Intel 480T, Руководство пользователя

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C H A P T E R 1 7 Using Intel
®
Device View
303
For complete information on using Intel Device View, refer to the
program’s online help or see the
User Guide on the Intel Device View
installation CD-ROM.
Viewing RMON Information
The remote monitoring (RMON) specification extends SNMP
functionality to look at traffic patterns on the network instead of
merely looking at the traffic for an individual device. The following
RMON groups are supported:
• Group 1 (Statistics): Monitors utilization and error statistics for
each network segment (10Mbps or 100Mbps).
• Group 2 (History): Records periodic statistical samples from
variables available in the statistics group.
• Group 3 (Alarms): Allows you to set a sampling interval and
alarm thresholds for statistics. When a threshold is passed, the
switch creates an event. For example, you might set an alarm if
switch utilization exceeds 30%.
• Group 9 (Events): Provides notification and tells the switch what
to do when an event occurs on the network. Events can send a trap
to a trap receiving station or place an entry in the log table, or both.
For example, when the switch experiences an RMON Event, it
sends out an Alarm. The switch also keeps a log that shows a list of
the RMON Events and RMON Alarms that have occurred on the
switch.