Cisco ASR 5000 Series - Mean Time between Failure and System Availability

Redundancy and Availability Features
Mean Time Between Failure and System Availability ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-02
Mean Time Between Failure and System Availability
Mean Time Between Failure (MTBF) data is used to provide statistical information as to the length of time that should
expire before a particular card or system fails. This information is calculated using the following method:
Calculated MTBF - Expected elapsed time before failure occurs using the method defined in Telcordia TR-NWT-
000332-CORE. This is based on reliability of components and design factors.
Failure per million hours (Fpmh) identifies the predicted failure rate per one million hours (for every 1,000,000 hours of
operation, ―FITS number‖ of failures would be expected to occur) for a component of the system.
MTBF Table
The following table shows the MTBF characteristics of each major component of the system.
Table 26. Mean Time Between Failure Statistics
Part Number
Description
MTBF (Hours)
MTBF
(Years)
Fpmh (Failure per
million hours)
600-00-1111
Chassis with Midplane
16,386,995
1869.38
0.061
600-00-3026
System Management Card
104,372
11.91
9.58
600-00-3025
Packet Services Card (PSC or
PSC2)
102,294
11.68
9.78
600-00-5052
10 Gigabit Ethernet Line Card
(XGLC)
247,720
28.28
4.04
600-00-5038 Multi-Mode 600-00-5051
Single Mode 600-00-5039 Copper
Quad Gig-E Card (QGLC)
258,606
29.52
3.867
600-00-5016
ATM/POS OC-3 SM IR-1 Card
optical daughter card
214,492
1,419,581
48.6 73.4
4.66 0.70
600-00-5001
Switch Processor I/O Card
333,999
38.13
2.99
600-00-5002
Redundancy Crossbar Card
555,862
63.46
1.79
600-00-5003
Ethernet 10/100 Card (FELC)
495,886
56.61
2.01
600-00-5101
Ethernet 1000 Card (GELC)
396,715
45.29
2.52
600-00-1112
Power Filter Unit (165A)
967,118
110.40
1.03
600-00-1104
Fan Tray Unit - Lower
70,517
8.05
19.51
600-00-1103
Fan Blower Unit - Upper
120,178
13.72
18.72