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Syntax
rmon history entry-number buckets number interval interval [ owner text ]
undo rmon history entry-number
Default
No RMON history control entries exist.
Views
Ethernet interface view
Predefined user roles
network-admin
Parameters
entry-number: Specifies a history control entry index in the range of 1 to 65535.
buckets number: Specifies the expected maximum number of samples to be retained for the entry,
in the range of 1 to 65535. RMON can retain a maximum of 50 samples for each history control entry.
If the expected bucket size exceeds the available history table size, RMON sets the bucket size as
closely to the expected bucket size as is possible. However, the granted bucket size will not exceed
50. For example, the bucket size for a history control entry will be 30 if the expected bucket size is set
to 55, but the available bucket size is only 30.
interval interval: Specifies the sampling interval in the range of 5 to 3600 seconds.
owner text: Specifies the entry owner, a case-sensitive string of 1 to 127 characters.
Usage guidelines
You can create RMON history control entries only for Layer 2 Ethernet interfaces.
The system supports a maximum of 100 history control entries.
If an Ethernet interface has a history control entry, RMON periodically samples packet statistics on
the interface and stores the samples to the history table. When the bucket size for the history control
entry is reached, RMON overwrites the oldest sample with the most recent sample.
You can create multiple RMON history control entries for an Ethernet interface.
Examples
# Create RMON history control entry 1 for GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] rmon history 1 buckets 10 interval 5 owner user1
Related commands
display rmon history
rmon prialarm
Use rmon prialarm to create an RMON private alarm entry.
Use undo rmon prialarm to remove an RMON private alarm entry.
Syntax
rmon prialarm entry-number prialarm-formula prialarm-des sampling-interval { absolute | delta }
[ startup-alarm { falling | rising | rising-falling } ] rising-threshold threshold-value1 event-entry1
falling-threshold threshold-value2 event-entry2 entrytype { forever | cycle cycle-period } [ owner
text ]
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