DOCUMENT:Q102178  09-AUG-1993  [W_NT]
TITLE   :NetBEUI 3.0 Used in Windows NT is NBF
PRODUCT :Windows NT
PROD/VER:1.00 1.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:
 - Microsoft Windows NT operating system, version 3.1
 - Microsoft Windows NT Advanced Server, version 3.1
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SUMMARY
=======

NetBEUI (NetBIOS Extended User Interface) version 3.0 used in
Microsoft Windows NT is not a true NetBEUI. Instead, it is a frame
protocol known as NBF (NetBIOS Frame).

MORE INFORMATION
================

NBF can be considered to be a successor of NetBEUI. It retains
compatibility with the existing LAN Manager and local area network
Server implementations of NetBEUI. The continued support for NetBIOS
is provided through an additional driver and dynamic data library
(DLL).

NBF is both enhanced and optimized as compared to the earlier versions
of NetBEUI. It conforms to transport driver interface (TDI) which is
used by the server and redirector processes to communicate with
transport protocol. Using NBF and TDI has the following advantages:

 - Unlimited Sessions - NBF with TDI eliminates the 254
   session limit to a server on one network card. TDI does
   not have this limitation.

 - Better Performance - NBF is completely self tuning and provides
   much better performance over relatively slower links and smaller
   local area networks. Note also that NBF is still a nonroutable
   protocol not suitable for a wide area network (WAN). However, it is
   the fastest protocol of all protocols in Windows NT for a local
   area network segment.

Additional reference words: 1.00 1.10 biue buie

KBCategory:
KBSubCategry: prot

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