Hi, I have been using Linux since the early days... and recently that I have installed RH6.2 with Linux kernel 2.2.16 on my Dell laptop (P3-500, 256MB RAM). One thing that I found is the networking performance between this Linux box and all my Solaris 7 based servers are very very slow. I only get around 7-10k/s transfer rate over 100-BT link. I have desperately searched all the websites that I can think of to find any answers, but none helpful. Here is a detailed problem description: Linux box: -- Dell P3-500Mhz, 256 RAM -- RH 6.2 -- Kernel 2.2.14, 2.2.16, and I compiled 2.4.0-test7 -- Xircom CardBus Combo card 100/BT Solaris 7 -- Most high-end servers E4500 and above -- 100BT or Giga-Ether Doing a FTP or HTTP from Linux to Sun, transfer rate is around 3-10K/s. If I do FTP to another Linux box, the transfer rate is at least 1000k - 3000k/s Booting the laptop into Win2000, file transfer from it and Sun is at least 1000K/s, normally 3000k/s. I heard it might be Solaris TCP window scaling issue... how do I solve this besides telling me to switch from Linux to FreeBSD, which I will not do. Any help will be greatly appreciated. Thanks, Jack PS: By email to this mailing list is a desperate attempt to solve this problem... Please cc to my email address directly since I am not on the mailing list. Thanks! -- Jack Duan, [EMAIL PROTECTED] Systems Architect, iPlanet Infrastructure Services - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/