[Outages-discussion] [outages] OVH IPv6 100% Package Loss in BHS (Canada DC)

Jim Popovitch jimpop at domainmail.org
Mon Sep 7 14:18:12 EDT 2020


On Mon, 2020-09-07 at 20:15 +0300, Vlad Dascalu via Outages wrote:
> Hey
> 
> Does anyone have a proper contact point for OVH NOC (besides noc at ovh.net ?)
> 
> Traceroute is showing 100% package loss on an IPv6 path in their AS, despite being routable from other ASes. I've reported it for hours but have no reaction from them. Is it normal?
> 
> ( Should we, as an Internet community, make a plan of attack regarding accountability on responsiveness for large ISP providers in the light of the recent Level3 incident? )
> 
> Anyway, below you can find the problematic traceroute.
> 
> # wget http://[2607:5300:60:6195::1]
> --2020-09-07 05:39:39--  http://[2607:5300:60:6195::1]/
> Connecting to [2607:5300:60:6195::1]:80... failed: Connection timed out.
> 
> # traceroute 2607:5300:60:6195::1
> traceroute to 2607:5300:60:6195::1 (2607:5300:60:6195::1), 30 hops max, 80 byte packets
>  1  * * *
>  2  xe-0-0-25-1.a01.atlnga05.us.bb.gin.ntt.net (2001:418:0:5000::622)  1.012 ms  1.012 ms  1.017 ms
>  3  ae-6.r23.atlnga05.us.bb.gin.ntt.net (2001:418:0:2000::22a)  0.635 ms ae-16.r22.atlnga05.us.bb.gin.ntt.net (2001:418:0:2000::20e)  1.004 ms ae-6.r23.atlnga05.us.bb.gin.ntt.net (2001:418:0:2000::22a)  0.646 ms
>  4  ae-9.r04.atlnga05.us.bb.gin.ntt.net (2001:418:0:2000::14d)  1.077 ms  1.079 ms  1.075 ms
>  5  2001:418:0:4000::a2 (2001:418:0:4000::a2)  1.052 ms *  1.036 ms
>  6  rest-bb1-v6.telia.net (2001:2000:3019:73::1)  16.727 ms ash-bb2-v6.telia.net (2001:2000:3019:74::1)  13.431 ms  13.480 ms
>  7  * * *
>  8  be100-1007.nwk-5-a9.nj.us (2607:5300::2)  17.916 ms * *
>  9  be102.bhs-g2-nc5.qc.ca (2607:5300::1ce)  27.694 ms  25.405 ms  29.696 ms
> 10  vl100.bhs-d2-a75.qc.ca (2607:5300::1cd)  27.329 ms  27.455 ms  24.885 ms
> 11  2001:41d0:0:50::6:80b (2001:41d0:0:50::6:80b)  24.216 ms  24.391 ms  24.381 ms
> 12  * * *
> 13  * * *
> 14  * * *
> 15  * * *
> 16  * * *
> 17  * * *
> 18  * * *
> 19  * * *
> 20  * * *
> 21  * * *
> 22  * * *
> 23  * * *
> 24  * * *
> 25  * * *
> 26  * * *
> 27  * * *
> 28  * * *
> 29  * * *
> 30  * * *
> 
