3Com 4500 PWR 26-Port Configuration Manual page 642

S tatistics 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 th
The statistics include the number of the following items: collisions, packets with Cyclic Redundancy
Check (CRC) errors, undersize (or oversize) packet
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.
RMO N Configuration
Before performin
i nformation about SN P agent config
Follow these steps to configure RMON:
To do...
Enter system view
Add an event entry
Add an alarm entry
Add an extended
alarm entry
Enter Ethernet port
view
Add a history entry
Add a stati stics
entry
g RMON configu ration, make sure the S
M uration, refer to section
Use the 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 | absolu
rising_threshold threshold-va
event-entry1 falling_threshold
threshold-value2 event-entry2 [ own
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 | cyc
cycle-period } [ owner text ]
interface interface-type interface-number
rmon history entry-number buckets
number interval sampling-interval [ owner
text ]
rmon statistics entry-number [ owner text ]
e time when the statistics group is created.
s, broadcast packets, multicast packets, and
NMP agents are correc
Configu
te }
lue1
er text ]
le
53-3
tly configur ed. For the
ring Basic SNMP Functions
Remarks
—
Optional
Optional
Before adding an alarm entry,
you need to use the rmon
event command to define th
event to be referenced by the
alarm entry.
Optional
Before addin g an extended
alarm entry, you need to use
the rmon event command to
define the ev ent to be
referenced by the extended
alarm entry .
—
Optional
Optional
.
e