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README 
 
Copyright (c) 1997 University of Southern California.
All rights reserved.                                            
								 
Redistribution and use in source and binary forms are permitted
provided that the above copyright notice and this paragraph are
duplicated in all such forms and that any documentation, advertising
materials, and other materials related to such distribution and use
acknowledge that the software was developed by the University of
Southern California, Information Sciences Institute.  The name of the
University may not be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

***********************************************************************

This file includes patches for modifying TCP and HTTP to avoid TIME_
WAIT State at server side. It also includes patches for tuning up 
WebStone 2.0 to support measuring HTTP1.1 performances undering our
modifications.

Furthur information can be obtained from http://www.isi.edu/atomic2/

Detailed description of our modification and measurements can be
found at the internet draft: http://info.internet.isi.edu:80/in-drafts
/files/draft-faber-time-wait-avoidance-00.txt/

The patches includes:

  o  TCP kernel patch implements an improvement of TCP on SunOS 4.1.3 
     to support cleaning up TIME_WAIT state at active close side.

  o  Apache patch modifies Apache Server to support handling a new 
     method CLOSE for connection to help cleaning up TIME_WAIT state
     at HTTP server side.

  o  WebStone patch includes several enhancements and modification 
     needed for SunOS 4.1.3 and for the measurement of the above
     two patches.


The following people have contributed to this code :

	Joe Touch	Overal idea and design of TCP solution
  	Ted Faber 	Overal investigation, TCP kernel patch
  	Wei Yue		Apache and WebStone patches

(end.)