Need help calculating optimum RWIN.

[BoardBabe]

I need help from a 1337 network expert. I would like to know my optimum XP Pro SP2 settings for my ADSL2+ line.

Calculating correct RWIN/GlobalMaxTcpWindowSize/TcpWindowSize, DefaultTTL etc.

Line specs/test results:

Testmachine @ 802.11g 108 mBit MIMO

• Connection type: ADSL2+
  
• Cable length to DSLAM: 1350m (0,4mm)
  
• Syncrate/downstream (read from modem): 16300
  
• Actual maximum donload speed: 1,74 mB/sec*
  
• Actual avg. download speed: 1,68 mB/sec*
  
• Max packet size before fragmentation: 1472**
  
• MTU: 1500 (1472+28)
  
• Latency: min: 23ms, max: 30ms, avg.: 25ms*** (TTL: 251)
  

*Tested with DU meter and 2 running 700 mB downloads from ISP 100mbit ftp.

**ping www.uio.no -f -l 1472 (.no & no other bw. load)

***ping www.uio.no -n 100 (.no & no other bw. load)

Tweaks are to be implemented during UA installation.

Edited December 7, 2005 by BoardBabe