User guide

Key Concepts 91
hardware configuration. This is the information that the refresh operation
retrieves for each device in the inventory file.
Information Retrieved by Refresh
The refresh operation retrieves detailed information about a device, some
of which is required by other tools within 3Com Network Administrator.
This includes:
■ Pinging the device to verify that the device still exists on the network.
■ Reading the basic SNMP information of the device, such as its MAC
address, name and location.
■ Determining any services it supports, such as Telnet and Web
management.
■ Establishing the detailed hardware and software configuration of the
device, such as unit and port information and the agent software
version it is running, by using SNMP.
Performing Refresh
3Com Network Administrator performs a refresh at the following times:
■ After an Import — a refresh operation is always initiated
automatically on a list of devices that were successfully imported from
a CSV file or HP OpenView.
■ As a Manual Operation — you can request a refresh on some or all
devices in the current inventory. This is done by selecting the relevant
devices and then selecting Device > Refresh Information. You may
wish to do this if you have re-configured some of your devices. For
example, if you have added a new unit to a stack.
■ As a Scheduled Operation — you can run an automated refresh
operation at periodic intervals by setting the frequency from the
Refresh tab of the Options dialog.
3Com Network Administrator for HP OpenView.book Page 91 Wednesday, November 12, 2003 2:33 PM