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This is a discussion on Bandwidth Bottlenecking between DropBox and Cox?? within the Cox forums, part of the Cable Company Forums category; For last couple weeks, I have noticed very slow download between Dropbox ( dl.getdropbox.com using HTTP download ) and Cox ... Cable Television Discussion Forums satellite forum diretv forum sling slingbox sony viseo lcd hdtv rca digital cable tv forums 722k 922 slingloaded comcast satellite network time warner azbox fta forum suddenlink coolsat cable dvr receiver 5000 622 HR21 HR20 722 hdtv dbmvtechs hd cable jobs MultiChannel iptv uverse 722 522 622 CE coax Comcast hulu boxee mse
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Thread: Bandwidth Bottlenecking between DropBox and Cox??

  1. 10-18-2009 09:46 PM #1
    minman
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    Arrow Bandwidth Bottlenecking between DropBox and Cox??

    For last couple weeks, I have noticed very slow download between Dropbox ( dl.getdropbox.com using HTTP download ) and Cox in Hampton Roads during hours between 6pm and 11pm, the transfer are being seen average of 14KBps.. During non-peak hours, it go as fast as 6mbps easily.

    I was able verify this with 5 locations as of 10:05PM EST:

    Cox Business (Portsmouth VA) – 14 KBps
    Cox Business (Chesapeake VA) – 15 KBps
    Cox Residential (Chesapeake VA) – 12 KBps
    Verizon Fiso Business (Virginia Beach, VA) – 7mbps
    Cincinnati Bell DSL (Cincinnati OH) – 508KBps

    Is there bandwidth issue at Cox office during these hours?? I am not seeing bandwidth issue at most websites, but dropbox is very noticeable.

    These files being downloaded are Flash videos (between 150MB to 400MB in size each) embedded in my website.

    Traceroute as of 10:52PM

    From Cox:
    Tracing route to dl.getdropbox.com [75.101.129.115]
    over a maximum of 30 hops:

    1 10 ms 9 ms 9 ms 10.2.204.1
    2 9 ms 7 ms 7 ms 68.10.8.57
    3 9 ms 11 ms 7 ms 172.22.48.65
    4 7 ms 9 ms 10 ms 172.22.48.37
    5 17 ms 13 ms 12 ms 172.22.48.1
    6 8 ms 8 ms 7 ms nrfkdsrj02-ge703.rd.hr.cox.net [68.10.14.17]
    7 18 ms 13 ms 15 ms ashbbbrj01-ae0.0.r2.as.cox.net [68.1.0.220]
    8 * * 168 ms xe-6-1.r00.asbnva02.us.bb.gin.ntt.net [129.250.3.29]
    9 151 ms * 168 ms te-8-4.r05.asbnva01.us.ce.gin.ntt.net [168.143.228.38]
    10 24 ms 24 ms 21 ms 72.21.197.40
    11 24 ms 22 ms 22 ms 72.21.222.155
    12 * * * Request timed out.

    From VZ Fios:
    Tracing route to dl.getdropbox.com [75.101.129.115]
    over a maximum of 30 hops:

    1 1 ms 1 ms 1 ms 192.168.0.1
    2 3 ms 4 ms 4 ms 74.98.***.* (local gateway)
    3 5 ms 4 ms 4 ms G11-0-117.NRFLVA-LCR-01.verizon-gni.net [130.81.129.172]
    4 12 ms 12 ms 12 ms so-12-3-0-0.LCC1-RES-BB-RTR1-RE1.verizon-gni.net [130.81.29.40]
    5 12 ms 12 ms 12 ms 0.so-4-1-0.xl3.iad8.alter.net [152.63.30.2]
    6 10 ms 12 ms 12 ms 0.xe-8-0-0.br1.iad8.alter.net [152.63.41.229]
    7 11 ms 12 ms 12 ms te-10-1-0.edge1.washington4.level3.net [4.68.63.245]
    8 12 ms 12 ms 12 ms ae-3-89.edge1.washington1.level3.net [4.68.17.144]
    9 12 ms 14 ms 12 ms amazoncom.edge1.washington1.level3.net [4.79.20.38]
    10 13 ms 12 ms 12 ms 72.21.199.32
    11 14 ms 14 ms 14 ms 72.21.222.139
    12 * * * Request timed out.
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  2. 10-18-2009 09:47 PM #2
    mike
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    traceroutes don't look bad. if you are concerned with hops 8 and 9, thats simply icmp deprioritization - there is no packet loss nor is there any bad ping times. the only difference is cox is peering with ntt to get to dropbox, v* is peering with alter.net and l(3). different paths for different folks.

    with those locations with cox - are all of them geographically close? if so, there is a possibility that you could be sharing the same node - or at least have a fiber path in common. you may want to pm the hfc mac address to CoxTech1 or if its the cbs accounts, possibly bbeesley (he's out of vegas, but he does deal with cbs on this forum). they may be able to give you insight into nodal congestion/downstream carrier utilization.
    on a side note, have you run speedtests at these locations during the slowdown? do you see an download performance hit across the board, or simply to dropbox? if its strictly dropbox, there may be other issues happening that will need to be addressed if needed.
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  3. 10-18-2009 09:47 PM #3
    minman
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    have tested from 3 different cox account with same result.. The speedtest is in acceptable range.. Just that the dropbox is crawling slow compared to 2 other ISP at same time frame. In case you were wondering how I tested this, I remote desktop into few servers I works with to compare results after I heard back from Dropbox tech support telling me they are not seeing any performance hits on their end.

    I am suspecting the performance hit is occuring between Cox and NTT hops
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  4. 10-24-2009 10:19 AM #4
    bill40502
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    i had this same problem
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