Selectively Reliable Multicast Protocol (SRMP)
RFC 4410
| Document | Type |
RFC - Experimental
(February 2006; Errata)
Was draft-pullen-srmp (individual in tsv area)
|
|
|---|---|---|---|
| Last updated | 2013-03-02 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 4410 (Experimental) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Allison Mankin | ||
| Send notices to | mpullen@netlab.gmu.edu | ||
Network Working Group M. Pullen
Request for Comments: 4410 F. Zhao
Category: Experimental George Mason Univ
D. Cohen
Sun Microsystems
February 2006
Selectively Reliable Multicast Protocol (SRMP)
Status of This Memo
This memo defines an Experimental Protocol for the Internet
community. It does not specify an Internet standard of any kind.
Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
The Selectively Reliable Multicast Protocol (SRMP) is a transport
protocol, intended to deliver a mix of reliable and best-effort
messages in an any-to-any multicast environment, where the best-
effort traffic occurs in significantly greater volume than the
reliable traffic and therefore can carry sequence numbers of reliable
messages for loss detection. SRMP is intended for use in a
distributed simulation application environment, where only the latest
value of reliable transmission for any particular data identifier
requires delivery. SRMP has two sublayers: a bundling sublayer
handling message aggregation and congestion control, and a
Selectively Reliable Transport (SRT) sublayer. Selection between
reliable and best-effort messages is performed by the application.
Pullen, et al. Experimental [Page 1]
RFC 4410 Selectively Reliable Multicast Protocol February 2006
Table of Contents
1. Introduction ....................................................3
1.1. Terminology ................................................3
2. Protocol Description ............................................4
3. Message Formats .................................................6
3.1. Bundle Message Format: .....................................6
3.2. Bundle Header Format .......................................7
3.3. Feedback Message Format ....................................9
3.4. SRT Mode 0 Header Format ..................................10
3.5. SRT Mode 1 Header Format ..................................11
3.6. SRT Mode 2 Header Format ..................................11
3.7. SRT NACK Format ...........................................12
3.8. User-Configurable Parameters ..............................13
4. TFMCC Operation ................................................13
4.1. TCP Rate Prediction Equation for TFMCC ....................13
4.2. Bundling ..................................................13
4.3. Congestion Control ........................................14
4.4. Any-Source Multicast ......................................14
4.5. Multiple Sources ..........................................14
4.6. Bundle Size ...............................................15
4.7. Data Rate Control .........................................15
4.8. Mode 1 Loss Detection .....................................16
4.8.1. Sending a Negative Acknowledgement .................16
4.9. Unbundling ................................................17
4.10. Heartbeat Bundle .........................................17
5. SRT Operation ..................................................17
5.1. Mode 0 Operation ..........................................18
5.1.1. Sending Mode 0 Messages ............................18
5.1.2. Receiving Mode 0 Messages ..........................18
5.2. Mode 1 Operation ..........................................18
5.2.1. Sending Mode 1 Data Messages .......................19
5.2.2. Receiving Mode 1 Data Messages .....................19
5.2.3. Sending a Negative Acknowledgement .................20
5.2.4. Receiving a Negative Acknowledgement ...............21
5.3. Mode 2 Operation ..........................................21
5.3.1. Sending Mode 2 Data Messages .......................21
5.3.2. Receiving Mode 2 Data Messages .....................22
5.3.3. Sending a Positive Acknowledgement .................23
5.3.4. Receiving a Positive Acknowledgement ...............23
6. RFC 2357 Analysis ..............................................23
6.1. Scalability ...............................................23
6.2. Congestion ................................................24
7. Security Considerations ........................................25
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