Someone on this post wanted to know if Sliding window size can actually be monitored. The reply is yes , it can be . I used Ether peek to do the same. Start the Ether peek capture. Stop capture.Double click on any one entry of the packet table.Under TCP, look for " window" . This is the window size and it will vary as the tx-rx between a sending station and receiving station takes place. I am attaching one sniffed packet showing the same. I was trying to troubleshoot a cookie server when I ran into this. Kumar ___________________________________________________________________________ Visit http://www.visto.com/info, your free web-based communications center. Visto.com. Life on the Dot. _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]