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Thread: New location, very low ADSL speeds

  1. #1
    Junior Member
    Join Date
    Mar 2007
    Posts
    12

    New location, very low ADSL speeds

    Hey guys!

    First time posting anything here, but have been lurking for tips for some time.

    I just recently moved to South Florida and landed in an area where Bellsouth can only give me, for the time being, a DSL Lite connection. This means 256/128 ADLS max for about a month or so, I need help trying to get the most out of these speeds.

    What I have connected:
    1 Windows XP-SP2 PC with 2GB RAM, P4-3.2GHz CPU, main board with intergrated Realtek fast ethernet set to auto for Link speed/Duplex mode, 1 Westell 6100 modem/router.

    Some test results follow:

    SpeedGuide.net Speed Test Results
    218 kbps down (~0.22 Mbps, 27 KB/s)↓
    104 kbps up (~0.1 Mbps, 13 KB/s)↑
    500 KB downloaded in 18.828 seconds
    100 KB uploaded in 7.875 seconds
    Tested on: 2007.03.20 09:41 EDT
    Tested from: speedguide.net
    Test Link: http://www.speedguide.net/speedtest/...t=YNCK7ZUP384L
    Provider: mia.bellsouth.net
    Location: Miami, FL, US
    ---------------------------------------------------------------
    WEB100 Enabled Statistics:
    Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
    running 10s outbound test (client to server) . . . . . 111.84Kb/s
    running 10s inbound test (server to client) . . . . . . 213.69kb/s
    ------ Client System Details ------
    OS data: Name = Windows XP, Architecture = x86, Version = 5.1
    Java data: Vendor = Sun Microsystems Inc., Version = 1.5.0_11
    ------ Web100 Detailed Analysis ------
    Cable modem/DSL/T1 link found.
    Link set to Full Duplex mode
    No network congestion discovered.
    Good network cable(s) found
    Normal duplex operation found.
    Web100 reports the Round trip time = 418.15 msec; the Packet size = 1452 Bytes; and
    No packet loss was observed.
    This connection is receiver limited 91.75% of the time.
    Increasing the the client's receive buffer (11.0 KB) will improve performance
    This connection is network limited 8.21% of the time.
    Web100 reports TCP negotiated the optional Performance Settings to:
    RFC 2018 Selective Acknowledgment: ON
    RFC 896 Nagle Algorithm: ON
    RFC 3168 Explicit Congestion Notification: OFF
    RFC 1323 Time Stamping: OFF
    RFC 1323 Window Scaling: OFF
    Information: Network Middlebox is modifying MSS variable
    Server IP addresses are preserved End-to-End
    Information: Network Address Translation (NAT) box is modifying the Client's IP address [XX.XXX.XX.XXX]
    ----------------------------------------------------------------------
    WEB100 Kernel Variables:
    Client: localhost/127.0.0.1
    AckPktsIn: 195
    AckPktsOut: 0
    BytesRetrans: 0
    CongAvoid: 0
    CongestionOverCount: 0
    CongestionSignals: 0
    CountRTT: 195
    CurCwnd: 13068
    CurMSS: 1452
    CurRTO: 650
    CurRwinRcvd: 11616
    CurRwinSent: 5840
    CurSsthresh: 2147483647
    DSACKDups: 0
    DataBytesIn: 0
    DataBytesOut: 294756
    DataPktsIn: 0
    DataPktsOut: 203
    DupAcksIn: 0
    ECNEnabled: 0
    FastRetran: 0
    MaxCwnd: 13068
    MaxMSS: 1452
    MaxRTO: 900
    MaxRTT: 500
    MaxRwinRcvd: 11616
    MaxRwinSent: 5840
    MaxSsthresh: 0
    MinMSS: 1452
    MinRTO: 630
    MinRTT: 290
    MinRwinRcvd: 11616
    MinRwinSent: 5840
    NagleEnabled: 1
    OtherReductions: 0
    PktsIn: 195
