Cambium Networks PMP 450 AP, Configuration Manual

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Chapter 3: Operation System statistics
Page
3-61
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Ave Pkt Size – Average size of the packets transmitted by the AP/BHM at the RF Interface for
this LUID over the collection interval
o
discards – Number of packets to be transmitted by the AP/BHM at the RF Interface for this
LUID over the collection interval that had to be discarded because the RF Out Queue was full
o
discards % – Percent of the total packets to be transmitted by the AP/BHM at the RF Interface
for this LUID over the collection interval that had to be discarded because the RF Out Queue
was full.
Interpreting Overload statistics
The Statistics > Overload page displays statistics on packet overload and resultant packet discards.
Unlike the other fields, the Total Packets Overload Count is expressed in only this page. It is not a count
of how many packets have been lost, but rather of how many discard events (packet loss bursts) have
been detected due to overload condition.
This statistics page is applicable for all modules (AP/SM/BHM/BHS) and explained in Table 141 .
Table 141 Overload page attributes – AP/SM/BHM/BHS
Attribute Meaning
Total Packets
Overload Count This field represents the sum of all RF and Ethernet in/out discards.
Ethernet In Discards
This field represents the number of packets tossed due to the Ethernet
queue being full. If a climb in this stat accompanies a climb in RF Out
Discards stat, then most likely the board is at RF capacity either due to
traffic exceeding the RF pipe, or interference temporarily limiting the RF
throughput. If this stat climbs without the RF Out Discards stat climbing,
then the radio is most likely PPS limited.