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display ap counters 321
Table 54 describes the fields in this display.
Table 54 Output for display ap counters
Field Description
AP Distributed MAP number.
Port WX port number (if the MAP is directly connected to the WX
and the WX port is configured as a MAP access point).
radio Radio number.
LastPktXferRate Data transmit rate, in Mbps, of the last packet received by
the MAP access point.
NumCntInPwrSave Number of clients currently in power save mode.
LastPktRxSigStrength Signal strength, in dBm, of the last packet received by the
MAP access point.
LastPktSigNoiseRatio Signal-to-noise ratio, in decibels (dB), of the last packet
received by the MAP access point.
This value indicates the strength of the radio signal above the
noise floor. For example, if the noise floor is -88 and the
signal strength is -68, the SNR is 20.
If the value is below 10, this indicates a weak signal and
might indicate a problem in the RF environment.
TKIP Pkt Transfer Ct Total number of TKIP packets sent and received by the radio.
TKIP Pkt Replays Number of TKIP packets that were resent to the MAP by a
client.
A low value (under about one hundred) does not necessarily
indicate a problem. However, if this counter is increasing
steadily or has a very high value (in the hundreds or more), a
Denial of Service (DoS) attack might be occurring. Contact
3Com TAC.
CCMP Pkt Decrypt
Err
Number of times a decryption error occurred with a packet
encrypted with CCMP.
Occasional decryption errors do not indicate a problem.
However, steadily increasing errors or a high number of
errors can indicate that data loss is occurring in the network.
Generally, this is caused by a key mismatch between a client
and the MAP. To locate the client that is experiencing
decryption errors (and therefore is likely causing this counter
to increment on the MAP), use the display sessions
network session-id session-id command for each client on
the radio. After you identify the client that is causing the
errors, disable and reenable the client (wireless NIC).