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wh0beme

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#164451 10-Feb-2015 09:50
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I've previously had no issue with speeds from international sources on Voda cable unlimited 100/10 (1MB/s+ per thread which for an NZ ISP is frankly fantastic)

Starting yesterday, I've been getting roughly 60KB/s per thread to anywhere in the world (doesn't matter what protocol or port, HTTP/FTP/P2P) apart from NZ/Aus. The more threads there are past a certain point, the lower the KB/s figure goes down. This is both off peak AND on peak, all protocols.
Restarted computer/router/modem and nothing. A speedtest on speedtest.net to NZ servers shows 100/10, which is correct, and likewise with Australian servers. (yes I'm using ethernet and nobody else is using the net)
Anything outside of NZ/Aus has been heavily throttled. We used to pull 1MB/s per thread, and now it's down to more than 15x less.
On a well seeded Ubuntu ISO, the peerlist starts pulling 1MB/s to closer sources, but within a few seconds they all drop down to EXACTLY the same speed each. There's hundreds of peers all downloading at exactly the same KB/s (go figure):



We don't abuse the service and download TBs a month or anything like that, this just appeared out of nowhere. Definitely not a problem on my end, my config has not changed at all and have rebooted everything in question.

There's no reason for anything to have changed yet something is clearly amiss - a massive reduction in speed per thread overnight is not normal.

Anyone else have the same? What gives? Have also logged a fault on their website.

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gbwelly
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  #1233981 10-Feb-2015 10:31
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Yep... don't expect to get a clear response to this question by the end of the thread.










johnr
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  #1233982 10-Feb-2015 10:34
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What about local speeds?

wh0beme

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  #1233984 10-Feb-2015 10:39
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Ubuntu from the Citylink NZ mirror saturates the line (12.5MB/s @ 10 threads)
Ubuntu from Exetel AU mirror same
Ubuntu from us.releases.ubuntu.com = jumping between 1.1MB/s and 1.3MB/s (10 threads) which I've grabbed a release from in the past and had it max line speed.
Ubuntu from nl.archive.ubuntu.com = exactly the same as US mirror (same jumping behaviour)



freitasm
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  #1233989 10-Feb-2015 10:50
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Have you tested using the Vodafone speedtest to make sure local traffic is ok?




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wh0beme

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  #1233991 10-Feb-2015 10:56
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freitasm: Have you tested using the Vodafone speedtest to make sure local traffic is ok?

Yes, local traffic (all 3 official voda speed test servers + speedtest.net) and Aus traffic (speedtest.net, ubuntu mirror) are fine.

Lias
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  #1233994 10-Feb-2015 10:57
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Interesting.. I fired up a Centos ISO on a Vodafone cable connection, a spark DSL, and SNAP business fibre to compare.

Spark DSL hit linemax (1.5MB/s) within 30 seconds, and stayed there.
Snap Fibre hit 4-5MB/s within 30 seconds, and climbed gradually up to 6-7MB/s.
Cable got off to a hiss and a roar at 3.5MB/s, but within 60-90 seconds every thread plummeted in speed to 0.1kb/s or outright disconnected, sat like that for ~8-9 minutes then shot up to 4MB/s and climbed gradually to around 6MB/s

Looks like something is indeed rotten in the state of Denmark, changes to their traffic shaping afoot?







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quickymart
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  #1234029 10-Feb-2015 11:48
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I thought cable traffic wasn't shaped?

johnr
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  #1234046 10-Feb-2015 12:18
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quickymart: I thought cable traffic wasn't shaped?


it's not

mattbush
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  #1234088 10-Feb-2015 13:19
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My 100/10 is shaped for weeks now....

 

Last Result:
Download Speed: 25293 kbps (3161.6 KB/sec transfer rate)
Upload Speed: 9869 kbps (1233.6 KB/sec transfer rate)
2/9/2015, 8:23:11 PM

Chrizvi
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  #1234097 10-Feb-2015 13:28
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mattbush: My 100/10 is shaped for weeks now....

Last Result:
Download Speed: 25293 kbps (3161.6 KB/sec transfer rate)
Upload Speed: 9869 kbps (1233.6 KB/sec transfer rate)
2/9/2015, 8:23:11 PM


which destination for that result?

kiwikiwi
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  #1234098 10-Feb-2015 13:33
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mattbush: My 100/10 is shaped for weeks now....

Last Result:
Download Speed: 25293 kbps (3161.6 KB/sec transfer rate)
Upload Speed: 9869 kbps (1233.6 KB/sec transfer rate)
2/9/2015, 8:23:11 PM

That really looks like you're on the wrong plan more then anything.





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  #1234112 10-Feb-2015 13:59
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Just did the same test with another ISO, exactly the same results, on cable the speed starts ramping up, all threads then drop off for several minutes, before coming back to life.

If it's not deliberate shaping, then something definitely appears to be a bit broken.

Firmware changes pushed out to the cable modems? Firmware/configuration change further back in the network?






I'm a geek, a gamer, a dad, a Quic user, and an IT Professional. I have a full rack home lab, size 15 feet, an epic beard and Asperger's. I'm a bit of a Cypherpunk, who believes information wants to be free and the Net interprets censorship as damage and routes around it. If you use my Quic signup you can also use the code R570394EKGIZ8 for free setup. Opinions are my own and not the views of my employer.


johnr
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  #1234175 10-Feb-2015 14:36
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mattbush: My 100/10 is shaped for weeks now....


Last Result:
Download Speed: 25293 kbps (3161.6 KB/sec transfer rate)
Upload Speed: 9869 kbps (1233.6 KB/sec transfer rate)
2/9/2015, 8:23:11 PM


That is not traffic shaping

yitz
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  #1234178 10-Feb-2015 14:44
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Lias: ...configuration change further back in the network?
Traceroute shows change in upstream transit provider, telstraglobal.net to North America seems to have been wound down.

Doesn't the unlimited data plan have a P2P policy www.vodafone.co.nz/p2ppolicy ... I wouldn't be surprised if there is less international capacity now because xDSL customers are getting moved over to ex-ihug platform and wholesale international transit customer volumes are probably down too. Ironically this happens the month after they got 'best international performance' from Truenet.

johnr
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  #1234204 10-Feb-2015 15:28
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@wh0beme can you do a trace route and post the results so we can look into this further

John

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