HP 8000M - Manual (Page 76)

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Using HP TopTools or Other SNMP Tools To Monitor and Manage the Switch
Advanced Management: RMON and HP Extended RMON Support
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C a u t i o n Deleting the community named “public” disables many network management
functions (such as auto-discovery, traffic monitoring, and threshold setting).
If security for network management is a concern, it is recommended that you
change the write access for the “public” community to “Restricted”.
N o t e SNMP community and trap receiver configurations are activated when saved.
Rebooting the switch is not necessary unless you have also configured other
parameters that require rebooting in order to be activated. (For more on when
it is necessary to reboot, refer to “Rebooting the Switch” on page 4-12.)
Advanced Management: RMON and HP
Extended RMON Support
The switch supports RMON (Remote Monitoring) and HP Extended RMON
on all connected network segments. This allows for troubleshooting and
optimizing your network.
RMON
The following RMON groups are supported:
■ Ethernet Statistics (except the numbers of packets of different frame sizes)
■ Alarm
■ History (of the supported Ethernet statistics)
■ Event
You can access the Ethernet statistics, Alarm, and Event groups from the HP
TopTools for Hubs & Switches network management software included with
your switch.
Extended RMON
Extended RMON provides network monitoring and troubleshooting informa-
tion that analyzes traffic from a network-wide perspective. Extended RMON
notifies you about network problems and identifies the end node at fault. That
information can be used to set up RMON to study the problem more closely,
if desired. Because it is based on detailed statistical sampling, Extended
RMON lessens the load on devices and network bandwidth.