user manual

13-8
Cisco Aironet 1200 Series Access Point Software Configuration Guide
OL-2159-05
Chapter 13 Diagnostics and Troubleshooting
Using Diagnostic Pages
Configuration Information
• The top row of the Configuration section of the table contains a Set Properties link that leads to the
Ethernet Hardware page.
• Status of “fec0”— “Fast Ethernet Controller” is part of Motorola's naming convention for the
Ethernet device used by the access point. This field displays one of the three possible operating
states for the port. The added term “primary” identifies the port as the primary port for the access
point. Operating states include:
– Up—The port is operating properly.
– Down—The port is not operating.
– Error—The port is in an error condition.
• Maximum Rate (Mb/s)—Maximum rate of data transmission in megabits per second.
• IP Address—The IP address of the port.
• MAC Address—The unique identifier assigned to the access point by the manufacturer.
• Duplex—The port’s duplex setting, either half or full.
Receive Statistics
• Unicast Packets—The number of packets received in point-to-point communication.
• Multicast Packets—The number of packets received that were sent as a transmission to a set of
nodes.
• Total Bytes—Total number of bytes received.
• Total Errors—Total number of packets determined to be in error.
• Discarded Packets—Packets discarded due to errors or network congestion.
• Forwardable Packets—Packets received by the port that were acceptable or passable through the
filters.
• Filtered Packets—Packets that were stopped or screened by the filters set up on the port.
• Packet CRC Errors—Cyclic redundancy check (CRC) errors that were detected in a received packet.
• Carrier Sense Lost—The number of disconnects from the Ethernet network. Carrier sense lost events
are usually caused by disconnected wiring.
• Late Collisions—Packet errors that probably were caused by over-long wiring problems. Late
collisions could also indicate a failing NIC card.
• Overrun Packets—Ethernet packets that were discarded because the access point had a temporary
overload of packets to handle.
• Packets Too Long—Ethernet packets that were larger than the maximum packet size of 1518 bytes.
• Packets Too Short—Ethernet packets that were shorter than the minimum packet size of 64 bytes.
• Packets Truncated—Corrupt or incomplete packets.