Specifications

Design Considerations
16-2 RMON Configuration
Design Considerations
TheB2supportsRMONPacketCapture/FilterSamplingthroughboththeCLIandMIBs,butwith
thefollowingconstraints:
History Records periodic statistical
samples from a network.
Sample period, number of
samples and item(s) sampled.
“show rmon history” on
page 16-6
“set rmon history” on
page 16-7
“clear rmon history” on
page 16-7
Alarm Periodically gathers
statistical samples from
variables in the probe and
compares them with
previously configured
thresholds. If the monitored
variable crosses a
threshold, an event is
generated.
Alarm type, interval, starting
threshold, stop threshold.
“show rmon alarm” on
page 16-9
“set rmon alarm properties”
on page 16-10
“set rmon alarm status” on
page 16-11
“clear rmon alarm” on
page 16-12
Event Controls the generation and
notification of events from
the device.
Event type, description, last
time event was sent.
“show rmon event” on
page 16-13
“set rmon event properties”
on page 16-14
“set rmon event status” on
page 16-15
“clear rmon event” on
page 16-15
Filter Allows packets to be
matched by a filter
equation. These matched
packets form a data stream
or “channel” that may be
captured.
Packets matching the filter
configuration.
“show rmon channel” on
page 16-17
“set rmon channel” on
page 16-18
“clear rmon channel” on
page 16-19
“show rmon filter” on
page 16-19
“set rmon filter” on
page 16-20
“clear rmon filter” on
page 16-21
Packet
Capture
Allows packets to be
captured upon a filter
match.
Packets matching the filter
configuration.
“show rmon capture” on
page 16-22
“set rmon capture” on
page 16-23
“clear rmon capture” on
page 16-24
Table 16-41 RMON Monitoring Group Functions and Commands (Continued)
RMON
Group What It Does... What It Monitors... CLI Command(s)