I'm not sure these are related (I'm seeing zero packet loss to Slack from 
Chicago on Cogent) but Slack's definitely broken. Seemed to have been a 
cascading failure, a colleague of mine complained over IRC he got booted from 
his, then I got booted from one Slack team, then another.

> On Nov 23, 2015, at 1:49 PM, Justin Oeder via Outages <[email protected]> 
> wrote:
> 
> Slack, which is hosted with Amazon is currently down.
> 
> 
> 
> From: "Grant Ridder via Outages" <[email protected]>
> To: "Mike Lyon" <[email protected]>
> Cc: [email protected], "Tomoc Field" <[email protected]>
> Sent: Monday, November 23, 2015 2:43:57 PM
> Subject: Re: [outages] packet loss to us-east-1
> 
> Seeing this issue again
>   4. AS46375 50.ae4.gw.pao1.sonic.net <http://50.ae4.gw.pao1.sonic.net/>      
>              0.0%    10   15.5  23.2   2.9  89.3  28.6
>   5. AS8121  199.127.107.189                            0.0%    10   64.2  
> 26.6   3.7  85.7  28.2
>   6. AS8121  xe0-0-0-7.core2.sv8.layer42.net 
> <http://xe0-0-0-7.core2.sv8.layer42.net/>            0.0%    10   66.6  24.8  
>  3.5 102.1  33.4
>   7. AS16509 72.21.221.176                              0.0%    10   64.2  
> 26.9   3.0  99.1  32.4
>   8. AS???   54.240.243.50                              0.0%    10  147.4 
> 115.9  88.2 176.9  27.9
>   9. AS???   54.240.243.61                             90.0%    10   78.4  
> 78.4  78.4  78.4   0.0
>  10. AS???   54.239.42.38                              10.0%    10  130.4 
> 106.9  71.8 167.6  31.8
>  11. AS16509 54.239.108.120                            70.0%    10  178.9 
> 125.2  90.0 178.9  47.2
>  12. AS16509 54.239.111.235                            20.0%    10  143.1  
> 99.0  70.8 158.1  34.7
>  13. AS16509 54.239.111.230                            70.0%    10   89.5  
> 93.9  88.7 103.5   8.3
> 
> -Grant
> 
> On Fri, Nov 20, 2015 at 5:27 PM, Mike Lyon <[email protected] 
> <mailto:[email protected]>> wrote:
> Hmmm,
> It shows as if it is getting there but look at that jump from 15ms to 85ms on 
> hops 7 and 8:
> 
> traceroute amazon.com <http://amazon.com/>
> traceroute: Warning: amazon.com <http://amazon.com/> has multiple addresses; 
> using 176.32.103.205
> 
> traceroute to amazon.com <http://amazon.com/> (176.32.103.205), 64 hops max, 
> 52 byte packets
> 
>  1  192.168.20.1 (192.168.20.1)  0.708 ms  0.395 ms  0.328 ms
> 
>  2  162.250.208.141 (162.250.208.141)  0.671 ms  0.622 ms  0.588 ms
> 
>  3  10.25.0.1 (10.25.0.1)  1.985 ms  4.165 ms  21.626 ms
> 
>  4  10.20.0.1 (10.20.0.1)  7.852 ms  7.626 ms  5.214 ms
> 
>  5  10.0.0.1 (10.0.0.1)  8.041 ms  17.839 ms  34.089 ms
> 
>  6  69.36.226.193 (69.36.226.193)  5.477 ms  14.228 ms  20.203 ms
> 
>  7  xe0-2-0-4.core4.scl.layer42.net <http://xe0-2-0-4.core4.scl.layer42.net/> 
> (65.50.198.237)  15.153 ms  13.475 ms  8.706 ms
> 
>  8  205.251.229.145 (205.251.229.145)  85.231 ms
> 
>     54.240.242.108 (54.240.242.108)  96.157 ms
> 
>     205.251.229.145 (205.251.229.145)  175.633 ms
> 
>  9  54.240.242.141 (54.240.242.141)  100.007 ms  234.602 ms
> 
>     54.240.242.121 (54.240.242.121)  94.263 ms
> 
> 10  54.239.109.102 (54.239.109.102)  110.966 ms
> 
>     54.239.109.136 (54.239.109.136)  123.322 ms
> 
>     54.239.110.50 (54.239.110.50)  105.029 ms
> 
> 11  54.239.109.143 (54.239.109.143)  84.239 ms
> 
>     54.239.110.23 (54.239.110.23)  91.540 ms
> 
>     54.239.110.57 (54.239.110.57)  86.620 ms
> 
> 12  54.239.109.143 (54.239.109.143)  91.382 ms
> 
>     205.251.245.168 (205.251.245.168)  87.930 ms
> 
>     54.239.109.143 (54.239.109.143)  76.879 ms
> 
> 13  * 205.251.245.168 (205.251.245.168)  90.780 ms  96.386 ms
> 
> 
> On Fri, Nov 20, 2015 at 5:24 PM, Grant Ridder <[email protected] 
> <mailto:[email protected]>> wrote:
> Looks like they solved it by routing around layer42 and go via cogent.  That 
