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Thread: please help tweak my connection using sierra 875

  1. #1
    Junior Member aziskusuma's Avatar
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    please help tweak my connection using sierra 875

    SpeedGuide.net TCP Analyzer Results
    Tested on: 10.15.2007 08:52
    IP address: 221.132.xxx.xx

    TCP options string: 02040582010303000101080a000000000000000001010402
    MSS: 1410
    MTU: 1450
    TCP Window: 65535 (NOT multiple of MSS)
    RWIN Scaling: 0
    Unscaled RWIN : 65535
    Reccomended RWINs: 64860, 129720, 259440, 518880
    BDP limit (200ms): 2621kbps (328KBytes/s)
    BDP limit (500ms): 1049kbps (131KBytes/s)
    MTU Discovery: ON
    TTL: 45
    Timestamps: ON
    SACKs: ON
    IP ToS: 01011100 (92)
    Precedence: 010 (immediate)
    Delay: 1 (low delay)
    Throughput: 1 (low throughput)
    Reliability: 1 (low reliability)
    Cost: 0 (normal cost)
    Check bit: 0 (correct)
    DiffServ: No valid DiffServ equivalent (010111)

    :::.. testmy.net test results ..:::
    Download Connection is:: 1133 Kbps about 1.13 Mbps (tested with 2992 kB)
    Download Speed is:: 138 kB/s
    Upload Connection is:: 45 Kbps about 0 Mbps (tested with 97 kB)
    Upload Speed is:: 5 kB/s
    Tested From:: http://testmy.net (Main)
    Test Time:: 2007/10/15 - 6:12am
    D-Validation Link:: http://testmy.net/stats/id-2IJ15GQ37
    U-Validation Link:: http://testmy.net/stats/id-KLD34MWQT
    User Agent:: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SIMBAR={61B78667-C003-42E7-8857-36B89C41C043}; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; Embedded Web Browser from: http://bsalsa.com/; .NET CLR 2.0.50727) [!]



    WEB100 Kernel Variables:
    Client: localhost/127.0.0.1
    CurMSS: 1410
    X_Rcvbuf: 103424
    X_Sndbuf: 103424
    AckPktsIn: 522
    AckPktsOut: 0
    BytesRetrans: 0
    CongAvoid: 0
    CongestionOverCount: 0
    CongestionSignals: 0
    CountRTT: 517
    CurCwnd: 66270
    CurRTO: 840
    CurRwinRcvd: 65535
    CurRwinSent: 16304
    CurSsthresh: 2147483647
    DSACKDups: 0
    DataBytesIn: 0
    DataBytesOut: 1490370
    DataPktsIn: 0
    DataPktsOut: 1057
    DupAcksIn: 0
    ECNEnabled: 0
    FastRetran: 0
    MaxCwnd: 66270
    MaxMSS: 1410
    MaxRTO: 980
    MaxRTT: 580
    MaxRwinRcvd: 65535
    MaxRwinSent: 16304
    MaxSsthresh: 0
    MinMSS: 1410
    MinRTO: 560
    MinRTT: 310
    MinRwinRcvd: 65535
    MinRwinSent: 16304
    NagleEnabled: 1
    OtherReductions: 0
    PktsIn: 522
    PktsOut: 1057
    PktsRetrans: 0
    RcvWinScale: 7
    SACKEnabled: 3
    SACKsRcvd: 0
    SendStall: 0
    SlowStart: 45
    SampleRTT: 420
    SmoothedRTT: 430
    SndWinScale: 0
    SndLimTimeRwin: 7384704
    SndLimTimeCwnd: 2616356
    SndLimTimeSender: 9938
    SndLimTransRwin: 1
    SndLimTransCwnd: 1
    SndLimTransSender: 1
    SndLimBytesRwin: 1304250
    SndLimBytesCwnd: 186120
    SndLimBytesSender: 0
    SubsequentTimeouts: 0
    SumRTT: 190780
    Timeouts: 0
    TimestampsEnabled: 0
    WinScaleRcvd: 0
    WinScaleSent: 7
    DupAcksOut: 0
    StartTimeUsec: 260246
    Duration: 10009963
    c2sData: 2
    c2sAck: 2
    s2cData: 9
    s2cAck: 3
    half_duplex: 0
    link: 100
    congestion: 0
    bad_cable: 0
    mismatch: 0
    spd: 1.19
    bw: 29.15
    loss: 0.000001000
    avgrtt: 369.01
    waitsec: 0.00
    timesec: 10.00
    order: 0.0000
    rwintime: 0.7377
    sendtime: 0.0010
    cwndtime: 0.2613
    rwin: 0.5000
    swin: 0.7891
    cwin: 0.5056
    rttsec: 0.369014
    Sndbuf: 103424
    aspd: 0.00000
    CWND-Limited: 67.30

    The theoretical network limit is 29.15 Mbps
    The NDT server has a 50.0 KByte buffer which limits the throughput to 2.13 Mbps
    Your PC/Workstation has a 63.0 KByte buffer which limits the throughput to 1.35 Mbps
    The network based flow control limits the throughput to 1.37 Mbps

    I'm from Indonesia using connection wireless-broadband HSDPA by telkomflash. Please help me to tweak my connection. Thanks very much before...

