[outages] Cogent home page issues?

[Frank Bulk]

According to the status page (http://status.cogentco.com) there's nothing
going on, but from AS53347 our monitoring system hasn't been able to
reliably pull www.cogentco.com over IPv4 and IPv6 (since 8:15 pm Central)
nor ipv6.cogentco.com (same address as the AAAA for www.cogentco.com).  From
a jump box that's on NTT's network I was able to load www.cogentco.com over
IPv4, but I can't load it over IPv6 (get a "No data received") or it takes a
very long time.

Frank


>From AS53347:

root at nagios:/etc# tcptraceroute www.cogentco.com
Selected device eth0.3, address 96.31.0.5, port 55934 for outgoing packets
Tracing the path to www.cogentco.com (38.100.128.10) on TCP port 80 (www),
30 hops max
 1  router-core-inside.mtcnet.net (96.31.0.254)  0.256 ms  0.200 ms  0.200
ms
 2  sxct.sxcy.mtcnet.net (167.142.156.197)  0.188 ms  0.124 ms  0.120 ms
 3  premier.sxcy-mlx.fbnt.netins.net (173.215.60.5)  1.672 ms  1.667 ms
1.597 ms
 4  ins-db4-et-0-7-0-0.desm.netins.net (167.142.67.198)  7.933 ms  7.753 ms
7.659 ms
 5  ins-dc2-et-9-4.desm.netins.net (167.142.67.197)  7.899 ms  7.934 ms
7.958 ms
 6  te0-0-1-1.rcr11.dsm01.atlas.cogentco.com (38.104.184.25)  7.889 ms
7.965 ms  7.897 ms
 7  te0-2-0-0.ccr41.ord01.atlas.cogentco.com (154.54.46.237)  15.095 ms
15.216 ms  15.077 ms
 8  be2351.ccr21.cle04.atlas.cogentco.com (154.54.44.86)  23.406 ms  23.469
ms  23.863 ms
 9  be2485.mpd21.dca01.atlas.cogentco.com (154.54.30.18)  35.619 ms  36.489
ms  35.699 ms
10  * * *
11  * * *
12  * * cogentco.sg (38.100.128.10) [open] 47.213 ms
root at nagios:/etc# tcptraceroute6 www.cogentco.com
traceroute to cogentco.com (2001:550:1::cc01) from 2607:fe28:0:1000::5, port
80, from port 40783, 30 hops max, 60 bytes packets
 1  router-core.mtcnet.net (2607:fe28:0:1000::1)  0.230 ms  0.216 ms  0.204
ms
 2  sxct.sxcy.mtcnet.net (2607:fe28:11:1002::197)  0.201 ms  0.130 ms  0.127
ms
 3  v6-premier.sxcy-mlx.fbnt.netins.net (2001:5f8:7f0a:2::1)  1.604 ms
1.587 ms  1.598 ms
 4  v6-ins-db4-te-0-6-0-4-219.desm.netins.net (2001:5f8:1:1::1)  8.139 ms
7.777 ms  8.205 ms
 5  v6-ins-dc2-lo0.desm.netins.net (2001:5f8::5)  7.992 ms  7.959 ms  7.970
ms
 6  2001:550:2:24::9:1 (2001:550:2:24::9:1)  8.053 ms  7.954 ms  8.100 ms
 7  te0-2-0-0.ccr41.ord01.atlas.cogentco.com (2001:550:0:1000::9a36:2eed)
15.226 ms  15.371 ms  15.153 ms
 8  be2351.ccr21.cle04.atlas.cogentco.com (2001:550:0:1000::9a36:2c56)
22.562 ms  22.777 ms  22.460 ms
 9  be2485.mpd21.dca01.atlas.cogentco.com (2001:550:0:1000::9a36:1e12)
35.259 ms  35.377 ms  35.435 ms
10  te2-8.ccr01.iad03.atlas.cogentco.com (2001:550:0:1000::9a36:29fe)
35.191 ms  35.144 ms  35.335 ms
11  te2-1.mag01.iad03.atlas.cogentco.com (2001:550:0:1000::9a36:563e)
35.129 ms  35.171 ms  35.129 ms
12  * cogentco.com (2001:550:1::cc01)  47.093 ms [open]  *
root at nagios:/etc#