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Thread: What should my RWIN be set at?

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  1. #1
    New Member
    Join Date
    Apr 2002
    Location
    Jacksonville, Illinois
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    16

    What should my RWIN be set at?

    TCP options string = 020405b40103030001010402

    MTU = 1500
    MTU is fully optimized for broadband.

    MSS = 1460
    Maximum useful data in each packet = 1460, which is equal to MSS.

    Default Receive Window (RWIN) = 65535
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled Receive Window = 65535
    Note: Under Windows 9x, if you have RWIN set to any other value, and the Analyzer reports 65535 you might need to install the MS Vtcp386 fix.
    For optimum performance, consider changing RWIN to a multiple of MSS.
    Other values for RWIN 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:
    Your RcvWindow limits you to: 2621.4 kbps (327.675 KBytes/s) @ 200ms
    Your RcvWindow limits you to: 1048.56 kbps (131.07 KBytes/s) @ 500ms

    MTU Discovery (RFC1191) = ON

    Time to live left = 51 hops
    TTL value is ok.

    Timestamps (RFC1323) = OFF

    Selective Acknowledgements (RFC2018) = ON

    IP type of service field (RFC1349)= 00000000


    Chris

  2. #2
    New Member
    Join Date
    Apr 2002
    Location
    Jacksonville, Illinois
    Posts
    16
    According to dslr.net (i know there is bad blood between the 2 sites) they recommend i use one betweet 14600 and 37960?

    http://monitor.dslreports.com/tweak/...n98&via=normal

    Chris

  3. #3
    Dr Tweak mnosteele52's Avatar
    Join Date
    Jul 2001
    Location
    Chesapeake, VA
    Posts
    11,912
    Please post this over in the Tweaking forum. If you answer a few questions it will be easier to help you. Who is your ISP? What are your caps from them? What kind of speeds are you getting with the settings you have posted? What OS? and What type of connection is it?

    P.S. Please read "My Tips" in my sig and find one of Lobo's threads (not hard to find) and read his "Help Thread".

    Good luck and please post back.

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