Article: Q278678
Product(s): Microsoft Windows NT
Version(s): 2000,4.0
Operating System(s):
Keyword(s): kbnetwork
Last Modified: 06-AUG-2002
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The information in this article applies to:
- Microsoft Windows NT Workstation version 4.0
- Microsoft Windows NT Server version 4.0
- Microsoft Windows NT Server version 4.0, Terminal Server Edition
- Microsoft Windows NT Server, Enterprise Edition version 4.0
- Microsoft Windows 2000 Professional
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Datacenter Server
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SYMPTOMS
========
If you share folders on a local computer and then access these local file
systems by using their share names, transferring files may be much slower than
when you use local drive and path names.
CAUSE
=====
This behavior can occur if TCP/IP is installed as one of the network protocols.
When you use share names to access local file systems, the data passes through
server, redirector, and network protocol code. The TCP/IP loopback code handles
the data inefficiently and causes a bottleneck.
RESOLUTION
==========
If you use NetBEUI as the only protocol, this problem does not occur. Or, if you
use \\<ipaddr>\<sharename> instead of
\\<server>\<sharename>, where <ipaddr> is the local IP address
of your network adapter, the loopback code is not used, avoiding the bottleneck.
STATUS
======
Microsoft has confirmed that this is a problem in the Microsoft products that
are listed at the beginning of this article.
MORE INFORMATION
================
Using server, redirector, and networking code adds additional overhead.
Microsoft does not recommend accessing local file systems by using share names.
Additional query words:
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Keywords : kbnetwork
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000DataServ kbwin2000DataServSearch kbwin2000Serv kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400 kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbNTTermServ400 kbNTTermServSearch kbWinAdvServSearch kbWinDataServSearch
Version : :2000,4.0
Issue type : kbbug
Solution Type : kbpending
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