> in itself is a bad idea :/
>  4. AS46375 50.ae4.gw.pao1.sonic.net <http://50.ae4.gw.pao1.sonic.net/>       
>              1.2%    81    3.5  12.0   2.6  91.0  16.2
>  5. AS174   te0-0-0-15.ccr21.sjc04.atlas.cogentco.com 
> <http://te0-0-0-15.ccr21.sjc04.atlas.cogentco.com/>   6.2%    81    6.6  10.5 
>   3.2  79.9  11.7
>  6. AS174   be2016.ccr22.sfo01.atlas.cogentco.com 
> <http://be2016.ccr22.sfo01.atlas.cogentco.com/>       3.7%    81   15.3  14.6 
>   4.2  98.9  16.3
>  7. AS174   be2133.ccr22.mci01.atlas.cogentco.com 
> <http://be2133.ccr22.mci01.atlas.cogentco.com/>       4.9%    81   47.7  50.4 
>  41.8 113.6  13.3
>  8. AS174   be2157.ccr42.ord01.atlas.cogentco.com 
> <http://be2157.ccr42.ord01.atlas.cogentco.com/>      70.0%    81   54.1  67.2 
>  53.9 140.2  21.3
>  9. AS174   be2217.ccr41.ord03.atlas.cogentco.com 
> <http://be2217.ccr41.ord03.atlas.cogentco.com/>      33.3%    81   57.3  63.6 
>  54.3 158.4  17.0
> 10. AS174   ntt.ord03.atlas.cogentco.com 
> <http://ntt.ord03.atlas.cogentco.com/>               66.2%    81   56.9  72.0 
>  56.5 126.8  20.6
> 11. AS2914  ae-3.amazon.chcgil09.us.bb.gin.ntt.net 
> <http://ae-3.amazon.chcgil09.us.bb.gin.ntt.net/>     34.6%    81   61.5  61.8 
>  55.9  89.7   8.1
> 
> -Grant
> 
> On Fri, Nov 20, 2015 at 5:14 PM, Mike Lyon <[email protected] 
> <mailto:[email protected]>> wrote:
> Oh thank god! I was seeing it too but wasn't sure if was Layer42 or Amazon 
> that was having the issue...
> Thanks,
> Mike
> 
> 
> On Fri, Nov 20, 2015 at 5:09 PM, Grant Ridder via Outages 
> <[email protected] <mailto:[email protected]>> wrote:
> Saw that, thanks!
> -Grant
> 
> On Fri, Nov 20, 2015 at 4:49 PM, Tomoc Field <[email protected] 
> <mailto:[email protected]>> wrote:
> Yes. 70%+ packet loss from 7065 to all Amazon services as far as I can tell. 
> This was experienced via both layer42 and XO, but Amazon appears to have 
> resolved their issues at this time.
> 
> -Tomoc
> 
> 
> On Fri, Nov 20, 2015 at 04:34:42PM -0800, Grant Ridder via Outages wrote:
> > Anyone else seeing packet log into us-east-1?
> >
> > 54.240.243.121 (AS16509) is Amazon
> >
> > MTR report excerpt
> >   4. AS46375 50.ae4.gw.pao1.sonic.net <http://50.ae4.gw.pao1.sonic.net/>    
> >              0.0%    10    2.5
> > 8.3 2.5 37.5 10.7 <tel:8.3%20%20%202.5%20%2037.5%20%2010.7>
> >   5. AS8121  199.127.107.189                          0.0%    10    3.8
> > 7.9   3.4  34.9   9.5
> >   6. AS8121  xe0-0-0-7.core2.sv8.layer42.net 
> > <http://xe0-0-0-7.core2.sv8.layer42.net/>          0.0%    10    3.9
> > 6.0   3.4  17.6   4.6
> >   7. AS16509 72.21.221.176                            0.0%    10    4.6
> > 5.2   3.0  15.5   3.6
> >   8. AS???   54.240.243.110                           0.0%    10   98.6
> >  96.4  86.9 104.4   6.2
> >   9. AS???   54.240.243.121                          90.0%    10   85.7
> >  85.7  85.7  85.7   0.0
> >  10. AS16509 205.251.229.104                         20.0%    10   87.5
> >  85.2  82.5  87.8   2.0
> >  11. AS???   54.239.42.29                            70.0%    10   85.0
> >  84.3  82.8  85.2   1.0
> >  12. AS16509 54.239.109.238                          30.0%    10   87.4
> >  96.8  87.4 105.2   6.5
> >      AS16509 54.239.110.16
> >
> >
> > -Grant
> 
> > _______________________________________________
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> 
> 
> 
> -- 
> Mike Lyon
> 408-621-4826 <tel:408-621-4826>
> [email protected] <mailto:[email protected]>
> http://www.linkedin.com/in/mlyon <http://www.linkedin.com/in/mlyon>
> 
> 
> 
> 
> 
> 
> 
> -- 
> Mike Lyon
> 408-621-4826 <tel:408-621-4826>
> [email protected] <mailto:[email protected]>
> http://www.linkedin.com/in/mlyon <http://www.linkedin.com/in/mlyon>
> 
> 
> 
> 
> 
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