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TCP/IP Illustrated, Volume 3: TCP for Transactions, HTTP, NNTP, and the UNIX Domain Protocols (paperback)

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TCP/IP Illustrated, Volume 3: TCP for Transactions, HTTP, NNTP, and the UNIX Domain Protocols (paperback)


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  • Copyright 1996
  • Dimensions: 7-3/8" x 9-1/4"
  • Pages: 352
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-445710-2
  • ISBN-13: 978-0-13-445710-9

Praised by reviewers and practicing TCP/IP programmers alike, the TCP/IP Illustrated series examines the many facets of the TCP/IP protocol suite using a unique and highly-effective visual approach that describes the inner workings of TCP/IP with detail, insight, and clarity.

Volume 3 provides detailed coverage of four essential topics with which today's TCP/IP programmers and network administrators must be thoroughly familiar:

  • T/TCP (TCP for Transactions), an extension to TCP that makes client-server transactions faster, more efficient, and more reliable;

  • HTTP (Hypertext Transfer Protocol), the foundation for the rapidly expanding World Wide Web;

  • NNTP (the Network News Transfer Protocol), the basis for the Usenet news system; and

  • UNIX Domain Protocols, a set of protocols used heavily in UNIX implementations.

As in the previous two volumes, the book is filled with examples and implementation details within the 4.4BSD-Lite networking code.

The TCP/IP Illustrated series provides a complete picture of the protocol suite that drives the Internet, and gives programmers, system administrators, and serious users the information, understanding, and skills they need to remain at the forefront of networking technology.


Sample Content

Table of Contents

(Most chapters open with "Introduction" and conclude with "Summary".)



1. T/TCP Introduction.


UDP Client-Server.

TCP Client-Server.

T/TCP Client-Server.

Test Network.

Timing Example.





2. T/TCP Protocol.


New TCP Options for T/TCP.

T/TCP Implementation Variables.

State Transition Diagram.

T/TCP Extended States.


3. T/TCP Examples.


Client Reboot.

Normal T/TCP Transaction.

Server Receives Old Duplicate SYN.

Server Reboot.

Request or Reply Exceeds MSS.

Backward Compatibility.


4. T/TCP Protocol (Continued).


Client Port Numbers and TIME_WAIT State.

Purpose of the TIME_WAIT State.

TIME_WAIT State Truncation.

Avoiding the Three-Way Handshake with TAO.


5. T/TCP Implementation: Socket Layer.



sosend Function.


6. T/TCP Implementation: Routing Table.


Code Introduction.

radix_node_head Structure.

rtentry Structure.

rt_metrics Structure.

in_inithead Function.

in_addroute Function.

in_matroute Function.

in_clsroute Function.

in_rtqtimo Function.

in_rtqkill Function.


7. T/TCP Implementation: Protocol Control Blocks


in_pcbladdr Function.

in_pcbconnect Function.


8. T/TCP Implementation: TCP Overview


Code Introduction.

TCP protosw Structure.

TCP Control Block.

tcp_init Function.

tcp_slowtimo Function.


9. T/TCP Implementation: TCP Output


tcp_output Function.


10. T/TCP Implementation: TCP Functions


tcp_newtcpcb Function.

tcp_rtlookup Function.

tcp_gettaocache Function.

Retransmission Timeout Calculations.

tcp_close Function.

tcp_msssend Function.

tcp_mssrcvd Function.

tcp_dooptions Function.

tcp_reass Function.


11. T/TCP Implementation: TCP Input


Preliminary Processing.

Header Prediction.

Initiation of Passive Open.

Initiation of Active Open.

PAWS: Protection Against Wrapped Sequence Numbers.

ACK Processing.

Completion of Passive Opens and Simultaneous Opens.

ACK Processing (Continued).

FIN Processing.


12. T/TCP Implementation: TCP User Requests.



tcp_connect Function.


tcp_usrclosed Function.

tcp_sysctl Function.

T/TCP Futures.



13. HTTP: Hypertext Transfer Protocol.


Introduction to HTTP and HTML.

HTTP Protocol.

An Example.

HTTP Statistics.

Performance Problems.


14. Packets Found on an HTTP Server.


Multiple HTTP Servers.

Client SYN Interarrival Time.

RTT Measurements.

listen Backlog Queue.

Client SYN Options.

Client SYN Retransmissions.

Domain Names.

Timing Out Persist Probes.

Simulation of T/TCP Routing Table Size.

Mbuf Interaction.

TCP PCB Cache and Header Prediction.


15. NNTP: Network News Transfer Protocol.


NNTP Protocol.

A Simple News Client.

A More Sophisticated News Client.

NNTP Statistics.



16. Unix Domain Protocols: Introduction.




Coding Examples.


17. Unix Domain Protocols: Implementation.


Code Introduction.

Unix domain and protosw Structures.

Unix Domain Socket Address Structures.

Unix Domain Protocol Control Blocks.

uipc_usrreq Function.

PRU_ATTACH Request and unp_attach Function.

PRU_DETACH Request and unp_detach Function.

PRU_BIND Request and unp_bind Function.

PRU_CONNECT Request and unp_connect Function.

PRU_CONNECT2 Request and unp_connect2 Function.

socketpair System Call.

pipe System Call.


PRU_DISCONNECT Request and unp_disconnect Function.

PRU_SHUTDOWN Request and unp_shutdown Function.

PRU_ABORT Request and unp_drop Function.

Miscellaneous Requests.


18. Unix Domain Protocols: I/O and Descriptor Passing.
Appendix A. Measuring Network Times.

RTT Measurements Using Ping.

Protocol Stack Measurements.

Latency and Bandwidth.

Appendix B. Coding Applications for T/TCP.


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