1.
The Mobile World
UPSIDE DOWN
Dangerous Demos
TADSummit - Lisbon
November 2016
Daniel-Constantin Mierla
co-founder Kamailio SIP Server project
asipto.com
@miconda

2.
Solving First World Problems

3.
TAD Summit 2017
summer edition
the (new) mobile operator cto

4.
suddenly
alert - alert - alert
core network is down

5.
Do you think a copy
of the core infrastructure
was brought in?!?

6.
a smart cto

7.
every mobile operator nowadays
clients
server

8.
every mobile operator from now on
server
clients
(knowing also as moving from europe to australia)

9.
? can we transform ?
? into ?

10.
Join The Demo
• server address:
• 172.20.32.249
• choose any username
• username and password must be the same
• register and make calls
• flood the phone with sipp:
• https://www.asipto.com/~daniel/tadsummit/

11.
real world example
http://kamailio.org/events/2016-KamailioWorld/Day2/20-Pawel.Kuzak-High-Quality-
Telephony-Using-A-Fail-Safe-Media-Relay-Setup.pdf

12.
Just Some Numbers
• 2000-4000 registration attempts per second
• 15% - 60% CPU
• 2000x60 = 120000
• 10 - 30 min registration expires interval
• (!?!uniform distribution!?!)
• => 1 200 000 - 3 600 000 active subscribers

13.
all of that at the touch of the thumb
(with one tiny device in your pocket)

14.
now
imagine
what
this
guy
can
do
!!!

15.
Thank You!
Daniel-Constantin Mierla
asipto.com
@miconda
TADSummit - Lisbon
November 2016