60 CHAPTER 7: STATUS MONITORING AND STATISTICS
When using the RMON features of the Switch, note the following:
■ After the default sessions are created, they have no special status. You
can delete or change them as required.
■ The greater the number of RMON sessions, the greater the burden on
the management resources of the Switch. If you have many RMON
sessions, the forwarding performance of the Switch is not affected but
you may experience slow response times from the web interface.
Alarm Events You can define up to 200 alarms for the Switch. The events that you can
define for each alarm and their resulting actions are listed in Ta b l e 5
.
Ta b l e 4 RMON support supplied by the Switch
RMON group Support supplied by the Switch
Statistics A new or initialized Switch has one Statistics session per port.
History A new or initialized Switch has two History sessions per port.
These sessions provide the data for the Web interface history
displays:
■ 30 second intervals, 120 historical samples stored
■ 2 hour intervals, 96 historical samples stored
Alarms A new or initialized Switch has the following alarm(s) defined for
each port:
■ Broadcast bandwidth used
■ Percentage of errors over one minute
You can modify these alarms using an RMON management
application, but you cannot create or delete them.
You can define up to 200 alarms for the Switch.
For more information about the alarms setup on the Switch, see
“Alarm Events” on page 60 and “The Default Alarm
Settings” on page 61.
Events A new or initialized Switch has Events defined for use with the
default alarm system. See
“The Default Alarm Settings” on
page 61 for more information.
Ta b l e 5 Alarm Events
Event Action
No action
Notify only Send Trap.
dua1730-0bAA03.book Page 60 Monday, July 11, 2005 11:14 AM
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