> If it helps, I tested connectivity through 3 other continents and they work ok. Seems BGP resolves it to the right ASN but there is a routing dead-end inside the BHS router config.
> 
> Traceroute working from other locations, if it helps:
> 
> Germany (Hetzner):
> traceroute to ca1.beetux.com (2607:5300:60:6195::1), 30 hops max, 80 byte packets
>  1  ex9k1.dc7.fsn1.hetzner.com (2a01:4f8::a:16:a)  0.489 ms  0.478 ms  0.471 ms
>  2  core23.fsn1.hetzner.com (2a01:4f8:0:3::271)  0.464 ms core24.fsn1.hetzner.com (2a01:4f8:0:3::275)  0.434 ms core23.fsn1.hetzner.com (2a01:4f8:0:3::271)  0.447 ms
>  3  core5.fra.hetzner.com (2a01:4f8:0:3::33a)  16.099 ms core0.fra.hetzner.com (2a01:4f8:0:3::365)  5.107 ms core5.fra.hetzner.com (2a01:4f8:0:3::33a)  16.090 ms
>  4  core9.fra.hetzner.com (2a01:4f8:0:3::2fa)  5.438 ms  5.433 ms core8.fra.hetzner.com (2a01:4f8:0:3::33d)  5.409 ms
>  5  * * *
>  6  2001:41d0::257b (2001:41d0::257b)  6.192 ms * 2001:41d0::2579 (2001:41d0::2579)  5.766 ms
>  7  2001:41d0:aaaa:100::3 (2001:41d0:aaaa:100::3)  22.947 ms  16.798 ms  23.640 ms
>  8  * * 2001:41d0:aaaa:100::2 (2001:41d0:aaaa:100::2)  6.062 ms
>  9  * * *
> 10  * * *
> 11  * * *
> 12  be102.bhs-g1-nc5.qc.ca (2607:5300::1c6)  95.367 ms  96.431 ms be102.bhs-g2-nc5.qc.ca (2607:5300::1ce)  98.105 ms
> 13  vl100.bhs-d1-a75.qc.ca (2607:5300::1c3)  94.740 ms vl100.bhs-d2-a75.qc.ca (2607:5300::1cd)  95.564 ms  93.632 ms
> 14  2001:41d0:0:50::6:809 (2001:41d0:0:50::6:809)  94.240 ms 2001:41d0:0:50::6:80d (2001:41d0:0:50::6:80d)  91.366 ms  2001:41d0:0:50::6:80b (2001:41d0:0:50::6:80b)  94.574 ms
> 15  * * *
> 16  ca1.beetux.com (2607:5300:60:6195::1)  91.282 ms !X  92.104 ms !X  92.496 ms !X
> 
> Brazil:
> traceroute to ca1.beetux.com (2607:5300:60:6195::1), 30 hops max, 80 byte packet                s
>  1  hsrp.gcore.lu (2a03:90c0:186::3)  0.704 ms  0.457 ms  0.669 ms
>  2  2a03:90c0:180:1:253::226 (2a03:90c0:180:1:253::226)  0.695 ms  0.668 ms  0.6                44 ms
>  3  g-core-labs.sanpaolo7.spa.seabone.net (2001:41a8:5200:2::1e1)  0.734 ms 2001                :1498:1:bf1::1 (2001:1498:1:bf1::1)  0.723 ms  0.701 ms
