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11 Monitoring the Network
132 APCD-LM043-4.0
11.3 EUM Statistics Monitoring
In general, the statistics collected at the EUM are the same as those collected at the CCU;
however, there are some differences in meaning (see Appendix H). More significantly, of
course, is that the EUM statistics are unique to the EUM, as opposed to the CCU statistics,
which are a collective of the CCU and all EUM interactions.
11.3.1 EUM Transmit Statistics
The relationships of the key EUM statistics are the same as those for the CCU. In the case of
the EUM, however, no broadcast packets are transmitted, and the value of
txPayloadsFailAssocDeleted will always be 0. The key EUM transmit statistics, with sample
values, are shown below.
Table 29 EUM Transmit Statistics
The same combinations used for the CCU case are also included in the table for clarity.
Statistic Description Sample
Total
Payload
Total
Packets
A txPayloads Number of payloads transmitted. 56,293 - -
B Tx Data Payloads
Number of data payloads to be
transmitted (user data)
44,718 - -
C Tx Control Payloads
Number of control payloads to
be transmitted.
2 - -
D txPayloads1Ok
Payload is delivered to the EUM
and acknowledged on the first
poll.
36,889 36,889
x1
36,889
E txPayloads2Ok
Payload is transmitted twice,
then acknowledge received.
5,216 5,216
x2
10,432
F txPayloads3Ok
Payload is transmitted three
times, then acknowledge
received.
1,489 1,489 x3 4,467
G txPayloads4Ok
Payload is transmitted four
times, then acknowledge
received.
553 553
x4
2,212
H txPayloadsFailRetry
No acknowledge received after
four transmissions, packet
discarded.
573 573 x4 2,292
Sum 44,720 56,292