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Thread: New Rig Needs Optimization

  1. #1

    Question New Rig Needs Optimization

    New rig need assistance to optimize connection speeds, and thanks in advance.
    Connection advertised as 10mb up and 1mb down

    Notes: Read the Analyzer FAQ if the above is not your IP address.

    TCP options string = 020405b401010402

    MTU = 1500
    MTU is fully optimized for broadband.

    MSS = 1460
    Maximum useful data in each packet = 1460, which equals MSS.

    Default TCP Receive Window (RWIN) = 65535
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled TCP Receive Window = 65535

    Note: TCP 1323 Options need to be enabled for RWIN over 2^16 (65535). Windows 9x might also need the MS Vtcp386 fix.
    For optimum performance, consider changing RWIN to a multiple of MSS.
    Other RWIN values that might work well with your current MTU/MSS:
    513920 (MSS x 44 * scale factor of 8)
    256960 (MSS x 44 * scale factor of 4)
    128480 (MSS x 44 * scale factor of 2)
    64240 (MSS x 44)

    bandwidth * delay product (Note this is not a speed test):

    Your TCP Window limits you to: 2621.4 kbps (327.675 KBytes/s) @ 200ms
    Your TCP Window limits you to: 1048.56 kbps (131.07 KBytes/s) @ 500ms

    MTU Discovery (RFC1191) = ON

    Time to live left = 117 hops
    TTL value is ok.

    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON

    IP type of service field (RFC1349) = 00000000 (0)




    31046041 connections tested since 03.10.2001.
    Analyzer version: 1.08 - last updated 02.28.2006.


    Seattle speed test
    Download Speed: 5998 kbps (749.8 KB/sec transfer rate)
    Upload Speed: 472 kbps (59 KB/sec transfer rate)

    San Francisco
    Download Speed: 4851 kbps (606.4 KB/sec transfer rate)
    Upload Speed: 377 kbps (47.1 KB/sec transfer rate)
    Los Angeles
    Download Speed: 4743 kbps (592.9 KB/sec transfer rate)
    Upload Speed: 406 kbps (50.8 KB/sec transfer rate)
    Dallas Texas
    Download Speed: 4644 kbps (580.5 KB/sec transfer rate)
    Upload Speed: 405 kbps (50.6 KB/sec transfer rate)

    Chicago IL
    Download Speed: 13420 kbps (1677.5 KB/sec transfer rate)
    Upload Speed: 581 kbps (72.6 KB/sec transfer rate)

    Atlanta GA
    Download Speed: 4601 kbps (575.1 KB/sec transfer rate)
    Upload Speed: 407 kbps (50.9 KB/sec transfer rate)

    New York City NY
    Download Speed: 14970 kbps (1871.3 KB/sec transfer rate)
    Upload Speed: 821 kbps (102.6 KB/sec transfer rate)

    Washington DC
    Download Speed: 13175 kbps (1646.9 KB/sec transfer rate)
    Upload Speed: 760 kbps (95 KB/sec transfer rate)

  2. #2
    Moderator YeOldeStonecat's Avatar
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    Run the SG TCP Optimizer...optimal settings...adjust the slide bar a bit..I'd start so it has your RWIN at 256960. Try on either side of it...see which is best for you.
    MORNING WOOD Lumber Company
    Guinness for Strength!!!

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