ATIS 0100021-2008 Analysis of FCC-Reportable Service Outage Data.pdf
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1、 TECHNICAL REPORT ATIS-0100021 ANALYSIS OF FCC-REPORTABLE SERVICE OUTAGE DATA ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry. More than
2、250 companies actively formulate standards in ATIS 18 Committees, covering issues including: IPTV, Service Oriented Networks, Energy Efficiency, IP-Based and Wireless Technologies, Quality of Service, and Billing and Operational Support. In addition, numerous Incubators, Focus and Exploratory Groups
3、 address emerging industry priorities including “Green”, IP Downloadable Security, Next Generation Carrier Interconnect, IPv6 and Convergence. ATIS is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a member and major U.S. contributor to the International
4、 Telecommunication Union (ITU) Radio and Telecommunications Sectors, and a member of the Inter-American Telecommunication Commission (CITEL). For more information, please visit . Notice of Disclaimer this reflects the difference between the reporting criteria which has an absolute 30-minute duration
5、 threshold, while no such reporting threshold exists for customers affected alone. However, the magnitude weight curve has a more sustained rise and does not approach its asymptote until well beyond its inflection point. This reflects the outage index sensitivity to the impact of affecting larger gr
6、oups of customers relative to duration impacts. The number of customers affected is determined in the following way: Step 1: Calculate the number of users affected by taking the maximum of the Number of Potentially Affected fields under Effects of the Outage - i.e., Wireline Users, Wireless (non-pag
7、ing) Users, Paging Users, Cable Telephony Users, and Satellite Users. Step 2: Calculate the number of equivalent customers affected based on the reported number of Blocked Calls. If the Historic field is checked for Blocked Calls, then this number is equal to the reported number of Blocked Calls. If
8、 the Real-Time field is checked for Blocked Calls, then this number is equal to the reported number of Blocked Calls divided by 3. Step 3: Calculate the number of equivalent customers affected based on the reported number of DS3s affected. This number is equal to the reported number of DS3s affected
9、 multiplied by 666.667. This conversion is based on the equivalency of 672 DS0 circuits to a DS3 as discussed in FCC 04-188. Step 4: Calculate the number of equivalent customers affected based on the reported number of Lost SS7 MTP Messages. If the Historic field is checked for Lost SS7 MTP Messages
10、, then this number is equal to the reported number of Lost SS7 MTP Messages multiplied by 30,000 and ATIS-0100021 8 divided by 167,000. This conversion is based on the Alcatel equivalency of 500,000 lost MTP messages with 90,000 blocked calls as discussed in FCC 04-188. If the Real-Time field is che
11、cked for Lost SS7 MTP Messages, then this number is equal to the reported number of Lost SS7 MTP Messages multiplied by 10,000 and divided by 167,000. Step 5: The number of customers affected for determining the magnitude weight is the maximum of the four values calculated in Steps 1 through 4. 6.3
12、Outage Index Examples 6.3.1 Outage Index Values Given Outage Duration and Outage Magnitude Metric Each column of Table 1 provides outage indexes for a given duration and a variety of magnitudes. Each row of the table provides outage indexes for a given magnitude and a variety of durations. The magni
