[e2e] Transport Protocol Road Map(s)

[Joe Touch]

IMO, it would be useful (to say the least) to distinguish between 
informational, experimental, standards, standards-track, and BCPs.

A BCP is different from a case-study - the former making a 
recommendation that has been vetted by a community.

FWIW, it might be useful to have groups such as:
	- basic correctness of the protocols
	- playing nice with others
	- performance optimizations

Joe

Duke, Martin wrote:

> Here's a go at categorizing all the TCP RFCs.  I would be interested in
> feedback, specifically:
> 
> (1) Whether all necessary categories are present, and all RFCs are in
> the correct category.
> 
> (2) Any notes about the extent of fielding of the various proposals.
> 
> (3) Any missing RFCs
> 
> (4) Further comments to summarize the individual RFCs.
> 
> -Martin
> --------------------------------
> 
> Summary of TCP RFCs
> 
> ABSTRACT
> 
> This Document lists the Requests for Comment (RFC) of importance to
> implementers of TCP.   An effort has been made to exclude RFCs that are
> obsolete or irrelevant, while  distinguishing standards that MUST be
> followed by TCP from various proposals that MAY be  implemented.
> 
> 
> I. INTRODUCTION
> 
> This document consists of three parts:
> 
> (1) A list of the RFCs that lay out the basic specifications for TCP;
> 
> (2) A list of various proposals, some of which are broadly deployed in
> the internet,  that are alive in the IETF and that may be implemented in
> some TCP stacks;
> 
> (3) Studies of TCP performance in specific environments, often with
> prescriptions; and
> 
> (4) Tutorials and tools for the TCP implementor.
> 
> 
> 
> 
> II. STANDARDS
> 
> 0793 "Transmission Control Protocol" (Sep 81): The core document that
> describes the core  semantics of data transmission and acknowledgement.
> 
> 1122 "Requirements for Internet Hosts - Communication Layers" (Oct 89):
> update and  clarification of RFC 793.
> 
> 1213 "Management Information Base for Network Management of TCP/IP-based
> internets:MIB-II" (Mar 91): the data fields that a TCP implementation is
> required to  keep track of.
> 
> 2581 "TCP Congestion Control" (Apr 99): Latest version of standards in
> sender rate  control.
> [Ed. note: Technically listed as a "Proposed Standard", although it's
> pretty universal.   Should it be Standard?]
> 
> 2988 "Computing TCP's Retransmission Timer" (Nov 00): specifies
> algorithm for computing  the RTO. [Ed. note: also "proposed"]
> 
> 
> 
> 
> III. EXTENSIONS
> 
> 1144 "Compressing TCP/IP headers for low-speed serial links" (Feb 90):
> not many people  have this problem anymore.
> 
> 1146 "TCP alternate checksum options" (Mar 90): for those who insist
> that the standard  checksum algorithm is insufficiently robust.
> 
> 1323 "TCP Extensions for High Performance" (May 92): introduces window
> scaling,  timestamps, and protection against wrapped sequence numbers
> for long, fat pipes.   Implemented in Linux and BSD; a non-default
> option in Windows.
> 
> 1337 "TIME-WAIT Assassination Hazards in TCP" (May 92): resolves some
> bad corner cases  at connection close.
> 
> 1644 "T/TCP -- TCP Extensions for Transactions Functional Specification"
> (Jul 94)
> 
> 1693 "An Extension to TCP: Partial Order Service" (Nov 94): for
> applications where total  reliability isn't necessary.
> 
> 2012 "SNMPv2 Management Information Base for the Transmission Control
> Protocol using  SMIv2" (Nov 96): an extension to the MIB to support
> IPv6.
