The IP device info tool is a “dashboard” for a given IP device showing relevant information. It presents recent events for the device, if any. If the device is a switch or router a switch port and/or router interface view is given.
The PortAdmin tool is linked from IP Device Info under Actions|Configure ports. PortAdmin lets you configure vlan values and descriptions of switch ports. This will require that you have configured SNMP write support for the switch. Read more about PortAdmin.