RMON 5-29
About Default Alarm Settings
A new or initialized Switch has four alarms defined
for each port:
■Bandwidth used
■Broadcast bandwidth used
■Percentage of packets forwarded
■Errors per 10,000 packets
The default values for each of these alarms are
given in Tab le 5-4 .
About the Audit Log
The Switch keeps an audit log of all management
user sessions, providing a record of changes to any
MIB including the RMON MIB. The log can only be
read by users at the security access level using an
SNMP Network Manager.
Each entry in the log contains information in the fol-
lowing order:
■Entry number
■Timestamp
■User ID
■Item ID (including qualifier)
■New value of item
There is a limit of 16 records on the number of
changes stored. The oldest records are overwritten
first.
Tab le 5- 4 Initial settings for the default alarms
Statistic High
Threshold Low
Threshold
Recovery
Samples
per
average
Period
Bandwidth
used Value : 85%
No action
Valu e: 50%
No action
460 secs
Broadcast
bandwidth
used
Valu e: 20%
Notify and
blip
Valu e: 10%
No action
420 secs
Percentage of
packets
forwarded
Valu e: 85%
No action
Valu e: 50%
No action
460 secs
Errors per
10,000 packets Value : 200
Notify
Valu e: 100
No action
460 secs