>  4  mia15-loop0-v6.mia.seabone.net (2001:41a8:4020::f)  109.816 ms  110.905 ms 2                001:1498:1::100:138 (2001:1498:1::100:138)  134.126 ms
>  5  2001:1498:1::32:113 (2001:1498:1::32:113)  110.835 ms * 2001:1498:1::32:146                 (2001:1498:1::32:146)  131.040 ms
>  6  * * *
>  7  * be102.bhs-g1-nc5.qc.ca (2607:5300::1c6)  137.615 ms *
>  8  vl100.bhs-d1-a75.qc.ca (2607:5300::1c3)  137.997 ms * be102.bhs-g1-nc5.qc.ca                 (2607:5300::1c6)  133.250 ms
>  9  vl100.bhs-d1-a75.qc.ca (2607:5300::1c3)  132.065 ms 2001:41d0:0:50::6:80d (2                001:41d0:0:50::6:80d)  130.865 ms vl100.bhs-d1-a75.qc.ca (2607:5300::1c3)  132.1                55 ms
> 10  2001:41d0:0:50::6:80f (2001:41d0:0:50::6:80f)  132.028 ms * *
> 11  ca1.beetux.com (2607:5300:60:6195::1)  121.118 ms !X  132.094 ms !X  148.398 ms !X
> 
> Singapore:
> traceroute to ca1.beetux.com (2607:5300:60:6195::1), 30 hops max, 80 byte packets
>  1  2400:6180:0:d1:ffff:ffff:ffff:fff2 (2400:6180:0:d1:ffff:ffff:ffff:fff2)  0.659 ms  0.638 ms  0.619 ms
>  2  2604:a880:ffff:9::26a (2604:a880:ffff:9::26a)  0.960 ms 2604:a880:ffff:9::276 (2604:a880:ffff:9::276)  1.077 ms  1.057 ms
>  3  2604:a880:ffff:9::265 (2604:a880:ffff:9::265)  0.865 ms 2604:a880:ffff:9::271 (2604:a880:ffff:9::271)  0.884 ms 2604:a880:ffff:9::263 (2604:a880:ffff:9::263)  0.835 ms
>  4  2604:a880:ffff:9:0:1:0:6 (2604:a880:ffff:9:0:1:0:6)  1.148 ms 2604:a880:ffff:9:0:1:0:e (2604:a880:ffff:9:0:1:0:e)  1.135 ms 2604:a880:ffff:9:0:1:0:4 (2604:a880:ffff:9:0:1:0:4)  1.105 ms
>  5  2403:e800:508:100::1 (2403:e800:508:100::1)  1.205 ms * *
>  6  * * *
>  7  * * *
>  8  * * *
>  9  * * *
> 10  be100-104.pao-sv8-bb1-a9.ca.us (2607:5300::24)  168.764 ms  186.737 ms  186.765 ms
> 11  be100-1371.chi-5-a9.il.us (2607:5300::af)  211.537 ms be100-1370.chi-1-a9.il.us (2607:5300::59)  222.876 ms  204.043 ms
> 12  be103.bhs-g1-nc5.qc.ca (2607:5300::1c8)  408.785 ms  265.277 ms  230.064 ms
> 13  vl100.bhs-d1-a75.qc.ca (2607:5300::1c3)  230.897 ms  230.898 ms  230.683 ms
> 14  2001:41d0:0:50::6:809 (2001:41d0:0:50::6:809)  228.107 ms  246.649 ms 2001:41d0:0:50::6:80b (2001:41d0:0:50::6:80b)  250.099 ms
> 15  * * *
> 16  ca1.beetux.com (2607:5300:60:6195::1)  244.269 ms !X  230.678 ms !X  245.223 ms !X

