3Com 4510G - Page 1002

17-4
To do… Use the command… Remarks
Create an entry in the alarm table
rmon alarm entry-number alarm-variable
sampling-interval { absolute | delta }
rising-threshold threshold-value1
event-entry1 falling-threshold
threshold-value2 event-entry2 [ owner text ]
Optional
Create an entry in the private
alarm table
rmon prialarm entry-number
prialarm-formula prialarm-des
sampling-interval { absolute | changeratio |
delta } rising-threshold threshold-value1
event-entry1 falling-threshold
threshold-value2 event-entry2 entrytype
{ forever | cycle cycle-period } [ owner text ]
Optional
z A new entry cannot be created if its parameters are identical with the corresponding parameters of
an existing entry Refer to
Table 17-1 for the parameters to be compared for different entries.
z The system limits the total number of each type of entries (Refer to Table 17-1 for the detailed
numbers). When the total number of an entry reaches the maximum number of entries that can be
created, the creation fails.
z When you create an entry in the history table, if the specified buckets number argument exceeds
the history table size supported by the device, the entry will be created. However, the validated
value of the buckets number argument corresponding to the entry is the history table size
supported by the device.
Table 17-1 Restrictions on the configuration of RMON
Entry Parameters to be compared
Maximum number of
entries that can be
created
Event
Event description (description string), event type (log,
trap, logtrap or none) and community name
(trap-community or log-trapcommunity)
60
History Sampling interval (interval sampling-interval) 100
Statistics
Only one statistics entry can be created on an
interface.
100
Alarm
Alarm variable (alarm-variable), sampling interval
(sampling-interval), sampling type (absolute or delta),
rising threshold (threshold-value1) and falling
threshold (threshold-value2)
60
Prialarm
Alarm variable formula (alarm-variable), sampling
interval (sampling-interval), sampling type (absolute,
changeratio or delta), rising threshold
(threshold-value1) and falling threshold
(threshold-value2)
50