1. Analysis of Network Outage Reports
Cybersecurity and Communications Reliability Division – Public Safety & Homeland Security Bureau
John Healy
August 2016

2. Frequency of Outages by Month

3. Standards for Outage Frequencies
Took average of January 2013 through December 2013 as the standard
For Planned Maintenance
Took average of January 2014 through December 2014 as the standard

4. Frequency of Outages by Month
1.2%

5. Outage Index – For All Outages Except DS3-Simplex
See ATIS Analysis of FCC-Reportable Service Outage Data for a description of the method used to calculate the outage index.

6. New Planned Maintenance Cause Codes

7. New Planned Maintenance Cause Codes
2.1%

8. DS3 (Non-Simplex) Events

9. DS3 (Non-Simplex) Events
2.0%

10. Big DS3 Outages

11. DS3-Simplex

12. DS3-Simplex
0.8%

13. Fiber Cut

14. Fiber Cut
0.7%

15. E911

16. E911

17. Very Large E911 Outages

18. E911 – Phase 2 Events

19. E911 – Phase 2 Events

20. Wireline
Wireline outages are all outages for which the Reason Reportable was at least 900,000 wireline user-minutes.

21. Wireline
-0.9%
Wireline outages are all outages for which the Reason Reportable was at least 900,000 wireline user-minutes.

22. Wireless

23. Wireless
-0.5%

24. VoIP Reporting

25. VoIP Reporting
2.0%

26. Environmental – External

27. Environmental – External
1.4%

28. SS7

29. SS7
-1.2%

30. Malicious Events

31. Malicious Events

32. Malicious Activity
The figures for 2016 are thru June.

33. Duration Trends: DS3 Non-Simplex
The duration of DS3 non-simplex outages is statistically unchanged in 2016 compared with 2015 (using a Mann-Whitney test). 11

34. Duration Trends: E911
The duration of E911 outages is statistically unchanged in 2016 compared with 2015 (using a Mann-Whitney test). 6

35. Duration Trends: Wireline
The duration of wireline outages increased from 2015 to 2016 (statistically significant using a Mann-Whitney test).
119 96

36. Duration Trends: Wireless
The duration of wireless outages is statistically unchanged from 2015 to 2016 (using a Mann-Whitney test). 12

37. Duration Trends: DS3 Simplex
The duration of DS3 simplex outages is statistically unchanged from 2015 to 2016 (using a Mann-Whitney test).
226

38. Duration Trends: Other Special Facilities
The duration of other special facilities outages decreased from 2015 to 2016 (statistically significant using a Mann-Whitney test). 12 5

39. Duration Trends: VoIP
The duration of VoIP outages increased from 2015 to 2016 (statistically significant using a Mann-Whitney test). 9 12

40. Test for Trend in Event Duration
Non-DS3-Simplex Outages
Data from 1/14 thru 6/16
DS3-Simplex Events Only
Data from 1/14 thru 6/16
Rank Correlation of duration with date is and is significant at the .02 level
Rank Correlation of duration with date is and is not significant at the .05 level
Conclusion: Non DS3-Simplex Outages are shorter in duration from 1/14 to 6/16
Conclusion: DS3-Simplex Events are unchanged in duration from 1/14 to 6/16

41. NORS Transition
NORS coordinators began to test the new system in April
June 2 - Training session on the new NORS
August 29 – Public Notice on new NORS is published
August 31 – CenturyLink, T-Mobile and Verizon cutover to new platform
September – Remaining companies cutover to new platform

42. NRSC Activities Current Teams Best Practices Team
Outage Reporting Advisory Team
Improvements to the NORS System
Improvements to the template
Recommended ways to communicate information
Improvements to NORS/DIRS manuals
IP Transition Team
Consistent Use of Cause Codes