[outages] route-views.org routing loop?

Hugo Slabbert hslabbert at stargate.ca
Mon Jun 27 13:00:15 EDT 2016


On Mon 2016-Jun-27 09:42:42 -0700, Peter Kranz via Outages <outages at outages.org> wrote:
>Other people seeing routing loops to route-views.routeviews.org? Seem
>sporadic.. Also periods of high packet loss. Similar behavior to
>route-views2 and route-views3
>

Seeing fishiness here as well; A and AAAA records bouncing around (was 
64.151.82.184 initially with no AAAA; then 128.223.51.103 & 
2001:468:d01:33::80df:3367).  Not sure if they're round-robining, but the 
single/dual-stack in returned records was odd.

64.151.82.184 went through HE via the SIX then Zayo, but died somewhere in 
ServePath before it got to UOregon:

$ traceroute 64.151.82.184
traceroute to 64.151.82.184 (64.151.82.184), 30 hops max, 60 byte packets
 1  gateway (10.255.1.254)  0.290 ms  0.266 ms  0.259 ms
 2  10.255.0.1 (10.255.0.1)  0.680 ms  0.659 ms  0.657 ms
 3  ae0-757.cr0.bby0.as19171.net (208.65.235.233)  0.988 ms  0.990 ms  0.978 ms
 4  v523.core1.yvr1.he.net (65.49.89.9)  50.988 ms  50.899 ms  51.073 ms
 5  100ge4-2.core1.sea1.he.net (184.105.64.109)  4.405 ms  4.510 ms  4.510 ms
 6  six.zayo.com (206.81.80.19)  4.823 ms  4.644 ms  4.611 ms
 7  ae27.cs1.sea1.us.eth.zayo.com (64.125.29.0)  21.718 ms  21.917 ms  21.910 ms
 8  ae0.cs2.sea1.us.eth.zayo.com (64.125.29.47)  32.747 ms  28.681 ms  32.713 ms
 9  ae3.cs2.sjc2.us.eth.zayo.com (64.125.29.40)  26.116 ms  54.101 ms  54.052 ms
10  ae27.cr2.sjc2.us.zip.zayo.com (64.125.30.233)  23.037 ms  23.177 ms  23.156 ms
11  ae3.er2.sjc2.us.zip.zayo.com (64.125.28.57)  22.164 ms  22.137 ms  22.155 ms
12  te-4-1.border-core1.sfo2.servepath.net (64.124.196.6)  22.981 ms  22.920 ms  23.018 ms
13  vl22.access17.sfo2.servepath.com (208.96.31.18)  23.602 ms  23.480 ms  23.494 ms
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

128.223.51.103 and 2001:468:d01:33::80df:3367 go through Nero @ the SIX, 
then to UONET:

                                        My traceroute  [v0.86]
sg-ws-hugol (::)                                                              Mon Jun 27 09:56:20 2016
Keys:  Help   Display mode   Restart statistics   Order of fields   quit
                                               Packets               Pings
 Host                                        Loss%   Snt Drop   Last   Avg  Best  Wrst StDev Jttr Javg
 1. 2607:4100:1::1                           34.5%   416  143    0.7   0.6   0.5   1.0   0.0  0.1  0.1
 2. 2607:4100:0:4::1                          0.0%   416    0    1.1   1.1   0.8  10.4   0.7  0.0  0.4
 3. v6-seattleix.nero.net                     7.7%   416   32    9.3   9.2   8.9  11.9   0.1  0.0  0.1
 4. eugn-core2-gw.nero.net                    2.9%   416   12   11.8  11.7  11.5  15.7   0.2  0.1  0.2
 5. eugn-car1-gw.nero.net                     0.0%   416    0   11.7  11.5  10.9  49.7   3.4  0.5  1.0
 6. uoregon2.nero.net                         2.2%   416    9   11.7  11.8  11.5  17.1   0.4  0.7  0.4
 7. vl-2-gw.uoregon.edu                       6.7%   415   28   12.4 503.2  11.3 4425. 972.9  0.9 47.8
 8. route-views.routeviews.org               70.6%   415  293   84.0 19375  12.3 16697 31799 22.4 4257

Telnet to 2001:468:d01:33::80df:3367 as dog slow a few minutes ago but did 
eventually connect.  It's starting to be quicker on connect and initial 
banners now.

-- 
Hugo



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