2-3
The statistics include the number of the following items: collisions, packets with cyclic redundancy
check (CRC) errors, undersize (or oversize) packets, broadcast packets, multicast packets, and
received bytes and packets.
With the RMON statistics management function, you can monitor the use of a port and make statistics
on the errors occurred when the ports are being used.
RMON Configuration
Before performing RMON configuration, make sure the SNMP agents are correctly configured. For the
information about SNMP agent configuration, refer to Configuring Basic SNMP Functions.
Follow these steps to configure RMON:
To do… Use the command… Remarks
Enter system view system-view —
Add an event entry
rmon event event-entry [ description
string ] { log | trap trap-community |
log-trap log-trapcommunity | none }
[ owner text ]
Optional
Add an alarm entry
rmon alarm entry-number
alarm-variable sampling-time { delta |
absolute } rising_threshold
threshold-value1 event-entry1
falling_threshold threshold-value2
event-entry2 [ owner text ]
Optional
Before adding an alarm entry,
you need to use the rmon
event command to define the
event to be referenced by the
alarm entry.
Add an extended alarm
entry
rmon prialarm entry-number
prialarm-formula prialarm-des
sampling-timer { delta | absolute |
changeratio } rising_threshold
threshold-value1 event-entry1
falling_threshold threshold-value2
event-entry2 entrytype { forever |
cycle cycle-period } [ owner text ]
Optional
Before adding an extended
alarm entry, you need to use
the rmon event command to
define the event to be
referenced by the extended
alarm entry.
Enter Ethernet port view interface interface-type
interface-number —
Add a history entry rmon history entry-number buckets
number interval sampling-interval
[ owner text ] Optional
Add a statistics entry rmon statistics entry-number [ owner
text ] Optional
z The rmon alarm and rmon prialarm commands take effect on existing nodes only.
z For each port, only one RMON statistics entry can be created. That is, if an RMON statistics entry is
already created for a given port, you will fail to create another statistics entry with a different index
for the same port.