3Com 3CRWX120695A Reference Manual page 451

value at end of polling interval - value at beginning of polling interval
Table 51 RF Trends Columns
Column
Radio
SNR
Throughput
Associated Clients
Client Failures
802.11 Packet Errors
Non-802.11 PHY Errors Number of times the radio detected energy on the active
Re-transmits
Receiver Threshold
If the SNR, Associated Clients, or Receiver Threshold column is red, this
indicates that the threshold configured for this parameter has been
exceeded. (See "Changing Monitoring Settings" on page 552.)
When looking at graphed data, you can see the data in absolute or delta
values.
Delta (rate of change) values are calculated with the following equation:
time difference (in seconds)
To change how you view data values, select Absolute to see absolute
values or Deltas to see rate-of-change values.
Using the RF Trends Window
Description
MAP name and radio number.
Signal-to-noise ratio of the last data packet received by the
radio.
Rate at which data is transmitted by the radio, in bits per
second.
Number of clients associated with the radio.
Combined number of the following types of errors:
802.1X failures
association failures
authentication failures
authorization failures
Number of frames received by the MAP radio that had
physical layer errors on the active channel. These errors
can indicate interference from a non-802.11 device.
channel that either was not recognizable as an 802.11
frame, or was above the power level of background noise.
Number of retransmitted packets sent from the client to
the radio on the active channel. Retransmissions can
indicate that the client is not receiving ACKs from the MAP
radio.
Radio's hearing sensitivity, in decibels (dB).
451