Subject: Recent NetBSD network code improvements
To: None <netbsd-announce@NetBSD.ORG>
From: Jason Thorpe <thorpej@NetBSD.ORG>
List: netbsd-announce
Date: 05/15/1998 17:37:43
Hi folks...

This is just a quick note to announce some cool new features to NetBSD's
networking code, recently introduced in NetBSD-current.

	* Monotonically increasing "current time" timestamps have bee
	  added to the fast and slow timeout dispatch routines.  These
	  can be used to implement network timers which compare "current
	  time" against "when timer will expire", which can can reduce
	  read/modify/write/compare/branch cycles to read/compare/branch,
	  or used for time-ordered timeout queues.  TCP timers and the SYN
	  cache timers now use this PRT timer facility, which has resulted
	  in much less expensive timer expiration loops.

	  Contact: Jason R. Thorpe <>

	* Support for HIPPI, an 800Mbit/sec network technology, as been
	  added, along with a driver for the Essential Communications
	  RoadRunner HIPPI interface.

	  Contact: Kevin M. Lahey <>

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Until next time...

	-- The NetBSD Network Code Hackers