Hi All, Reading another posters comments (you learn all sort of interesing stuff here ;-) I checked my internet connection using the SpeedGuide.net TCP/IP Analyzer and discovered that my TCP Receive Window is somewhat smaller than anticipated, or than what a M$Windoze box which is running on the same LAN (using the same router) shows:
Windoze box: Default TCP Receive Window (RWIN) = 65535 Gentoo box: Default TCP Receive Window (RWIN) = 5840 The whole section in the TCP/IP Analyser shows: ============================================= Default TCP Receive Window (RWIN) = 5840 RWIN Scaling (RFC1323) = 2 bits (scale factor of 4) Unscaled TCP Receive Window = 1460 For optimum performance, consider changing RWIN to a multiple of MSS. Other values for RWIN that might work well with your current MTU/MSS: 510784 (MSS x 46 * scale factor of 8) 255392 (MSS x 46 * scale factor of 4) 127696 (MSS x 46 * scale factor of 2) 63848 (MSS x 46) ============================================= My MSS=1388. I have set my router to use an MTU=1428 (following recommendations of my ISP: http://support.metronet.co.uk/adsl/tips/optimising.html ) Is there anything I need to do with respect to setting a larger RWIN? I don't remember ever tweaking my Gentoo TCP/IP settings. If it is advisable to increase the RWIN buffer, how do I do this in Gentoo? -- Regards, Mick -- gentoo-user@gentoo.org mailing list
