Cabletron Systems AirConnect 3Com - Manual (Page 39)

Miscellaneous Statistics 39
Miscellaneous
Statistics The AP keeps statistics on WNMP and SNMP packets, filtering violations, and serial
port use in the Miscellaneous Statistics window. to display the Misc System
Statistics window, select Main Menu
→Misc Statistics.
Select Refresh or press the F1 key to update the values manually. Select Timed or
press the F2 key to have the AP automatically update the display every two seconds.
Press Esc or Previous [F4] to exit.
Analyzing Retries The AP keeps statistics of packets with multiple retries. Use these statistics to
identify severe occurrences of retries. Retries occur when the transmitting station
fails to receive an acknowledgment for a transmitted packet. This lack of
acknowledgment can result from:
■
Two or more stations transmitting simultaneously and causing collisions
■ The receiving station moving out of range
■ The receiving station being powered off.
Any one of these incidents causes both devices to suspend transmitting and retry
later. Too many retries can indicate a system problem.
To view retry severity, do the following:
1 Select Statistics from the Main Menu.
2 Select Retry Histogram. The display indicates the packets that experience retries
(up to 15 retries).
3 Press any key to return to the Main Menu.
Type Name Definition
WNMP Echoes Echo requests received by the AP.
Pings Ping requests received by the AP.
Passthrough Echoes Echoes for wireless clients associated with
the AP.
SNMP Requests Configuration requests received from the
SNMP manager.
Traps AP messages sent to the SNMP manager.
Filter ACL Violations Attempts by wireless client(s) not in ACL list
to associate with this AP.
Address Packets discarded by address filter.
Type Packets discarded by type filter.
Modem Number of Dialouts Dial-out attempts by the AP.
Dialout Failures Dial-out failures by the AP.
Number of Answers Answer attempts by the AP.
Current Call Time Current connection session length, in
seconds.
Last Call Time Last connection session length, in seconds.