Resetting an extension node notifies the SNMP Agent managing the extension node to remove the extension node from the switch network.
Use the SMIT menus for removing extension node information as described in Removing extension nodes and extension node adapters. Specify yes for Reset the extension node?.
You can also use the SMIT menus for running the enadmin command as described in Reconfiguring extension nodes and extension node adapters. Specify reset for Action to be performed on the extension node.
Use the enrmnode -r or enadmin -a reset commands to notify the SNMP Agent managing the extension node to remove the node from the switch network.
See the book PSSP: Command and Technical Reference for details on these commands.