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Thread: Please Help Tweak My EVDO conection

  1. #1
    Junior Member
    Join Date
    Jun 2011

    Please Help Tweak My EVDO conection

    hi ... im from indonesia ( just in case anyone came from as im) and i'm using Smart telecom ZTE AC2726 broadband USB Modem EVDO rev A... they ( Smart my provider) tell me that i'm capabel to max my speed Up to 3.1 Mb, but i m only receiveing only 500kbps , can anyone help me Please to tweak my MTU or any of u can help me to set it best performance TCP Analyzer Results
    Tested on: 06.02.2011 17:44
    IP address:
    Client OS: Windows XP

    TCP options string: 020405500103030401010402
    MSS: 1360
    MTU: 1400
    TCP Window: 1044480 (multiple of MSS)
    RWIN Scaling: 4 bits (2^4=16)
    Unscaled RWIN : 65280
    Recommended RWINs: 65280, 130560, 261120, 522240, 1044480
    BDP limit (200ms): 41779kbps (5222KBytes/s)
    BDP limit (500ms): 16712kbps (2089KBytes/s)
    MTU Discovery: OFF
    TTL: 50
    Timestamps: OFF
    SACKs: ON
    IP ToS: 00000000 (0)

    Please Help me

  2. #2
    Administrator Philip's Avatar
    Join Date
    May 1999
    Jacksonville, Florida
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    Welcome to SG

    Your RWIN value seems too high for that type of connection, I'd use no more than 261120.
    As far as the MTU, you can try the Optimizer's "MTU" tab to find the Max MTU available to you, it is dependent on your ISP and the type of connection. It is not as important as the RWIN value.
    Ultimately, it depends on your ISP's feed, so optimizing your end of the connection is just a part of the solution.

    You will probably get more responses and suggestions in the Tweaking forum.

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