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62 posts

Master Geek

#269758 6-Apr-2020 15:33
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Anyone else noticed that Bigpipe / Spark appears to be shaping traffic on port 22 (SSH)?




I have a server in Europe which I often download files from using SFTP/SSH (port 22).  Never had a problem until I noticed yesterday that my download speed appeared to be capped at 4mbps.  Trying the same file over HTTP and it came down at about 200mbps (more in line with what I'd expect).




This morning, everything seemed to be back to normal but it seems to throttled again at the time of writing this (15:30).




I'm on the Elite plan.

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9795 posts

Uber Geek

Lifetime subscriber

  #2455963 6-Apr-2020 15:42
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i would highly doubt its something on bigpipe end



7664 posts

Uber Geek


  #2455964 6-Apr-2020 15:45
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Hi, I am on Spark and currently got multiple SSH tunnels open to various work end points both within NZ and Au, and still managing to do file transfers realisticly close to my connection limit and way north of 4Mb/s. There is a lot of water, networks and complexity between our shores and  Europe, would that might be a better place to start.


Spark reps on here previously have stated, they do not shape any traffic.




62 posts

Master Geek

  #2455967 6-Apr-2020 15:51
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Thanks guys - yeah, I've been a very happy Bigpipe subscriber for over 3 years now and have never had anything like this so I am also skeptical.   Can't think of what else it could be tbh.

896 posts

Ultimate Geek


  #2455978 6-Apr-2020 16:02
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Could it be the remote end shaping things?

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Uber Geek

Lifetime subscriber

  #2455980 6-Apr-2020 16:06
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Please read this:


SSH traffic is different than HTTP(S) traffic. It really isn't designed to be speedy. Investigate using rsync to speed things up also.

4567 posts

Uber Geek


  #2456013 6-Apr-2020 16:25
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Queue @Talkiet telling you that "Spark don't shape traffic. period."

4445 posts

Uber Geek


  #2456031 6-Apr-2020 16:28
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Queue @Talkeit telling you that "Spark don't shape traffic. period."



LOL, the relevant message has already been linked above so there's nothing to add (except that since that post it could be made clear that Bigpipe and Skinny share fixed BB performance/config/capacity with Spark so it's just as valid - but I think most people here know that)


Cheers - N





Please note all comments are the product of my own brain and don't necessarily represent the position or opinions of my employer, previous employers, colleagues, friends or pets.


738 posts

Ultimate Geek

Spark NZ

  #2456034 6-Apr-2020 16:32
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We do not shape traffic :)


I really don't want to speculate on where in the network path the issue could be (apart from saying there is no shaping/traffic restrictions on the Spark/Bigpipe network) and to say that when many parts of Europe went into lockdown concerns were raised as to how it would impact their respective networks. 

My views are my own, and may not necessarily represent those of my employer.

62 posts

Master Geek

#2456061 6-Apr-2020 16:51
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Thanks for the replies, everyone.  After further investigation, I can confirm that whatever is happening in my specific case is NOT related to the ISP.  




No idea what the issue is, but it is most likely something on my desktop since when I download via SSH on my linux server (which is what I usually do anyway), I'm getting max throughput.  




Now, let's never speak of this thread again.  🤣

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