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Accounting Description
23-2 Accounting
Accounting Description
Introduction
The configuration of the accounting feature is supported using SNMP and the user
interface. The accounting log itself is also accessible by both mechanisms. There is
also a facility for sending accounting events to the access server console port as they
occur.
Accounting Log File
The accounting component stores information about significant user events (for
example, logins) in an accounting log file. The size of the log file is defined by the
administrator (see the Defining the Accounting Log Size section in this chapter) and if
set to zero, no logging will occur. The log file can be viewed as a circular buffer with
entries added in chronological order. When the end of the buffer is reached, a newly
created entry will overwrite the oldest existing entry.
Since the access server offers limited mass storage, preserving the accounting
information requires the use of the console logging feature (see the Using the
Accounting Console Logging Feature section in this chapter) or a “harvester”
application running on a management station. To facilitate this harvest application, the
accounting component can be configured to send notifications when checkpoints
(thresholds) have been crossed in the log file. These notifications are in the form of
SNMP traps.