Abstract: Upon receiving a copy of upstream communication from a first switch, a second switch specifies an NF apparatus serving as a transmission source of the upstream communication, based on apparatus information indicating a MAC address of each apparatus and a transmission source MAC address contained in the copy of the upstream communication. The second switch refers to the apparatus information, and MAC address information indicating, for each port of the switch, a MAC address of an apparatus connected via the port, thereby specifying a port of the second switch connected to the NF apparatus, and a MAC address of the transmission source via the port. The second switch stores session information in which information on the specified port and MAC address is associated with header information set for the copy of the upstream communication. Upon receiving downstream communication, the second switch transfers the downstream communication to the NF apparatus.

Abstract: Panel units (24a to 24d) continuing an operation indicating panel (20) each have a rectangular surface S with length and width each being substantially an integral multiple of a predetermined reference size (L). The panel units (24a and 24d) are placed so that their surfaces S may be adjacent to one another. A whole surface (AS) consisting of the surfaces S of all the panel units (24a to 24d) is formed in a rectangular shape with length and width each being substantially an integral multiple of the predetermined reference size (L). The arrangement and the like of the panel units (24a to 24d) can be easily changed.

Abstract: In a display and input device (CP) displaying information on a display (DP) and performing changing of the information and communication through switch operating means (CSW1), the switch operating means (CSW1) are arranged on the left and right edges of the display (DP), opaque members among members forming the switch operating means (CSW1) are arranged outside the screen of the display (DP), and only transparent members are arranged on the display (DP). Thus, a switch operation can be performed while recognizing functions of the switch operating means (CSW1) and the switch operating means (CSW1) having the stroke feeling and click feeling of a mechanical switch so that an operating environment having excellent operability and implementing reliable input can be obtained.

Abstract: A display unit with touch panel includes a press detection switch for detecting a press on a touch panel at a pressure exceeding a predetermined level so as to output a press detection signal, a driving-signal generating circuit responding to the press detection signal to generate a driving signal, a driving portion actuated by the driving signal to drive the touch panel into displacement thereby providing an operator with a tactile feedback, and an AND circuit for outputting an AND signal upon receipt of both of a coincidence detection signal from a coincidence detecting circuit and the press detection signal from the press detecting switch, and a gate circuit for inhibiting a passage of the operated-position signal from the operated-position detecting circuit when the AND signal from the AND circuit is not supplied and permitting the passage of the operated-position signal when the AND signal from the AND circuit is supplied.