[outages] Level3 (globally?) impacted (IPv4 only)

[Giorgio Bonfiglio]

Traffic seems to be just looping around in multiple locations in Europe, 
but I'm seeing complaints from all over the planet on Twitter.

It's apparently affecting IPv4 only, v6 works just fine.

This is a traceroute from London to US:


Start: 2020-08-30T10:45:00+0000
HOST: VGW-UK Loss%   Snt   Last   Avg  Best  Wrst StDev
   1. [redacted]
   2. AS3356 212.187.139.201                                        
70.0% 10    1.7   1.5   1.3   1.7   0.2
   3. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
   4. AS3356   ae-1-51.ear3.London2.Level3.net (4.69.143.198)         
90.0%    10    3.2   3.2   3.2   3.2   0.0
   5. AS3356   ae-22-3108.ebr1.London2.Level3.net (4.69.143.197)      
60.0%    10    2.0   3.1   1.6   6.8   2.5
   6. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
   7. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
   8. AS3356   ae-1-51.ear3.London2.Level3.net (4.69.143.198)         
90.0%    10    1.5   1.5   1.5   1.5   0.0
   9. AS3356   ae-22-3108.ebr1.London2.Level3.net (4.69.143.197)      
30.0%    10    1.9   2.0   1.5   2.4   0.3
  10. AS3356   ae1.ae1.ear5.London2.level3.net (4.69.201.114)         
90.0%    10    1.5   1.5   1.5   1.5   0.0
  11. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
  12. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
  13. AS3356   ae-22-3108.ebr1.London2.Level3.net (4.69.143.197)      
80.0%    10    3.7   2.7   1.6   3.7   1.5
  14. AS3356   ae1.ae1.ear5.London2.level3.net (4.69.201.114)         
90.0%    10    1.7   1.7   1.7   1.7   0.0
  15. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
  16. AS??? ???                                                    100.0 
10    0.0   0.0   0.0   0.0   0.0
  17. AS??? ???                                                    100.0 
9    0.0   0.0   0.0   0.0   0.0
  18. AS3356   ae1.ae1.ear5.London2.level3.net (4.69.201.114)         
87.5%     8    1.6   1.6   1.6   1.6   0.0
  19. AS3356   ae-17-3111.ebr1.London2.Level3.net (4.69.201.113)      
25.0%     8   26.7   7.4   2.3  26.7   9.5
  20. AS??? ???                                                    100.0 
8    0.0   0.0   0.0   0.0   0.0

For comparison, IPv6 same route:


Start: 2020-08-30T10:45:07+0000
HOST: VGW-UK Loss%   Snt   Last   Avg  Best  Wrst StDev
   1. [redacted]
   2. AS3356   8-2-12.ear2.London2.Level3.net 
(2001:1900:5:2:2::3c01)        0.0%    10    1.5   1.6   1.4 2.7   0.4
   3. AS3356   lo-22-v6.edge2.NewYork6.Level3.net 
(2001:1900::3:212)        40.0%    10   84.0  82.9  76.3  89.3 4.4
   4. AS3356   CenturyLink-level3-NewYork6.Level3.net 
(2001:1900:4:3::822)  40.0%    10   69.3  75.4  69.2  91.2   8.5
   5. AS3910 2001:428::205:171:3:151 40.0%    10   97.5  97.6  97.4  
97.9   0.2
   6. AS3910 2001:428:1c02::2 40.0%    10  101.2 104.4 101.2 120.1   7.7
   7. AS??? ??? 100.0    10    0.0   0.0   0.0   0.0   0.0

Giorgio



-- 
Giorgio Bonfiglio

www: grg.pw
email: me at grg.pw
mobile: +44 7716 604314 / +39 393 1049073