I remember coming across a knowledge base article on Microsoft's site that indicated
poor performance with NICs set to full duplex was because Windows NT didn't support
full-duplex operation. This was one of those cases where when the Microsoft Help Desk
tech had the client change the client's full-duplex settings to half-duplex, and the
PC's performance increased drastically, an incorrect assumption was made. I found
this article when my husband indicated he was experiencing poor performance at work
with a new network card in their server. I gave him the knowledge base article - and
it fixed his problem. For many months, I didn't realize the knowledge base article
was in error. Windows NT DID support full-duplex, and the driver he was using WAS
full-duplex capable. My husband was just plugged into a hub, rather than a switch -
and as you know, full-duplex on a hub will NEVER work. Voila. A little more
knowledge, and the true cause of the problem was found. If the aut!
hors of the book (OR... perhaps it was something the EDITOR added) saw this knowledge
base article, they accepted it as fact and didn't fully understand that Microsoft
misunderstood the problem.
DON'T for a second blame Microsoft for having incorrect information in their knowledge
base. There's just as many Cisco "gurus" who don't understand enough about
Microsoft's products to be able to draw correct inferences about why something isn't
working properly. The best understandings of how things work is when you have enough
information to see the whole picture - not just one side (Cisco / Microsoft). Anyhow,
I digress.
Here's another possibility as to where this myth started:
Q217305 - Full Duplex Support with Windows NT
http://support.microsoft.com/support/kb/articles/Q217/3/05.ASP?LN=EN-US&SD=gn&FR=0
-- Leigh Anne
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Mike Peterson
> Sent: Monday, September 25, 2000 7:18 AM
> To: [EMAIL PROTECTED]
> Subject: Full-duplex operations
>
>
>
>
> Hi all,
>
> By studying the Book : CISCO LAN SWITCHING by Kennedy Clark I found
> this NOTE on Chapter 1 page 15 :" Windows NT4.0 does not support
> FULL-DUPLEX operations because of drivers limitations.Some SUN
> workstations
> can also experience this, expecialy with Gigabit Ethernet."
>
> Has anyone study this? Can I have more details regarding Win NT
> limitations
> with full-duplex operations?
> Priscilla , Bruce what do you know about this problem?
> Thanks, in advance to everyone.
>
> Mike Peterson
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
> Share information about yourself, create your own public profile at
> http://profiles.msn.com.
>
> **NOTE: New CCNA/CCDA List has been formed. For more information go to
> http://www.groupstudy.com/list/Associates.html
> _________________________________
> UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
> FAQ, list archives, and subscription info: http://www.groupstudy.com
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_________________________________
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
