RMON Configuration 363
With the history data management function, you can configure network devices
to collect history data, sample and store data of a specific port periodically.
Statistics group
Statistics group contains the statistics of each monitored port on a switch. An
entry in a statistics group is an accumulated value counting from the time when
the statistics group is created.
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” on page 353.
Tab le 279 Configure RMON
Operation Command Description
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
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