    PktsOut: 203
    PktsRetrans: 0
    X_Rcvbuf: 107520
    RcvWinScale: 7
    SACKEnabled: 3
    SACKsRcvd: 0
    SendStall: 0
    SlowStart: 7
    SampleRTT: 430
    SmoothedRTT: 420
    X_Sndbuf: 107520
    SndWinScale: 0
    SndLimTimeRwin: 9914253
    SndLimTimeCwnd: 886998
    SndLimTimeSender: 2957
    SndLimTransRwin: 1
    SndLimTransCwnd: 1
    SndLimTransSender: 1
    SndLimBytesRwin: 274428
    SndLimBytesCwnd: 20328
    SndLimBytesSender: 0
    SubsequentTimeouts: 0
    SumRTT: 81540
    Timeouts: 0
    TimestampsEnabled: 0
    WinScaleRcvd: 0
    WinScaleSent: 7
    DupAcksOut: 0
    StartTimeUsec: 396334
    Duration: 10805996
    c2sData: 2
    c2sAck: 2
    s2cData: 2
    s2cAck: 2
    half_duplex: 0
    link: 100
    congestion: 0
    bad_cable: 0
    mismatch: 0
    spd: 0.00
    bw: 26.49
    loss: 0.000001000
    avgrtt: 418.15
    waitsec: 0.00
    timesec: 10.00
    order: 0.0000
    rwintime: 0.9176
    sendtime: 0.0003
    cwndtime: 0.0821
    rwin: 0.0886
    swin: 0.8203
    cwin: 0.0997
    rttsec: 0.418154
    Sndbuf: 107520
    aspd: 0.00000
    Checking for mismatch on uplink
    (speed > 50 [0>50], (xmitspeed < 5) [0.11<5]
    (rwintime > .9) [0.91>.9], (loss < .01) [1.0E<.01]
    Checking for excessive errors condition
    (loss/sec > .15) [1.0E>.15], (cwndtime > .6) [0.08>.6],
    (loss < .01) [1.0E<.01], (MaxSsthresh > 0) [0>0]
    Checking for 10 Mbps link
    (speed < 9.5) [0<9.5], (speed > 3.0) [0>3.0]
    (xmitspeed < 9.5) [0.11<9.5] (loss < .01) [1.0E<.01], (mylink > 0) [3.0>0]
    Checking for Wireless link
    (sendtime = 0) [3.0E=0], (speed < 5) [0<5]
    (Estimate > 50 [26.49>50], (Rwintime > 90) [0.91>.90]
    (RwinTrans/CwndTrans = 1) [1/1=1], (mylink > 0) [3.0>0]
    Checking for DSL/Cable Modem link
    (speed < 2) [0<2], (SndLimTransSender = 0) [1=0]
    (SendTime = 0) [3.0E-4=0], (mylink > 0) [3.0>0]
    Checking for half-duplex condition
    (rwintime > .95) [0.91>.95], (RwinTrans/sec > 30) [0.1>30],
    (SenderTrans/sec > 30) [0.1>30], OR (mylink <= 10) [3.0<=10]
    Checking for congestion
    (cwndtime > .02) [0.08>.02], (mismatch = 0) [0=0]
    (MaxSsthresh > 0) [0>0]
    estimate = 26.49 based on packet size = 11Kbits, RTT = 418.15msec, and loss = 1.0E-6
    The theoretical network limit is 26.49 Mbps
    The NDT server has a 105.0 KByte buffer which limits the throughput to 1.96 Mbps
    Your PC/Workstation has a 11.0 KByte buffer which limits the throughput to 0.21 Mbps
    The network based flow control limits the throughput to 0.23 Mbps
    Client Data reports link is 'T1', Client Acks report link is 'T1'
    Server Data reports link is 'T1', Server Acks report link is 'T1'
    -----------------------------------------------------------------
    It's hard to use the Internet at these speeds after being used to much higher ones.

    What do you think, any improvements possible with this connetion?

  2. #2
    Elite Member trogers's Avatar
    Join Date
    Jan 2005
    Location
    Bangkok, Thailand
    Posts
    12,323
    I would say your settings are already optimized when you can reach almost 90% of your given speed.

    Your RWIN of 11616 is an even multiple of 8 of 1452.

  3. #3
    Junior Member
    Join Date
    Mar 2007
    Posts
    12
    Thanks trogers!

    I needed some reassurance, I'll learn to live with these speeds for about a month...
    Last edited by Pilatus; 03-20-07 at 09:47 AM. Reason: spelling

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