3Com Switch 4200G Configuration Guide

RMON Configuration 287
With the RMON statistics management function, you can monitor the usage of a port
and make statistics on the errors occurred when the ports are being used.
RMON Configuration
Prerequisites Before performing RMON configuration, make sure the SNMP agents are correctly
configured. For the information about SNMP agent configuration, refer to the
“Configuring Basic SNMP Functions” part in SNMP Configuration Operation Manual.
Configuring RMON
■ The rmon alarm and rmon prialarm commands take effect on existing nodes
only.
■ 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, creation of another entry with a
different index for the same port will not succeed.
Table 254 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
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 referenced by the extended
alarm entry.
Enter Ethernet port
view
interface gigabitethernet
interface-number
-
Add a history control
entry
rmon history entry-number
buckets number interval
sampling-interval [ owner text ]
Optional
Add a statistics entry rmon statistics entry-number [
owner text ]
Optional