  2. #2
    Elite Member trogers's Avatar
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    What download and upload speeds did you pay your ISP to give you?

  3. #3
    Junior Member aziskusuma's Avatar
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    In my country, HSDPA using technology 3,5G
    May i know best software to tweak my connection?

  4. #4
    Elite Member trogers's Avatar
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    Quote Originally Posted by aziskusuma View Post
    In my country, HSDPA using technology 3,5G
    May i know best software to tweak my connection?
    You can download and run TCP Optimizer. The link to it is next to the link to TCP Analyzer.

    First test speed at this link using the test server in Jakarta and post your results:

    http://www.speedtest.net/

  5. #5
    Junior Member aziskusuma's Avatar
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    I try to test at speedtest.net, but the speedtest did not work. I try to test at mini speedtest i got value DL: 1655kbps and UL:322

    :::.. testmy.net test results ..:::
    Download Connection is:: 1155 Kbps about 1.16 Mbps (tested with 2992 kB)
    Download Speed is:: 141 kB/s
    Upload Connection is:: 285 Kbps about 0.3 Mbps (tested with 579 kB)
    Upload Speed is:: 35 kB/s

  6. #6
    Elite Member trogers's Avatar
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    Try the following with TCP Optimizer:

    General Settings tab:
    Custom settings - check
    Modify All Network Adapters - check
    network adapter selection - your NIC
    MTU 1500
    TTL - 64
    TCP Receive Window - leave blank
    MTU Discovery - Yes
    Black Hole Detect - No
    Selective Acks - Yes
    Max Duplicate ACKs - 2
    TCP 1323 Options:
    Windows Scaling - uncheck
    Timestamps - uncheck

    Advanced Settings tab:
    Max Connections per Server - 10
    Max Connections per 1.0 Server - 20
    LocalPriority - 1
    Host Priority - 1
    DNSPriority - 1
    NetbtPriority - 1
    Lan Browsing speedup - optimized
    QoS: NonBestEffortLimit - 0
    ToS: DisableUserTOSSetting - 0
    ToS: DefaultTOSValue - 80
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768
    Then select "Apply Changes" and reboot to take effect

    After reboot, post a new TCP Analyzer report. We want to check if your MTU increases.

  7. #7
    Junior Member aziskusuma's Avatar
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    SpeedGuide.net TCP Analyzer Results
    Tested on: 10.16.2007 07:11
    IP address: 221.132.xxx.xxx

    TCP options string: 0204058201010402
    MSS: 1410
    MTU: 1450
    TCP Window: 65535 (NOT multiple of MSS)
    RWIN Scaling: 0
    Unscaled RWIN : 65535
    Reccomended RWINs: 64860, 129720, 259440, 518880
    BDP limit (200ms): 2621kbps (328KBytes/s)
    BDP limit (500ms): 1049kbps (131KBytes/s)
    MTU Discovery: ON
    TTL: 46
    Timestamps: OFF
    SACKs: ON
    IP ToS: 01010000 (80)
    Precedence: 010 (immediate)
    Delay: 1 (low delay)
    Throughput: 0 (normal throughput)
    Reliability: 0 (normal reliability)
    Cost: 0 (normal cost)
    Check bit: 0 (correct)
    DiffServ: AF22 010100 (20) - Assured Forwarding class 2, medium drop precedence (RFC 2597).

  8. #8
    Elite Member trogers's Avatar
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    Try the following with TCP Optimizer:

    General Settings tab:
    Custom settings - check
    Modify All Network Adapters - check
    network adapter selection - your NIC
    MTU 1450
    TTL - 64
    TCP Receive Window - 129720
    MTU Discovery - Yes
    Black Hole Detect - No
    Selective Acks - Yes
    Max Duplicate ACKs - 2
    TCP 1323 Options:
    Windows Scaling - checked
    Timestamps - uncheck

    Advanced Settings tab:
    Max Connections per Server - 10
    Max Connections per 1.0 Server - 20
    LocalPriority - 1
    Host Priority - 1
    DNSPriority - 1
    NetbtPriority - 1
    Lan Browsing speedup - optimized
    QoS: NonBestEffortLimit - 0
    ToS: DisableUserTOSSetting - 0
    ToS: DefaultTOSValue - 80
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768
    Then select "Apply Changes" and reboot to take effect

  9. #9
    Junior Member aziskusuma's Avatar
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    SpeedGuide.net TCP Analyzer Results
    Tested on: 10.16.2007 07:44
    IP address: 221.132.xxx.x