First, your post is not worthy of the outages at outages.org list.  Please
use outages-discussion at outages.org in the future.  Real outages should
go to outages at outages.org BUT understand that posting there will ring
some peoples pagers/mobiles and other's inbox whistles. Please reserve 
outages at outages.org for real outages.

Secondly, OVH has never had perfect IPv6 routing, and generally doesn't
care what you or I have to say about their IPv6/routing choices.

Now, you need to know that traceroute is an old tool that no longer is
accurate for testing purposes. Use something like mtr instead.  Here's
an mtr to that IP from Atlanta:

~$ mtr -c 1 --report-wide --aslookup --show-ips 2607:5300:60:6195::1
Start: 2020-09-07T14:10:18-0400
HOST: work                                                                       Loss%   Snt   Last   Avg  Best  Wrst StDev
  1. AS???    ap-ipv6-1494-udp.vpn (fd10:10:23::1)                                0.0%     1   12.7  12.7  12.7  12.7   0.0
  2. AS???    ???                                                                100.0     1    0.0   0.0   0.0   0.0   0.0
  3. AS2914   xe-0-0-25-1.a01.atlnga05.us.bb.gin.ntt.net (2001:418:0:5000::622)   0.0%     1   12.9  12.9  12.9  12.9   0.0
  4. AS2914   ae-16.r22.atlnga05.us.bb.gin.ntt.net (2001:418:0:2000::20e)         0.0%     1   24.8  24.8  24.8  24.8   0.0
  5. AS2914   ae-9.r04.atlnga05.us.bb.gin.ntt.net (2001:418:0:2000::14d)          0.0%     1   13.3  13.3  13.3  13.3   0.0
  6. AS2914   2001:418:0:4000::a2                                                 0.0%     1   12.7  12.7  12.7  12.7   0.0
  7. AS1299   ash-bb2-v6.telia.net (2001:2000:3019:74::1)                         0.0%     1   26.3  26.3  26.3  26.3   0.0
  8. AS???    ???                                                                100.0     1    0.0   0.0   0.0   0.0   0.0
  9. AS16276  be100-1007.nwk-5-a9.nj.us (2607:5300::2)                            0.0%     1   32.3  32.3  32.3  32.3   0.0
 10. AS16276  be102.bhs-g2-nc5.qc.ca (2607:5300::1ce)                             0.0%     1   38.7  38.7  38.7  38.7   0.0
 11. AS16276  vl100.bhs-d2-a75.qc.ca (2607:5300::1cd)                             0.0%     1   36.5  36.5  36.5  36.5   0.0
 12. AS16276  2001:41d0:0:50::6:80f                                               0.0%     1   39.3  39.3  39.3  39.3   0.0
 13. AS16276  2001:41d0:0:50::2:404d                                              0.0%     1   37.1  37.1  37.1  37.1   0.0
 14. AS???    ???                                                                100.0     1    0.0   0.0   0.0   0.0   0.0

Here is a mtr from San Jose:
Start: 2020-09-07T18:14:07+0000
HOST: sjc                                                                        Loss%   Snt   Last   Avg  Best  Wrst StDev
  1. AS???    ???                                                                100.0     1    0.0   0.0   0.0   0.0   0.0
  2. AS20473  2001:19f0:ac00:2300::1                                              0.0%     1    0.5   0.5   0.5   0.5   0.0
  3. AS20473  2001:19f0:ac00::ada:15d                                             0.0%     1    1.1   1.1   1.1   1.1   0.0
  4. AS???    ???                                                                100.0     1    0.0   0.0   0.0   0.0   0.0
  5. AS174    2001:550:2:3::b6:1                                                  0.0%     1    1.1   1.1   1.1   1.1   0.0
  6. AS???    ???                                                                100.0     1    0.0   0.0   0.0   0.0   0.0
  7. AS174    be3142.ccr41.sjc03.atlas.cogentco.com (2001:550:0:1000::9a36:1c2)   0.0%     1    2.1   2.1   2.1   2.1   0.0
  8. AS16276  sjo-sv5-bb1-a9.ca.us (2607:5300::255e)                              0.0%     1    1.9   1.9   1.9   1.9   0.0
  9. AS16276  be100-1368.pao-sv8-bb1-a9.ca.us (2607:5300::26)                     0.0%     1   22.1  22.1  22.1  22.1   0.0
 10. AS16276  be100-1370.chi-1-a9.il.us (2607:5300::59)                           0.0%     1   49.6  49.6  49.6  49.6   0.0
 11. AS16276  be103.bhs-g1-nc5.qc.ca (2607:5300::1c8)                             0.0%     1   72.9  72.9  72.9  72.9   0.0
 12. AS16276  vl100.bhs-d1-a75.qc.ca (2607:5300::1c3)                             0.0%     1   72.1  72.1  72.1  72.1   0.0
 13. AS16276  2001:41d0:0:50::6:809                                               0.0%     1   71.8  71.8  71.8  71.8   0.0
 14. AS16276  2001:41d0:0:50::2:4049                                              0.0%     1   73.5  73.5  73.5  73.5   0.0
 15. AS16276  ca1.beetux.com (2607:5300:60:6195::1)                               0.0%     1   71.9  71.9  71.9  71.9   0.0

Those 2 mtr's show me that the drop is interestingly close to your host.
What do you get mtr'ing from your OVH host to 2604:180::9b07:1d5b
(RamNode's ATL IPv6 Test site) 

Good luck!

-Jim P.



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