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Master Geek


#146788 29-May-2014 10:11
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HI there

I have just started to backup my computer (iMac) to an online backup service (Backblaze). Whilst it performs the initial backup it is naturally maxing out my upload speed (although this is configurable).

However, this upload seems to be restricting (slowing) my download. Using Backblaze's own bandwidth test my available download bandwidth from their server reduces from 4.2Mbps to 1.2 Mbps when the backup upload is turned on.

Backblaze say this should not be the case and that some ISPs might impose their own download restrictions in relation to upload.

Telecom say this is not the case.

Can anyone shed some light on what might be happening here?




My EPL football websites: Get the results but hide the score of your team at HidetheScore.net. Compare league positions with wage bills at RealPremierLeague.net.


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I fix stuff!
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  #1055704 29-May-2014 10:15
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Yes it will, as it will cause packet loss for your reply packets, which tells TCP how quickly it should send the data to you.

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  #1055705 29-May-2014 10:16
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Your downloads also require upload bandwidth for things like requests and confirmations.  If your upload is saturated, it will more than likely affect downloads and general web browsing.




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