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OmnipeekOmnipeek User Guide
Reference : Channel statistics columns
Channel statistics columns
The following table describes all of the columns available in the Channels view of a capture window.
Column
Description
Channel
The number of the channel, indicating its center frequency.
Frequency
Shows frequency of channel in MHz (for example, 5180MHz for Channel 36).
Band
Shows wireless band of channel (for example, 802.11a, 802.11b, and 802.11n).
APs
Number of access points seen on the channel.
Total
Total of all traffic on the channel.
Data
Data packets.
Mgmt
Management packets.
Ctrl
Control packets.
Local
Local traffic, not associated with any Distribution System (DS). Includes Station to Station plus management and control packets. The TO DS and FROM DS bits are both set to 0.
From DS
The number of packets on that channel which were marked as “From DS,” meaning they were tagged as being directed toward a Distribution System. This generally means packets from an access point to a client.
To DS
The number of packets on that channel which were marked as “To DS,” meaning they were tagged as being directed toward a Distribution System. This generally means packets from a client to an access point.
DS-DS
The number of packets on that channel which were marked as both “To DS” and “From DS,” meaning they were tagged as being from one Distribution System to another. This generally means packets from one access point to another access point.
Retry
Packets in which the Retry bit is set to 1, indicating the packet is a retransmission.
Protected
Packets in which the Protected Frame bit is set to 1, indicating the packet payload is encrypted.
Order
Packets in which the Order bit is set to 1, requesting the contents be handled in strict order.
CRC Errors
Packets with CRC errors. The CRC is a checksum performed over the whole packet. CRC errors indicate the packet was truncated or garbled in transmission. This is common in cases of channel overlap and interference.
WEP ICV
Packets containing WEP ICV Errors. The ICV is a checksum performed over the data portion of a WEP-encrypted packet. On an otherwise properly formed packet, a WEP ICV failure often means the WEP keys used to decrypt the packet are not the right ones. Packets with CRC errors will commonly show as also having WEP ICV errors.
Signal Strength columns
Columns showing statistics related to signal strength reported with each packet, expressed either as a percentage or in decibel milliWatts (dBm).
 
Min. = Minimum signal strength reported on this channel from the time the statistics count was created until the most recent update.
 
Max. = Maximum signal strength reported on this channel from the time the statistics count was created until the most recent update.
 
Cur. = Most recently reported signal strength on the channel.
 
Avg. = Average signal strength over the period of statistics collection on this channel. Calculated as the simple average of all reported signal strengths seen, regardless of duration.
Noise columns
Columns showing statistics related to noise reported with each packet, expressed either as a percentage or in decibel milliWatts (dBm).
 
Min. = Minimum noise reading reported on this channel from the time the statistics count was created until the most recent update.
 
Max. = Maximum noise reading reported on this channel from the time the statistics count was created until the most recent update.
 
Cur. = Most recently reported noise reading on the channel.
 
Avg. = Average noise reading over the period of statistics collection on this channel. Calculated as the simple average of all reported noise readings seen, regardless of duration.
Created
Date and time at which this channel was first scanned for a signal, in the current session.
Updated
Date and time of the most recent scan of this channel, in the current session.
Data Rate columns
A variety of columns showing the number of packets/bytes in which the data portion of the packet was transmitted at the specified data rate.