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Why is Downloading faster then Uploading ?

    Question

  • On my home network (Ethernet LAN) i move files around a lot - i also do so on work...

    what i find is that i'm able to download files faster then i'm able to upload 

    Download : 35 MB / s
    Upload: 8-10 MB / s

    Computers : mixed Win7pro and Win 2008
    Tuesday, January 05, 2010 9:55 AM

All replies

  • Talk to your ISP, they govern that. It isn't a Windows 7 problem

    By Marc Saltzman<!-- end stats -->

    Ever wondered about this?: Why can you experience download speeds up to 7 Megabits per second, while upload speeds might be maxxed out at 1 Megabit per second? We turned to Nortel’s David Hudson for an answer.


    Ever wondered about this?: Why can you experience download speeds up to, say, 7 Megabits per second, while upload speeds might be maxxed out at 1 Megabit per second? We turned to Nortel’s David Hudson for an answer.

     

    Generally speaking, users of the Internet consume more than they contribute, that is to say that they download more than they upload. Knowing this, Internet Service Providers, and the companies that develop network equipment, have designed networks to allocate more bandwidth to downloading from a few central sources than to uploading from many. This ensures that networks are able to support the tasks that users most often demand of them, such as viewing websites, watching videos or downloading music, with the best possible performance. It is feasible to create a network with equal download and upload speeds, but  that wasn’t the original expectation; for example, most users probably don’t want faster upload speeds if it means that it will slow down the time it takes to load a webpage.


    MCSE, MCSA, MCDST [If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.]
    Tuesday, January 05, 2010 5:20 PM
  • Just out of curiosity, are the speeds switched (upload faster than download) when you are transferring files across your network the other direction?




    If this was helpful, please vote. If it solves the issue, please click Propose as Answer. Thanks!
    Tuesday, January 05, 2010 10:27 PM
  • Your description is worthless. Try it this way.
    From Computer A (description) to Computer B (description) I can transfer files at this speed (specify) but from Computer B to Computer A I transfer files at this speed (specify).

    Regards Jens Peter Karlsen.
    Tuesday, January 05, 2010 11:42 PM
  • On my home network (Ethernet LAN) i move files around a lot - i also do so on work...

    what i find is that i'm able to download files faster then i'm able to upload 

    Download : 35 MB / s
    Upload: 8-10 MB / s

    Computers : mixed Win7pro and Win 2008

    LOL well lets see.... Montago did say home network ( ETHERNET LAN ) ummm AND moves files around ALOT.. hmmmmm .. lolol wasnt that hard to tell this is a LAN ONLY subject, NOT INTERNET. I see nothing it what Montago said as to Internet. lord help us lol
    Wednesday, January 06, 2010 6:57 AM
  • Just out of curiosity, are the speeds switched (upload faster than download) when you are transferring files across your network the other direction?




    If this was helpful, please vote. If it solves the issue, please click Propose as Answer. Thanks!
    Yes...

    If i Download from Server A i get speeds of ~ 40 MB/s (1Gbit LAN)  and am able to upload with about 8-15 MB/s

    however - if i RDP to the Server and Download the files from my computer, the speed is about 30-40 MB/s and likewise 10-15 MB/s Upload


    I think its a fault in the Windows transfer protocol - maybe more ACK-NAK traffic is needed when uploading ???
    Wednesday, January 06, 2010 8:04 AM
  • bump...
    Wednesday, January 20, 2010 11:26 AM
  • Hi Montago,
    Try temporarily disabling your security software and test. It may be scanning all network traffic. You may need to adjust some settings for your LAN traffic.
    Wednesday, January 20, 2010 12:19 PM
  • thanks, will try... although i doubt it will change anything...
    Wednesday, January 20, 2010 12:32 PM
  • Montago,
    Just pushed (uploaded) a 600mb file from an old P4 machine (ATA drives)to a new C2D (SATA II drive) on a gig network at a rate of ~40mb/sec. This could be a hardware limitation from the switch or router with it's store and forward processing capability combined with the hardware limitations of the host and recipient computers. 15 seconds for a DVD size file seems ok to me.
    Wednesday, January 20, 2010 12:58 PM
  • what OS is installed on the two computers, and what LAN Hardware is involved ?

    thanks.
    Wednesday, January 20, 2010 1:00 PM
  • Montago,
    Win 7 RC/XPpro dual boot on P4, Vista Business on C2D, Rosewill RC410 switch, Verizon FIOS MI424 router/ gateway. All computers are connected via the 8 port gigabit switch, DHCP, Cat6a cables, 3 50ft, 2 25ft, basic gig network adapters. 
    Performed the transfer with Win 7 RC to Vista Business.
    Wednesday, January 20, 2010 3:00 PM