AW: Question Regarding TCPWindowsize on W2K

I had a lot of trouble using windowssize 2048....
Normal backup went ok, since receive window from NT is never 
used with many data. 

Restore to this NT-box(GB Ethernet) was sometimes not stable (internal
system error) 

Restore over this box to a networkshare (all GB Ethernet) was impossible -
directories came back - but immediate with the first data bytes there was
always that internal system error.

With changing windowsize to 63  (not 64!!!) the trouble disappeared.

I tried changes in registry for  RFC1323 but had the same problems.

Stefan Holzwarth



> -----Ursprüngliche Nachricht-----
> Von: Joshua S. Bassi [mailto:jbassi AT IHWY DOT COM]
> Gesendet: Donnerstag, 13. Dezember 2001 01:57
> An: ADSM-L AT VM.MARIST DOT EDU
> Betreff: Re: Question Regarding TCPWindowsize on W2K
> 
> 
> That was the limit on NT 4.0.  With W2K I usually set it to 128.
> 
> 
> --
> Joshua S. Bassi
> Independent IT Consultant
> IBM Certified - AIX/HACMP, SAN, Shark
> Tivoli Certified Consultant- ADSM/TSM
> Cell (408)&(831) 332-4006
> jbassi AT ihwy DOT com
> 
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] 
> On Behalf Of
> Seay, Paul
> Sent: Wednesday, December 12, 2001 8:35 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Question Regarding TCPWindowsize on W2K
> 
> To my knowledge 63 is the limit.
> 
> -----Original Message-----
> From: Steven Chaba [mailto:Steven_Chaba AT RGE DOT COM]
> Sent: Wednesday, December 12, 2001 11:19 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Question Regarding TCPWindowsize on W2K
> 
> 
> >From one of my WinTel gurus:
> 
> ----- Forwarded by Steven Chaba/RG&E on 12/12/01 11:18 AM -----
> 
>                     John Wiersma
>                                          To:     Steven 
> Chaba/RG&E@RG&E
>                     12/12/01             cc:
>                     11:01 AM             Subject:     please post to
> ADSM.org
> 
> 
> 
> 
> 
> I run TSM 4.1 on an AIX server with NT and 2000 clients.
> I have a question regarding TCPWindowSize on Windows 2000 Server.
> I was advised to set this parameter to 128 on Windows 2000 machines.
> When I do that, this shows up in the dsmerror.log:
> "The TCP window size 128K is not supported by your system. It will be
> set
> to the allowed size - 63K."
> My consultant says he has not seen this.
> Also, when I run the client on 2000 Professional, I do not have this
> issue.
> Anyone else seen this? Any advice?
> Thanks,
> 
> John Wiersma
> Senior Network Analyst
> Rochester Gas & Electric Corporation
> john_wiersma AT rge DOT com
> (585) 724-8053
>