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Topic # 203179 20-Sep-2016 18:22
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For the last couple of hours I have noted extremely poor (slow, patchy) network performance to my Amazon EC2 instances, US-West N.California.  Instances themselves are running totally fine by the look of it.

 

Anybody else noticing this?  

 

 





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'That VDSL Cat'
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  Reply # 1636837 20-Sep-2016 20:42
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Seems pretty inconsistent and dodgy here, Haven't tried these tests on a clean line though. (VF DSL)

 





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  Reply # 1636847 20-Sep-2016 20:47
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@hio77 what's that testing tool? It looks really useful!





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  Reply # 1636849 20-Sep-2016 20:48
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timmmay:

 

hio77 what's that testing tool? It looks really useful!

 

 

https://cloudharmony.com/speedtest





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  Reply # 1636859 20-Sep-2016 21:03
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Just found that site myself.

 

 

 

 

(NB: Cable, Christchurch)





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  Reply # 1636861 20-Sep-2016 21:07
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sleemanj:

 

Just found that site myself.

 

 

 

 

 

(NB: Cable, Christchurch)

 

 

 

 

failed? that's not a positive sign.





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  Reply # 1636862 20-Sep-2016 21:07
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  Reply # 1636863 20-Sep-2016 21:10
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michaelmurfy:

 

Are you using Vodafone's DNS servers?

 

 

Yes

 

$ cat /etc/resolv.conf

 

nameserver 203.97.78.43
nameserver 203.97.78.44

 

 





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  Reply # 1636864 20-Sep-2016 21:14
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Cool test, but not sure I trust it. It's reporting 460ms latency to EC2 in US-West. I have an EC2 server in US-West and windows ping tells me I'm getting 160ms latency.





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  Reply # 1636865 20-Sep-2016 21:15
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Here's my results if you need another sample: 

 

Click to see full size

 

 





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  Reply # 1636866 20-Sep-2016 21:17
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timmmay:

 

Cool test, but not sure I trust it. It's reporting 460ms latency to EC2 in US-West. I have an EC2 server in US-West and windows ping tells me I'm getting 160ms latency.

 

 

 

 

I agree on this too.

 

 

 

their CDN tests seem about right however..





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  Reply # 1636892 20-Sep-2016 21:45
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It seems to have started going full tilt again now.

 

I noticed the routes changed slightly too forat least the instance I was looking at mainly.

 

Was

 

...

 

be10-2.bgnzftc02.akl.vf.net.nz (203.109.130.41)

 

*
v422.core1.sjc1.he.net (216.218.254.57) 
10ge7-2.core1.sjc2.he.net (72.52.92.118) 
equinix02-sfo5.amazon.com (206.223.116.236) 

 

...

 

Now

 

...

 

be10-2.bgnzftc02.akl.vf.net.nz (203.109.130.41)
*
v422.core1.sjc1.he.net (216.218.254.57) 
100ge1-1.core1.sjc2.he.net (184.105.213.94)
amazon-02-as16509.10gigabitethernet18.switch3.sjc2.he.net (216.218.193.42)

 

...

 

 

 

 

 

 





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  Reply # 1636931 20-Sep-2016 22:29
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Spoke too soon, we are back to 10ge7 route and go slow mode.

 

 





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  Reply # 1636972 21-Sep-2016 01:27
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Have opened ticket with VF about it and posted to AWS Support Forum also.

 

The route for us-west-1 as it leaves VF in San Jose seems to be unstable, as above, on one request it will work fine and on the next it will drag along at less than 10KB/s.

 

I spun up a test instance on us-west-2 and it seems fine (different route), it's just us-west-1.

 

Current results from that site...

 





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  Reply # 1638073 21-Sep-2016 10:00
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michaelmurfy:

 

Are you using Vodafone's DNS servers?

 

 

 

 

VF are advising their cable customers to use Google DNS...




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  Reply # 1638076 21-Sep-2016 10:07
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Seems... seems... to be working better today, at least a few hundred KB/s up to a couple MB/s instead of a few KB/s.  Given I'm only running against instances up to m3, that's probably within the realms of reason.

 

Hopefully this post hasn't jinxed it.

 

 





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