The document discusses Real User Monitoring (RUM) for measuring IPv4 and IPv6 performance, emphasizing its advantages over synthetic monitoring. It presents statistics on global IPv6 growth, with LinkedIn's traffic reaching 10% using IPv6, and highlights specific mobile performance improvements across various European countries and the US. The presentation concludes with acknowledgments to contributors involved in the research.

1. IPv6 Measurements
1
Zaid Ali Kahn
Director
Infrastructure Architecture

2. Agenda
1. Real user monitoring (RUM) IPv4/IPv6
2. Global IPv6 growth
3. IPv6 Heat maps
4. IPv6 Mobile performance
2

3. 3
RUM – What and Why
§ Synthetic monitoring doesn’t work
– E.g., keynote, gomez, catchpoint etc.
– Limited coverage
– Single user
§ Real User Monitoring
– Beacon based (Javascript/Boomerang lib)
– Performance metrics from browsers of real users
– E.g., TCP connect time, Page download time

4. 4
RUM – How
§ Navigation timing API
– Most browsers support it
– Browsers record performance timers for each page load
§ JavaScript timers
– For everything else

5. § Browse to www.linkedin.com on Chrome
§ Open “Console” on Chrome Dev Tools
– Mac : Cmd + Opt + J
– Windows/Linux : Ctrl + Shift + J
5
RUM – How

6. rum = window.performance.timing
6
RUM – How

7. rum = window.performance.timing
Connect Time:
rum.connectEnd – rum.connectStart
Download Time:
rum.responseEnd – rum.responseStart
Request to Response time:
rum.responseEnd – rum.requestStart
7
RUM – How

8. 8
RUM – How

9. 9
RUM telemetry architecture

10. Global IPv6 growth at LinkedIn
10
10% of LinkedIn traffic is IPv6
IPv6 Launch Period
Interesting spike to 13%

11. IPv6 heat map global
11

12. IPv6 heat map US
12

13. Europe mobile performance (France)
13
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
Orange Free Bouygues Telecom SFR
Page download improvement IPv6

14. Why? AS12322(Free) analysis
14
Higher Network request time means higher TCP timeouts yielding in higher page download load times.
1.6% timeout
4.6% timeoutIPv4 network request
IPv6 network request

15. Europe mobile performance (Belgium)
15
0%
2%
4%
6%
8%
10%
12%
14%
BASE Mobistar Proximus Telenet
Page download improvement IPv6

16. Europe mobile performance (Germany)
16
0%
5%
10%
15%
20%
25%
E-Plus o2-De Telecom-De Vodafone-De
Page download improvement IPv6

17. Europe mobile performance (UK)
17
0%
5%
10%
15%
20%
25%
EE O2 Three Vodafone UK
Page download improvement IPv6

18. United States mobile performance (US)
18
0%
5%
10%
15%
20%
25%
30%
ATT Sprint T-Mobile Verizon
Page download improvement IPv6

19. Conclusion
19

20. Thank you!
20
Ritesh Maheshwari Bret Palson David He Ruixuan Hou
Sobir Bazarbayev Navneet Nagori Ajay Srivastava