User's Manual Part 2

11: Monitoring the Network
APCD-LM043-8.0 (DRAFT C) 171
11.4 EUM Transmit Statistics
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.
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 31 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
AtxPayloads Number of payloads transmitted. 49,101 - -
B Tx Data Payloads
Number of data payloads to be
transmitted (user data)
45,879 - -
C Tx Control Payloads
Number of control payloads to
be transmitted.
2- -
D txPayloads10k
Payload is delivered to the EUM
and acknowledged on the first
poll.
43,153 43,153
x1
43,153
E txPayloads20k
Payload is transmitted twice,
then acknowledge received.
2,306 2,306
x2
44,612
F txPayloads30k
Payload is transmitted three
times, then acknowledge
received.
344 344
x3
1,032
G txPayloads40k
Payload is transmitted four
times, then acknowledge
received.
47 47
x4
188
H txPayloadsFailRetry
No acknowledge received after
four transmissions, packet
discarded.
29 29
x4
116
I
txPayloadsFailTime
out
Total number of payloads
returned to host because of
timeout.
0-
-
-
Sum 45,879 49,101