Справочник Пользователя для 3com WX2200 3CRWX220095A

Examples — The following command displays RF attribute information 
for radio 1 on the directly connected MAP access point on port 2:

WX1200# display auto-tune attributes ap 2 radio 1

Auto-tune attributes for port 2 radio 1:

 Noise:                   -92 Packet Retransmission Count:          0

 Utilization:               0 Phy Errors Count:                     0

 CRC Errors count:      122

Table 62 describes the fields in this display.

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Table 62   Output for display auto-tune attributes

Noise

Noise threshold on the active channel. RF Auto-Tuning 
prefers channels with low noise levels over channels with 
higher noise levels.

Utilization

Number of multicast packets per second that a radio can 
send on a channel while continuously sending fixed size 
frames over a period of time. The number of packets that are 
successfully transmitted indicates how busy the channel is.

CRC Errors count

Number of frames received by the radio on that active 
channel that had CRC errors. A high CRC error count can 
indicate a hidden node or co-channel interference.

Packet 
Retransmission 
Count

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.

Phy Errors Count

Number of frames received by the MAP radio that had 
physical layer errors on the active channel. Phy errors can 
indicate interference from a non-802.11 device.