Network Trouble Shooting help.

[Cyber Source]

Restricting the protocols in use may help as well.

Robert Meyer wrote:

>First and foremost, if you have stuff that is mixing 10 and 100 connections,
>force EVERYTHING to half duplex.  If you have mixed full and half duplex
>running, you WILL get gajillions (estimated) FCS errors that will invisibly
>chew  MASSIVE amounts of bandwidth.  If you are running a 100MB only network
>force EVERYTHING to FULL duplex.  That includes the switches if you can control
>them and the NICs on the PCs.  Besides the invisible bandwidth loss,
>occasionally an FCS will come out as valid, even though the packet is
>corrupted.  In this case, you can corrupt files without having a clue that it
>happened.  We had this happening at Kodak when I was there years ago.  The
>switches were all talking to each other with 100baseT-FD but the client
>workstations were using 10BaseT-HD.  We corrupted a mess of AutoCAD drawings
>over the period of two weeks.
>
>Cheers!
>
>Bob
>
>--- Greg Neumann <dadneumann at adelphia.net> wrote:
>  
>
>>Anybody know anybody qualified to do network trouble shooting for a 
>>Windows 2000/XP setup?
>>Intuit tech supports blames network hardware/settings for troubles we're 
>>having. I don't have the equipment or real expertise to do this. It's a 
>>very small network setup, 11 pc's, (one pretending to be a 
>>server,another pretending to be a firewall), 2 print servers, one 
>>networked printer connected by various 10/100 8 port switches. I've 
>>checked all that I can (looks like it's connected, the status lights 
>>show "good", pings go through in good time) but ... I can't find any of 
>>the "lag" or bandwidth hogging processes that Intuit insists is causing 
>>the problems. I've gone so far as to disconnect everything but the 
>>server and a single workstation.
>>Anyway, as this could be marginal hardware, and I have no tools for 
>>checking that, I've been asked to seek outside assistance.
>>Runs TCP/IP in a Win2000 environment. NO active Linux boxes connected, 
>>and I'm not real familiar w/ network troubleshooting tools. This will, 
>>of course, pay some money.
>>Any recommendations?
>>Thanks,
>>Greg Neumann
>>    
>>
>
>
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