User guide

Key Considerations 105
Updating the
Inventory
When the refresh operation completes the Summary dialog is displayed.
The Summary dialog is not displayed if the operation was run as a
scheduled refresh and it completed with the Progress dialog in its
minimized form. Instead the Update button becomes enabled and when
it is clicked will display the Summary dialog.
When the Summary dialog is closed the inventory is updated with the
new information.
If you are updating the inventory you should be aware of the following
rules:
■ If a new device was successfully refreshed as a result of an import
operation it will be added to the inventory.
■ If an existing device was refreshed and found to have changed
configuration (for example, a unit was added), then the inventory will
be updated to reflect the new configuration.
■ If an attempt was made to refresh an existing device but the device
did not respond (or it was found to no longer be a 3Com device) then
it will not be removed from the inventory. The information held for
that device will remain unchanged and a warning will be given in the
Refresh report.
■ Devices are never deleted from the inventory by the refresh operation.
The exception to this is if two separate devices (with distinct IP
addresses) are combined (using stacking) to form a single device. In
this case, one of the devices will be deleted and the other updated to
reflect the combined new configuration.
Subnet Creation Prior to being added to the inventory, the devices are sorted into the
subnets they belong to. These subnets appear in the group tree on the
device window. Subnets are not created using the subnet information
provided by the import (for example, the subnet mask in the CSV record).
Instead, the subnet masks obtained from the devices during refresh are
used.
Subnets are only created based on a device’s primary IP address (supplied
during import) and its corresponding subnet mask.
For example, consider a router that has two interfaces:
192.168.1.1/24 and 192.168.2.1/24
3Com Network Administrator for HP OpenView.book Page 105 Wednesday, November 12, 2003 2:33 PM