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Thread: Upload way faster than download

  1. #1
    Junior Member
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    Upload way faster than download

    My ISP (RDSLink) recently switched me to a FTTH connection I connect to using the built-in WinXP PPPoE software. However the results are pretty weird:

    dslreports.com speed test result on 2006-03-31 15:24:39 EST:
    176 / 1105
    Your download speed : 176 kbps or 22 KB/sec.
    Your upload speed is much faster than down.. have you tweaked?
    Your upload speed : 1105 kbps or 138.1 KB/sec.

    (yes I have tweaked and followed the recommendations)

    On www.testmy.net:
    197 Kbps or 0.2 Mbps (24 kB/s) download
    1346 Kbps or 1.35 Mbps (164 kB/s) upload

    The results above are understated though. When downloading from the net I reach a reasonable 90KB/s speed. The real shocker is that on uploading (including torrents) I get upwards of 500KB/s (4Mbit/s)! (the advertised bandwidth of my ISP is 1024Kbit/s). It is interesting to note that the upload reaches speeds above 100KB/s only when there is no simultaneous download.

    I would appreciate your help, obviously not to decrease my upload speed , but to bring my download speed up to the mark.

    Details:
    Win XP PPPoE FTTH
    RDSLink 1024Kbit/s
    TCP options string = 020405a00103030001010402

    MTU = 1480
    MTU is optimized for Windows XP PPoE DSL broadband. If not, consider raising MTU to 1500 for optimal throughput.

    MSS = 1440
    MSS is optimized for Windows XP PPPoE DSL broadband. If not, consider raising your MTU value.

    Default TCP Receive Window (RWIN) = 25920
    RWIN Scaling (RFC1323) = 0 bits
    Unscaled TCP Receive Window = 25920

    RWIN is a multiple of MSS
    Other RWIN values that might work well with your current MTU/MSS:
    506880 (MSS x 44 * scale factor of 8)
    253440 (MSS x 44 * scale factor of 4)
    126720 (MSS x 44 * scale factor of 2)
    63360 (MSS x 44)

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

    Your TCP Window limits you to: 1036.8 kbps (129.6 KBytes/s) @ 200ms
    Your TCP Window limits you to: 414.72 kbps (51.84 KBytes/s) @ 500ms

    MTU Discovery (RFC1191) = ON

    Time to live left = 57 hops
    TTL value is ok.

    Timestamps (RFC1323) = OFF
    Selective Acknowledgements (RFC2018) = ON
    IP type of service field (RFC1349) = 00000000 (0)
    Last edited by Anisaz; 03-31-06 at 04:13 PM.

  2. #2
    fem the retarded rabbit mccoffee's Avatar
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    try leaving the dsl modem off for awile usually stuff that is phyiscal like modem/line that is odd. Leave it off for about 5 mins retest at a few sites still promblem call provider up that is odd.
    Comptia a+ n+

  3. #3
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    I have no modem. There is an optical fibre connection to a switch cabinet in my apartment building then ftp cable all the way to my network card.

  4. #4
    fem the retarded rabbit mccoffee's Avatar
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    that is odd though call the provider whoever sets that up it's something on the netowrk or phyiscal
    Comptia a+ n+

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