A CCESS GATEWAYSystem Administration 195 PMS billing for a port is enabled only if PMS Services is globally enabled AND theper-port enable PMS billing parameter is set. Facebook authentication for a port is enabled only if Port-Based Policies is enabledand that port allows Facebook as an authentication type.9. Click on the Add button to save your changes (the message: Entry added or updated inthe location file appears), or click on the Reset button if you want to reset all the valuesto their previous state.Updating a Port-Location AssignmentThe procedure for updating a port-location assignment is similar to adding a port-locationassignment. The difference between the two procedures is how they are presented to you. Forexample, if you already have port-locations assigned and you enter an existing “port” value,each data field that you go through (port, location, state, and description) displays the valuecurrently assigned to the field.To update a Port-Location assignment, simply update the fields with new values.Exporting Port-Location Assignments {Export}This procedure shows you how to export your current port-location assignments to the“location.txt” file. The location.txt file is stored in: /flash/location.txt (resident in the AccessGateway’s flash memory).If you have updated a port-location assignment, you may want to change itsdescription to distinguish from the old assignment. Although the old assignmentwill no longer exist in the system, a meaningful description can often be avaluable quick reference guide.Exporting your current port-location assignments to the Access Gateway’s flashmemory will overwrite the existing location.txt file.