Scott, A clue from this webpage: http://www.psc.edu/networking/perf_tune.html Describing Win98 it says "DefaultRcvWindow is a string type and the value describes the default receive windowsize for the TCP stack. Otherwise the windowsize has to be programmed in apps with setsockopt." Perhaps the app is setting it differently. It also seems to imply that GlobalMaxTcpWindowSize should do it since the OS should enforce this on the app. Do you know what units the variable uses? that website indicates that the default is a gig, so it may be measured in K or M, just a thought. rgds Marc
s vermill wrote: > > Marc Thach Xuan Ky wrote: > > > > Are you trying to make the window smaller? > > rgds > > Marc > > Yes. I was hoping to set up a demonstration on the impact of high > bandwidth*delay product networks without actually having a high > bandwidth*delay product network. By artifically enforcing a small rcv > window, I should get about the same result. > > Thanks Marc, > > Scott > > > > > s vermill wrote: > > > > > > On a W2k machine, I've tried several different > > recommendations for adjusting > > > the TCP receive window size. None of them, including those > > directly from > > > Microsoft, seem to have any impact. I'm capturing my own > > traffic and my > > > advertised window is always in the 64k range. > > > > > > I've tried editing the \tcpip\parameters to include > > 'TcpWindowSize' and > > > 'GlobalMaxTcpWindowSize' - neither of which had any effect. > > I've tried > > > editing \VxD\MSTCP to include 'DefaultRcvWindow' - also no > > effect. > > > > > > Anyone know how to manipulate the rcv window that my machine > > will > > > advertise. For that matter, what about the other MS OSes? > > XP? Win98? > > > > > > Thanks all, > > > > > > Scott Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59416&t=59400 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
