[outages] routing loop in cogent?

[Jay Hennigan]

Josh Fiske wrote:
> Complete traceroute for the interested...  (FWIW, 205.232.34.1 is the 
> DNS for a small ISP in central NY.)  At this point, I cannot determine 
> whether they have dropped off the map or whether Cogent is just 
> mis-routing traffic...I don't have another host on the other side of 
> Cogent's cloud to trace to.

It's reachable from here, but not through Cogent.


  3  f0-0.border2.sba1.netlojix.net (207.71.192.51)  41.404 ms  323.870 
ms  330.528 ms
  4  so-1-0.ipcolo1.losangeles1.level3.net (64.156.173.57)  36.368 ms 
39.335 ms  34.199 ms
  5  vlan51.csw1.losangeles1.level3.net (4.68.102.30)  35.790 ms  37.564 
ms  38.921 ms
  6  ae-14-69.car4.losangeles1.level3.net (4.68.20.6)  37.759 ms  36.463 
ms  39.010 ms
  7  globalcrossing-level3-10ge.losangeles1.level3.net (4.68.110.66) 
41.986 ms  43.080 ms  35.000 ms
  8  64.209.107.158 (64.209.107.158)  118.865 ms  123.881 ms  120.093 ms
  9  66.152.112.10 (66.152.112.10)  121.595 ms  119.958 ms  121.811 ms
10  66.152.113.44 (66.152.113.44)  123.470 ms  122.608 ms  122.927 ms
11  bond0b.lightlink.com (216.7.9.33)  130.447 ms  128.141 ms  131.083 ms
12  fw1.lightlink.com (205.232.89.2)  142.068 ms  139.863 ms  139.027 ms
13  205.232.34.1.lightlink.com (205.232.34.1)  129.275 ms  137.171 ms 
149.257 ms

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV