Cisco Systems DL-2159-05 manual Display Options, 13-12

Chapter 13 Diagnostics and Troubleshooting

Using Diagnostic Pages

•Discarded Packets—The number of packets discarded by the access point due to errors or network congestion.

•Forwarded Packets—The number of packets transmitted by the port that were acceptable or passable through the filters.

•Max Retry Packets—The number of times request to send (RTS) reached the maximum retry number. Click Set Properties to display the AP Radio Hardware page, where you can set the maximum RTS value.

•Total Retries—The total number of retries that occurred through the radio port.

•Canceled Assoc. Lost—Packets dropped because a client device lost association with the access point.

•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 since system startup for which the access point has requested MIC to be calculated with the MMH algorithm before being submitted for transmission.

•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—Packets 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 by an attack.

Display Options

Figure 13-8shows 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 check box 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).

	Cisco Aironet 1200 Series Access Point Software Configuration Guide
13-12	OL-2159-05