    TCP options string: 0204058201010402
    MSS: 1410
    MTU: 1450
    TCP Window: 65535 (NOT multiple of MSS)
    RWIN Scaling: 0
    Unscaled RWIN : 65535
    Reccomended RWINs: 64860, 129720, 259440, 518880
    BDP limit (200ms): 2621kbps (328KBytes/s)
    BDP limit (500ms): 1049kbps (131KBytes/s)
    MTU Discovery: ON
    TTL: 46
    Timestamps: OFF
    SACKs: ON
    IP ToS: 01010000 (80)
    Precedence: 010 (immediate)
    Delay: 1 (low delay)
    Throughput: 0 (normal throughput)
    Reliability: 0 (normal reliability)
    Cost: 0 (normal cost)
    Check bit: 0 (correct)
    DiffServ: AF22 010100 (20) - Assured Forwarding class 2, medium drop precedence (RFC 2597).

  10. #10
    Elite Member trogers's Avatar
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    Quote Originally Posted by aziskusuma View Post
    SpeedGuide.net TCP Analyzer Results
    Tested on: 10.16.2007 07:44
    IP address: 221.132.xxx.x

    TCP options string: 0204058201010402
    MSS: 1410
    MTU: 1450
    TCP Window: 65535 (NOT multiple of MSS)
    RWIN Scaling: 0
    Unscaled RWIN : 65535
    Reccomended RWINs: 64860, 129720, 259440, 518880
    BDP limit (200ms): 2621kbps (328KBytes/s)
    BDP limit (500ms): 1049kbps (131KBytes/s)
    MTU Discovery: ON
    TTL: 46
    Timestamps: OFF
    SACKs: ON
    IP ToS: 01010000 (80)
    Precedence: 010 (immediate)
    Delay: 1 (low delay)
    Throughput: 0 (normal throughput)
    Reliability: 0 (normal reliability)
    Cost: 0 (normal cost)
    Check bit: 0 (correct)
    DiffServ: AF22 010100 (20) - Assured Forwarding class 2, medium drop precedence (RFC 2597).
    Rerun the settings I gave and make sure TCP Window is set to 129720 before clicking apply.

  11. #11
    Junior Member aziskusuma's Avatar
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    TCP options string = 020405b4010303000101080a000000000000000001010402

    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 kbps (328 KBytes/s) @ 200ms
    Your TCP Window limits you to: 1049 kbps (131 KBytes/s) @ 500ms

    MTU Discovery (RFC1191) = ON

    Time to live left = 46 hops
    TTL value is ok.

    Timestamps (RFC1323) = ON
    Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.
    Selective Acknowledgements (RFC2018) = ON

    IP type of service field (RFC1349) = 01010000 (80)
    Precedence (priority) = 010 (immediate)
    Delay = 1 (low delay)
    Throughput = 0 (normal throughput)
    Reliability = 0 (normal reliability)
    Cost = 0 (normal cost)
    Check bit = 0 (correct, 8th checking bit must be zero)

    DiffServ (RFC 2474) =

  12. #12
    Elite Member trogers's Avatar
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    Your MTU has increased to 1500.

    Try the following with TCP Optimizer:

    General Settings tab:
    Custom settings - check
    Modify All Network Adapters - check
    network adapter selection - your NIC
    MTU 1500
    TTL - 64
    TCP Receive Window - 128480
    MTU Discovery - Yes
    Black Hole Detect - No
    Selective Acks - Yes
    Max Duplicate ACKs - 2
    TCP 1323 Options:
    Windows Scaling - checked
    Timestamps - uncheck

    Advanced Settings tab:
    Max Connections per Server - 10
    Max Connections per 1.0 Server - 20
    LocalPriority - 1
    Host Priority - 1
    DNSPriority - 1
    NetbtPriority - 1
    Lan Browsing speedup - optimized
    QoS: NonBestEffortLimit - 0
    ToS: DisableUserTOSSetting - 0
    ToS: DefaultTOSValue - 80
    MaxNegativeCacheTtl - 0
    NetFailureCacheTime - 0
    NegativeSOACache Time - 0
    LAN Request Buffer Size - 32768
    Then select "Apply Changes" and reboot to take effect

  13. #13

    please help tweak my connection using huawei E220

    SpeedGuide.net TCP Analyzer Results
    Tested on: 04.10.2009 15:27
    IP address: 114.121.xx.xxx
    Client OS: Windows XP

    TCP options string: 020405140103030101010402
    MSS: 1300
    MTU: 1340
    TCP Window: 128480 (NOT multiple of MSS)
    RWIN Scaling: 1 bits (2^1=2)
    Unscaled RWIN : 64240
    Recommended RWINs: 65000, 130000, 260000, 520000, 1040000
    BDP limit (200ms): 5139kbps (642KBytes/s)
    BDP limit (500ms): 2056kbps (257KBytes/s)
    MTU Discovery: ON
    TTL: 39
    Timestamps: OFF
    SACKs: ON
    IP ToS: 00000000 (0)

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