13、tude can be expressed in different ways (e.g., blocked calls, customers, DS3s) as well as historic or real-time measures. Each row has an equivalent magnitude for the purposes of the outage index calculation; for example, 10 million customers affected is equivalent to 15,000 DS3s affected or 30 mill
14、ion real-time blocked calls. ATIS-0100021 9 Table 1: Outage Index Given Magnitude and Duration A. E911 Not Affected DS3s Customers MinutesHistoricReal-TimeHistoricReal-TimeAfectdAfecd 3013612173010 30 57 1,670 10 0.00.000.000.000.000.000.000.030 90 1,670 5,01 30 0.00.000.000.000.000.000.000.050 1,50
15、 2,783 8,350 50 0.00.000.000.000.000.000.000.01,000 3,000 5,567 16,700 1,000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002,000 6,000 11,133 33,400 3 2,000 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.014,000 12,000 22,267 66,800 6 4,000 0.01 0.02 0.02 0.03 0.03 0.03 0.03 0.0310,000 30,000 55,667 167,000 15 10,00
16、0 0.08 0.11 0.15 0.17 0.19 0.19 0.20 0.2030,000 90,000 167,000 501,000 45 30,000 0.72 0.95 1.36 1.56 1.69 1.75 1.80 1.8050,000 150,000 278,333 835,000 75 50,000 2.00 2.63 3.79 4.35 4.69 4.86 4.99 5.00100,000 300,000 556,667 1,670,000 150 100,000 6.57 8.65 12.43 14.27 15.40 15.97 16.39 16.42300,000 9
17、00,000 1,670,000 5,010,000 450 300,000 18.74 24.67 35.48 40.72 43.93 45.57 46.75 46.84500,000 1,500,000 2,783,333 8,350,000 750 500,000 25.75 33.89 48.73 55.94 60.34 62.59 64.22 64.341,000,000 3,000,000 5,566,667 16,700,000 1,500 1,000,000 34.66 45.63 65.61 75.32 81.24 84.27 86.46 86.633,000,000 9,0
18、00,000 16,700,000 50,100,000 4,500 3,000,000 44.08 58.02 83.43 95.77 103.30 107.16 109.94 110.165,000,000 15,000,000 27,833,333 83,500,000 7,500 5,000,000 46.43 61.11 87.88 100.87 108.81 112.87 115.80 116.0310,000,000 30,000,000 55,666,667 167,000,000 15,000 10,000,000 48.26 63.53 91.36 104.86 113.1
19、1 117.33 120.39 120.62Magnitude DurationBlocked Calls Lost SS7 MTP Messages Hours DaysB. E911 Affected DS3s Customers MinutesHistoric Real-Time Historic Real-Time Affected Affected 30 1 3 6 12 1 7 30100 300 557 1,670 100 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00300 900 1,670 5,010 300 0.00 0.00 0.00 0
20、.00 0.00 0.00 0.00 0.00500 1,500 2,783 8,350 500 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.001,000 3,000 5,567 16,700 1,000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002,000 6,000 11,133 33,400 3 2,000 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.024,000 12,000 22,267 66,800 6 4,000 0.03 0.03 0.05 0.06 0.06 0.06 0.06
21、 0.0610,000 30,000 55,667 167,000 15 10,000 0.16 0.21 0.30 0.35 0.37 0.39 0.40 0.4030,000 90,000 167,000 501,000 45 30,000 1.44 1.90 2.73 3.13 3.37 3.50 3.59 3.6050,000 150,000 278,333 835,000 75 50,000 4.00 5.27 7.57 8.69 9.37 9.72 9.98 10.00100,000 300,000 556,667 1,670,000 150 100,000 13.14 17.29
22、 24.87 28.55 30.79 31.94 32.77 32.83300,000 900,000 1,670,000 5,010,000 450 300,000 37.49 49.35 70.96 81.45 87.86 91.13 93.51 93.69500,000 1,500,000 2,783,333 8,350,000 750 500,000 51.49 67.78 97.47 111.88 120.68 125.18 128.44 128.691,000,000 3,000,000 5,566,667 16,700,000 1,500 1,000,000 69.33 91.2
23、6 131.23 150.63 162.48 168.54 172.93 173.263,000,000 9,000,000 16,700,000 50,100,000 4,500 3,000,000 88.16 116.04 166.87 191.54 206.60 214.31 219.89 220.325,000,000 15,000,000 27,833,333 83,500,000 7,500 5,000,000 92.86 122.23 175.76 201.75 217.62 225.74 231.61 232.0610,000,000 30,000,000 55,666,667
24、 167,000,000 15,000 10,000,000 96.53 127.06 182.72 209.73 226.23 234.67 240.77 241.24Blocked Calls Lost SS7 MTP Messages Hours DaysMagnitude DurationATIS-0100021 10 6.3.2 Outage Durations and Outage Magnitude Metrics that Result in a Given Outage Index Value Figures 4 and 5 present contour plots of
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