[outages] Netflix over IPv6

Frank Bulk frnkblk at iname.com
Tue Oct 1 19:17:23 EDT 2013


The issue started happening today again.  It sounds like Netflix is having
some challenges with advertising AAAA's that are operating.  When
www.netflix response I get three AAAA's that on AWS East.  When it's not
working, I get eight AAAA's that are on AWS West.

Here's the three AAAA's when it's good and the eight AAAA's when it's not
good.


nagios:/tmp# ./netflix.sh

; <<>> DiG 9.7.3 <<>> AAAA www.netflix.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 8, ADDITIONAL: 8

;; QUESTION SECTION:
;www.netflix.com.               IN      AAAA

;; ANSWER SECTION:
www.netflix.com.        290     IN      CNAME
dualstack.wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com.
dualstack.wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 50
IN AAAA 2406:da00:ff00::b849:f83b
dualstack.wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 50
IN AAAA 2406:da00:ff00::b849:fcb3
dualstack.wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 50
IN AAAA 2406:da00:ff00::6b16:ebed

;; AUTHORITY SECTION:
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-947.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-927.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-941.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-925.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-935.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-934.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-944.amazonaws.com.
wwwservice--frontend-san-756424683.us-east-1.elb.amazonaws.com. 1490 IN NS
ns-916.amazonaws.com.

;; ADDITIONAL SECTION:
ns-916.amazonaws.com.   350     IN      A       207.171.178.7
ns-925.amazonaws.com.   590     IN      A       72.21.208.213
ns-927.amazonaws.com.   590     IN      A       72.21.204.209
ns-934.amazonaws.com.   590     IN      A       87.238.84.215
ns-935.amazonaws.com.   590     IN      A       87.238.80.213
ns-941.amazonaws.com.   7532    IN      A       204.246.160.5
ns-944.amazonaws.com.   1772    IN      A       205.251.228.6
ns-947.amazonaws.com.   590     IN      A       204.246.162.10

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Oct  1 17:58:05 2013
;; MSG SIZE  rcvd: 496

PING 2406:da00:ff00::6b16:ebed(2406:da00:ff00::6b16:ebed) 56 data bytes
64 bytes from 2406:da00:ff00::6b16:ebed: icmp_seq=1 ttl=48 time=57.7 ms
64 bytes from 2406:da00:ff00::6b16:ebed: icmp_seq=2 ttl=48 time=58.9 ms
64 bytes from 2406:da00:ff00::6b16:ebed: icmp_seq=3 ttl=48 time=57.8 ms

--- 2406:da00:ff00::6b16:ebed ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 57.709/58.149/58.938/0.624 ms
PING 2406:da00:ff00::b849:f83b(2406:da00:ff00::b849:f83b) 56 data bytes
64 bytes from 2406:da00:ff00::b849:f83b: icmp_seq=1 ttl=49 time=58.6 ms
64 bytes from 2406:da00:ff00::b849:f83b: icmp_seq=2 ttl=49 time=58.4 ms
64 bytes from 2406:da00:ff00::b849:f83b: icmp_seq=3 ttl=49 time=58.4 ms

--- 2406:da00:ff00::b849:f83b ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 58.468/58.537/58.646/0.212 ms
PING 2406:da00:ff00::b849:fcb3(2406:da00:ff00::b849:fcb3) 56 data bytes
64 bytes from 2406:da00:ff00::b849:fcb3: icmp_seq=1 ttl=49 time=74.8 ms
64 bytes from 2406:da00:ff00::b849:fcb3: icmp_seq=2 ttl=49 time=58.7 ms
64 bytes from 2406:da00:ff00::b849:fcb3: icmp_seq=3 ttl=49 time=65.3 ms

--- 2406:da00:ff00::b849:fcb3 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 58.732/66.318/74.827/6.606 ms
nagios:/tmp# ./netflix.sh

====================================================

; <<>> DiG 9.7.3 <<>> AAAA www.netflix.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38593
;; flags: qr rd ra; QUERY: 1, ANSWER: 9, AUTHORITY: 8, ADDITIONAL: 0

;; QUESTION SECTION:
;www.netflix.com.               IN      AAAA

;; ANSWER SECTION:
www.netflix.com.        124     IN      CNAME
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com.
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::3270:5c77
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::3270:5c7b
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::36d6:752
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::36d6:20b0
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::36d6:22b2
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::36d6:24e1
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::36f4:7696
dualstack.wwwservice--frontend-san-608070354.us-west-2.elb.amazonaws.com. 4
IN AAAA 2620:108:700f::36f4:e97a

;; AUTHORITY SECTION:
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-925.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-947.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-916.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-934.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-941.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-935.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-944.amazonaws.com.
us-west-2.elb.amazonaws.com. 124 IN     NS      ns-927.amazonaws.com.

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Oct  1 18:10:51 2013
;; MSG SIZE  rcvd: 508

PING 2620:108:700f::36f4:e97a(2620:108:700f::36f4:e97a) 56 data bytes

--- 2620:108:700f::36f4:e97a ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2000ms

PING 2620:108:700f::3270:5c77(2620:108:700f::3270:5c77) 56 data bytes

--- 2620:108:700f::3270:5c77 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2008ms

PING 2620:108:700f::3270:5c7b(2620:108:700f::3270:5c7b) 56 data bytes

--- 2620:108:700f::3270:5c7b ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms

PING 2620:108:700f::36d6:752(2620:108:700f::36d6:752) 56 data bytes

--- 2620:108:700f::36d6:752 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2016ms

PING 2620:108:700f::36d6:20b0(2620:108:700f::36d6:20b0) 56 data bytes

--- 2620:108:700f::36d6:20b0 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2014ms

PING 2620:108:700f::36d6:22b2(2620:108:700f::36d6:22b2) 56 data bytes

--- 2620:108:700f::36d6:22b2 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2013ms

PING 2620:108:700f::36d6:24e1(2620:108:700f::36d6:24e1) 56 data bytes

--- 2620:108:700f::36d6:24e1 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2009ms

PING 2620:108:700f::36f4:7696(2620:108:700f::36f4:7696) 56 data bytes

--- 2620:108:700f::36f4:7696 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2013ms

nagios:/tmp#

-----Original Message-----
From: Outages [mailto:outages-bounces at outages.org] On Behalf Of Frank Bulk
Sent: Monday, September 30, 2013 12:26 PM
To: outages at outages.org
Subject: [outages] Netflix over IPv6

Friday evening, Sunday morning, and Sunday evening, our monitoring system
has seen sporadic HTTPv6 access issues to www.netflix.com.  Starting since
10:36 am Central this morning, I've seen sporadic ICMPv6 failures to
www.netflix.com.

Now www.netflix.com has many AAAA records that are likely different around
the world and I don't have our monitoring system set up to individually
monitor each AAAA record, but wondering if anyone else has seen the same
thing?

Regards,

Frank

================
Current AAAA's, currently pingable:

2406:da00:ff00::b849:f83b
2406:da00:ff00::b849:fcb3
2406:da00:ff00::6b16:ebed

=================
Former AAAA's during non-working state:

2620:108:700f::36f4:7696
2620:108:700f::36f4:dd14
2620:108:700f::36f4:e97a
2620:108:700f::3270:5c77
2620:108:700f::3270:5c7b
2620:108:700f::36d6:752
2620:108:700f::36d6:b87
2620:108:700f::36d6:22b2

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