3Com 3C16630A User Manual page 114

Management module/advanced rmon module
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E-12
A
E: RMON
A
M
PPENDIX
AND
DVANCED
ANAGEMENT
Broadcast Storms are capable of using most of the available bandwidth
of your network. If you set up an alarm on the Broadcast Frames
Received counter of a port, with the 'Notify and Blip' action (see
Table
E-2
on page E-10), on the high threshold. If a broadcast storm occurs
on that port and the counter crosses the high threshold, the port will
disabled for 5 seconds, allowing the storm to subside and preventing
the storm from reaching the rest of the network.
Audit Log
The Module keeps an audit log of all management user sessions,
providing a record of changes to the configuration database (MIB). The
log can be read only by a manager at the security (i.e. highest) access
level using an SNMP network manager.
Each entry in the log is in the format:
Entry number timestamp user ID item ID (including qualifier) new
value of item
There is a limit of 40 records on the number of changes stored. The
oldest records are overwritten first.
DUA1663-0BAA03

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