3Com 3C16990, Руководство пользователя

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RMON 9-11
RMON
Using the Remote Monitoring (RMON) capabilities of the Switch allows
network administrators to make decisions about improving Switch
efficiency and reducing the load on the network.
The following sections explain more about the RMON concept and the
RMON features supported by the Switch 9000.
You can only use the RMON features of the Switch if you have an
RMON management application, such as the RMON application
supplied with 3Com’s Transcend® Enterprise Manager.
About RMON RMON is the common abbreviation for the Remote Monitoring
Management Information Base (MIB) system defined by the Internet
Engineering Task Force (IETF) documents RFC 1271 and RFC 1757,
which allows you to monitor LANs remotely.
show log {<priority>} {<subsystem>}
Allows you to display the a snapshot of the log.
Options include:
■
priority — Filters the log to display messages with
the selected priority or higher (more critical).
Priorities include critical, warning, and informational.
If not specified, informational priority messages and
higher are displayed.
■
subsystem — Filters the log to display messages
associated with the selected Switch subsystem.
Subsystems include Syst, STP, Brdg, SNMP, Telnet,
VLAN, and Port. If not specified, all subsystems are
displayed.
show log config
Allows you to display the log configuration, including
the syslog host IP address, the priority level of
messages being logged locally, and the priority level of
messages being sent to the syslog host.
clear counters
Allows you to clear all statistical counters for the
Switch and ports.
clear log
Allows you to clear the log.
Table 9-4 Logging Commands (continued)
Command Description
SW9000.BK Page 11 Wednesday, April 1, 1998 11:00 AM