Rmon Configuration - 3Com 7757 Configuration Manual

RMON Configuration

Configuration
Prerequisites
Configuring RMON
With the history data management function, you can configure network devices,
such as collecting history data, collecting the data of a specific port periodically
and saving them.
Statistics group
Statistics group contains the statistics of each monitored port on a network device.
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 usage of a
port and make statistics on the errors occurred when the ports are being used.
Before performing RMON configuration, make sure the SNMP agents are correctly
configured. For the information about SNMP agent configuration, refer to
"Configuring SNMP Basic Functions" on page 741.
Table 599 Configure RMON
Operation
Enter system view
Add an event entry
Add an alarm entry
Add an extended alarm entry
Enter Ethernet port view
Add a history entry
Command
system-view
rmon event event-entry
[ description string ] { log |
trap trap-community |
log-trap log-trapcommunity |
none } [ owner text ]
rmon alarm entry-number
alarm-variable
sampling-time { delta |
absolute } rising threshold
threshold-value1 event-entry1
falling threshold
threshold-value2 event-entry2
[ owner text ]
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 ]
interface interface-type
interface-number
rmon history entry-number
buckets number interval
sampling-interval [ owner
text ]
RMON Configuration 749
Description
-
Optional
Optional
Before adding an alarm entry,
you need to use the rmon
event command to define the
event referenced by the alarm
entry.
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.
-
Optional