The U-Net architecture provides low-latency and high-bandwidth communication over commodity networks for workstations and PCs. It achieves this by virtualizing the network interface such that every application can send and receive messages without operating system intervention. With U-Net, the operating system is no longer involved with the sending and receiving of messages. This allows communication protocols to be implemented at user-level where they can be integrated tightly with the application. In particular, the large buffering and copying costs found in typical in-kernel networking stacks can be avoided and feed-back to the application about flow-control and packet loss is facilitated.

Current Version:   Unix 2.0

License Type:   ??

Home Site:

Source Code Availability:


Available Binary Packages:

  • Debian Package: No
  • RedHat RPM Package: No
  • Other Packages: No

Targeted Platforms:

  • PCs running Windows/NT 4.0 and using a DECchip DC21140 based fast ethernet interface.
  • PCs running Linux and using a DECchip DC21140 based fast ethernet interface or using a Fore Systems PCA-200 (not PCA-200E) ATM interface.
  • Sparcstations 10&20 running SunOS 4.1.x or Solaris 2.x and using a FORE Systems SBA-200 (not SBA-200E) ATM interface.

Software/Hardware Requirements:

See above

Other Links:

Mailing Lists/USENET News Groups:


User Comments:

  • None

See A Screen Shot? (Not Yet)

  SAL Home   |   Parallel Computing   |   Misc

Comments? SAL@KachinaTech.COM
Copyright © 1995-2001 by Herng-Jeng Jou
Copyright © 1997-2001 by Kachina Technologies, Inc.
All rights reserved.