Specifications

13-15
Cisco Aironet Access Point Software Configuration Guide
OL-0657-07
Chapter 13 Diagnostics and Troubleshooting
Using Diagnostic Pages
• Canceled AID—Packets dropped by a repeater because it roamed to a
different parent during a retransmission attempt.
• Lifetime Exceeded—Fragmented packets that were dropped because it took
too long to deliver a fragment.
• MIC Packets—Total number of packets for which the access point has
requested MIC has been requested to be calculated with the MMH algorithm
before being submitted for transmission over this radio since system startup.
• MIC Errors—Total number of packets which have failed MIC calculation
with the MMH algorithm before being submitted for transmission over this
radio since system startup.
• MIC Sequ. Errors—Packet appear to have arrived either very late or out of
sequence. This could be caused by a poor radio link or a replay.
• MIC Auth. Errors—The MIC signature is bad due to a calculation with the
wrong cryptographic key. These errors could be caused by a simple
misconfiguration of a WEP key, or it could be an attack
Display Options
Figure 13-8 shows the basic AP Radio Port page. Three display options provide
more details on the port configuration and operating statistics. The basic page
provides all the information needed to monitor and administer the port in normal
operation. You might need the other display options in comprehensive site surveys
or advanced system troubleshooting. To select a display option, click an option
checkbox and click Apply.
The display options include:
• Detailed Config.—Details on the radio port configuration, including request
to send (RTS) and data retry settings, firmware and bootblock version levels,
and regulatory domain code.
• Detailed Stats.—Twenty additional statistical fields covering packet
fragments, collisions, and other errors.
• Individual Rates—Data transmission statistics for each data rate (1, 2, 5, and
11 Mbps).