations 6. Security Considerations
The security considerations of both [1] and [2] apply. For securing The security considerations of both [1] and [2] apply. For securing
GIST over SCTP channel, it is recommended to use DTLS [7], to take GIST over SCTP channel, it is recommended to use DTLS [7], to take
the advantage of all the features provided by SCTP and its the advantage of all the features provided by SCTP and its
extensions. DTLS over SCTP is currently being specified in [8]. The extensions. DTLS over SCTP is currently being specified in [8]. The
usage of DTLS for GIST is similar to TLS for GIST as specified in usage of DTLS for GIST over SCTP is similar to TLS for GIST as
[1], and a MA-protocol-ID for DTLS is yet to be defined in another specified in [1], where a stack-proposal containing both MA-Protocol-
document. IDs for SCTP and DTLS during the GIST handshake phase.
7. IANA Considerations 7. IANA Considerations
A new MA-Protocol-ID (Forwards-SCTP) needs to be assigned, with a Two new MA-Protocol-IDs (Forwards-SCTP and Fowards-DTLS) need to be
recommended value of 3. assigned, with a recommended values of 3 and 4.
8. Acknowledgments 8. Acknowledgments
The authors would like to thank John Loughney, Robert Hancock, Andrew The authors would like to thank John Loughney, Robert Hancock, Andrew
McDonald, Fang-Chun Kuo and Jan Demter for their helpful suggestions. McDonald, Martin Stiemerling, Fang-Chun Kuo, Jan Demter for their
helpful suggestions.
9. References 9. References
9.1. Normative References 9.1. Normative References
[1] Schulzrinne, H. and R. Hancock, "GIST: General Internet [1] Schulzrinne, H. and R. Hancock, "GIST: General Internet
Signalling Transport", draft-ietf-nsis-ntlp-15 (work in Signalling Transport", draft-ietf-nsis-ntlp-15 (work in
progress), February 2008. progress), February 2008.
[2] Stewart, R., "Stream Control Transmission Protocol", RFC 4960, [2] Stewart, R., "Stream Control Transmission Protocol", RFC 4960,
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