Specifications

SecureStack A2 Configuration Guide 12-1
12
Configuring RMON
RMON (Remote Network Monitoring) provides comprehensive network fault diagnosis, planning,
and performance tuning information, and allows for interoperability between SNMP management
stations and monitoring agents. RMON extends the SNMP MIB capability by defining additional
MIBs that generate a much richer set of data about network usage.
These MIB “groups” each gather
specific sets of data to meet common network monitoring requirements.
12.1 RMON MONITORING GROUP FUNCTIONS
Table 12-1 lists the RMON monitoring groups supported on SecureStack A2 devices, each group’s
function and the elements it monitors, and the associated configuration commands needed.
Table 12-1 RMON Monitoring Group Functions and Commands
RMON
Group
What It Does... What It Monitors... CLI Command(s)
Statistics Records statistics measured
by the RMON probe for each
monitored interface on the
device.
Packets dropped, packets
sent, bytes sent (octets),
broadcast and multicast
packets, CRC errors,
oversized and undersized
packets, fragments, jabbers,
and counters for packets.
show rmon stats
(Section 12.2.1.1)
set rmon stats
(Section 12.2.1.2)
clear rmon stats
(Section 12.2.1.3)
History Records periodic statistical
samples from a network.
Sample period, number of
samples and item(s)
sampled.
show rmon history
(Section 12.2.2.1)
set rmon history
(Section 12.2.2.2)
clear rmon history
(Section 12.2.2.3)