# Adding a Fabric Messages

Message | User Action
Fabric fabricname already exists! Or Fabric name already in use. | Specify a name for the fabric that is not already assigned to an existing fabric.
Unknown host hostname. | Verify that the host name specified for the IP address is a valid hostname for a switch in the fabric, and that the switch is reachable from the user’s workstation.
Invalid IP Address | Verify that the IP address specified is syntactically correctly.
Unable to login to switch. Reason: … | Verify that the user name and password entered in the dialog box are valid login information for an account on the switch specified by the IP address field.
Verify correct user name and password and retry. | Either the user name or password is incorrect. Enter the correct values and retry.
The entry switch is of a type that is not supported. | The switch hardware or firmware version of the switch at the specified IP address is not supported. Choose the IP address of a different switch, or update the firmware using telnet or the appropriate version of the application.
The maximum number of management sessions on the entry switch has been exceeded. | The application cannot establish a session with the fabric because too many sessions are already open. Close any other application or telnet sessions to the fabric and try again.