[outages] Google DNS in Atlanta Market Slow or timing out

[Erik Sundberg]

Anyone else seeing issues with Google DNS (8.8.8.8) in the Atlanta Market? We have customer's calling in reporting slow or timing out DNS requests.   Yes I know this is DNS anycast and have narrowed it down only to the Atlanta Market for traffic going over the Atlant Telx Internet Exchange.

Popular websites that are cached like google, amazon, and yahoo seem fine.

LinuxBox# dig +trace -t mx cnn.com @8.8.8.8

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> +trace -t mx cnn.com @8.8.8.8
;; global options: +cmd
;; connection timed out; no servers could be reached


LinuxBox# dig +trace -t mx cltv.com @8.8.8.8

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> +trace -t mx cltv.com @8.8.8.8
;; global options: +cmd
;; connection timed out; no servers could be reached


LinuxBox# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=49 time=0.962 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=49 time=1.01 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=49 time=0.981 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=49 time=1.00 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=49 time=1.01 ms
^C
--- 8.8.8.8 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4542ms
rtt min/avg/max/mdev = 0.962/0.995/1.015/0.035 ms
LinuxBox# traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1  g-0-0-22.ear1.atl1.nitelusa.net (64.191.93.205)  1.048 ms  1.108 ms  1.172 ms
2  te-0-7-1-0.ar1.atl1.nitelusa.net (207.200.195.221)  4.473 ms  4.479 ms  4.473 ms
3  te-0-7-0-0.ar2.atl1.nitelusa.net (207.200.195.202)  2.145 ms  2.138 ms  2.129 ms
4  aix.pr1.atl.google.com (198.32.132.41)  0.367 ms  0.377 ms  0.369 ms
5  209.85.243.11 (209.85.243.11)  1.052 ms  0.778 ms 209.85.242.249 (209.85.242.249)  0.510 ms
6  216.239.59.153 (216.239.59.153)  1.396 ms 72.14.233.119 (72.14.233.119)  1.171 ms 72.14.233.145 (72.14.233.145)  1.073 ms
7  209.85.142.157 (209.85.142.157)  0.980 ms 72.14.237.109 (72.14.237.109)  1.049 ms 72.14.237.155 (72.14.237.155)  0.990 ms
8  * * *
9  google-public-dns-a.google.com (8.8.8.8)  1.008 ms  1.011 ms  0.989 ms


Erik Sundberg
Sr. Network Engineering
Network Engineering Department
p: 773.661.5532
c: 708.710.7419
e: esundberg at nitelusa.com
Main: 888.450.2100
NOC 24/7: 866.892.0915
1101 W. Lake Street, 6th Floor | Chicago, IL 60607
www.nitelusa.com<http://www.nitelusa.com/>
[Nitel]
Managed Telecom Services
MPLS | Ethernet | Private Line | Internet | Voice | Security


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