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B-1
B: Show 802.11 Errors
B.1 Introduction
When you enter the Show 80211 command without any other parameters, the resulting screen includes a
field for errors. The “Errors:” field displays two eight-digit numbers, separated by a comma. These
numbers are a 64-bit wide bitfield of error bits, each one indicating whether or not the given error has
occurred at least once.
For example, suppose you're using an MSS-Via with a ZoomAir card in Infrastructure mode. After
having been running for a long time, your Access Point loses power in the middle of sending a fragmented
packet to the MSS. If you entered the Show 80211 command, you might see a screen resembling the
following:
Figure B-1: Example of Error Bits
The Errors bitfield is zeroed each time you issue either a Zero command or a Set 802.11 Reset command
at the Local> prompt.
The Errors bitfield is zeroed each time you issue either a Zero command or a Change 802.11 Reset
command at the Local> prompt.
B.2 Error Bits
B.2.1 Leftmost Number
80000000 An authentication or association sequence timed out. An expected reply from
the AP was not received within the required time window.
40000000 Internal error.
20000000 Internal error.
Local_5>> SHOW 80211
802.11 Support: Active
Network Type: Infrastructure
Use MAC address from: MSS (00-80-a3-30-ee-31)
ESS ID: (none set)
Regulatory Region: FCC/USA
DS Channel: Any
RTS Threshold: 3000
Fragmentation Threshold: 2346
Card Present: Zoom Air 4000
Status: Scanning
Errors: 08020002,00000920
Card Firmware Revision: 2.01