> 
> 2018 "TCP Selective Acknowledgement Options" (Oct 96): introduces SACK.
> 
> 2140 "TCP Control Block Interdependence" (Apr 97): enables TCP
> connections to share  information.  Partially implemented in Linux.
> 
> 2452 "IP Version 6 Management Information Base for the Transmission
> Control Protocol"  (Dec 98): further MIB extensions for IPv6.
> 
> 2582 "The NewReno Modification to TCP's Fast Recovery Algorithm" (Apr
> 99): tweaks to  congestion control.
> 
> 2861 "TCP Congestion Window Validation" (Jun 00): decays congestion
> window if it hasn't  been recently utilized.
> 
> 2873 "TCP Processing of the IPv4 Precendence Field" (Jun 00):  resolves
> a conflict  between different uses of bits in the IP header.
> 
> 2883 "An Extension to the Selective Acknowledgement (SACK) Option for
> TCP" (Jul 00):  introduces the concept of duplicate SACK.
> 
> 3042 "Enhancing TCP's Loss Recovery Using Limited Transmit" (Jan 01): a
> means of  avoiding coarse timeouts when the window is small.
> 
> 3168 "The Addition of Explicit Congestion Notification (ECN) to IP" (Sep
> 01): a means of  detecting congestion without resorting to loss.
> 
> 3390 "Increasing TCP'S Initial Window" (Oct 02): starts with a larger
> window, given  larger modern bandwidths.
> 
> 3465 "TCP Congestion Control with Appropriate Byte Counting (ABC)" (Feb
> 03): congestion  control uses number of bytes acknowledged rather than
> number of acknowledgements  received.  Implemented in Linux.
> 
> 3493 "Basic Socket Interface Extensions for IPv6" (Feb 03)
> 
> 3517 "A Conservative Selective Acknowledgement (SACK)-based Loss
> Recovery Algorithm for  TCP" (Apr 03): tweaks the response to SACK.
> 
> 3522 "The Eifel Detection Algorithm for TCP" (Apr 03): uses timestamps
> to detect  spurious timeouts.
> 
> 3540 "Robust Explicit Congestion Notificaiton (ECN) signaling with
> Nonces" (Jun 03):  re-introduces ECN with security concerns addressed.
> 
> 
> 
> 
> 
> IV. CASE STUDIES AND BEST PRACTICE NOTES
> 
> 2415 "Simulation Studies of Increased Initial TCP Window Size" (Sep 98)
> 
> 2416 "When TCP Starts Up With Four Packets Into Only Three Buffers" (Sep
> 98)
> 
> 2488 "Enhancing TCP Over Satellite Channels using Standard Mechanisms
> (Jan 99)
> 
> 2525 "Known TCP Implementation Problems" (Mar 99)
> 
> 2760 "Ongoing TCP Research Related to Satellites" (Feb 00)
> 
> 2884 "Performance Evaluation of Explicit Congestion Notification (ECN)
> in IP Networks"  (Jul 00)
> 
> 2923 "TCP Problems with Path MTU Discovery" (Sep 00)
> 
> 2963 "A Rate Adaptive Shaper for Differentiated Services" (Oct 2000):
> optimizing TCP  performance in the presence of a DiffServ scheme.
> 
> 3135 "Performance Enhancing Proxies Intended to Mitigate Link-Related
> Degradations" (Jun  01)
> 
> 3155 "End-to-end Performance Implications of Links with Errors" (Aug 01)
> 
> 3360 "Inappropriate TCP Resets Considered Harmful" (Aug 02)
> 
> 3449 "TCP Performance Implications of Network Path Asymmetry" (Dec 02)
> 
> 3481 "TCP over Second (2.5G) and Third (3G) Generation Wireless
> Networks" (Feb 03)
> 
> 
> 
> 
> V. TOOLS AND TUTORIALS
> 
> 1180 "TCP/IP tutorial" (Jan 91): the basics
> 
> 1379 "Extending TCP for Transactions -- Concepts" (Nov 92)
> 
> 1470 "FYI on a Network Management Tool Catalog: Tools for Monitoring and
> Debugging  TCP/IP Internets and Interconnected Devices" (Jun 93)
> 
> 2151 "A Primer on Internet and TCP/IP Tools and Utilities" (Jun 97)
> 
> 2398 "Some Testing Tools for TCP Implementors" (Aug 98)