Abstract: According to one embodiment, an X-ray diagnosis apparatus includes a table, an imaging unit, and processing circuitry. The table includes a table top on which a subject is placed. The imaging unit includes an X-ray tube which emits X-rays to the subject and an X-ray detector which detects the X-rays. The processing circuitry detects contact between an object and at least one of the imaging unit and the table. The processing circuitry executes control to display contact position information relating to a position in contact with the object based on a detection result.

Abstract: An LP table retains a combination of a physical port and a VLAN identifier in association with a logical port. When a frame is received at the physical port, a table processing unit acquires a logical port based on the LP table. An FDB processing unit learns a source MAC address contained in the received frame in association with the logical port acquired by the table processing unit to an FDB. A plurality of logical ports are set for the physical port by the LP table. A loop prevention unit prohibits frame relay between the plurality of logical ports set for the physical port.

Abstract: A controller of a tag conversion apparatus configured holds tag conversion information associating addresses of communication apparatuses and information on tags of tagging schemes for network separation, analyzes a frame input from one of the plurality of ports and determine a current tagging scheme of the frame, determines a tagging scheme associated with a destination address of the frame based on the tag conversion information, and converts the frame to a frame of the tagging scheme associated with the destination address based on the tag conversion information when the tagging scheme associated with the destination address and the current tagging scheme are different.

Abstract: A logical port table retains a combination of a physical port and a VLAN identifier in association with a logical port. An FDB retains a correspondence relation between a MAC address and the logical port. When a frame is received at the physical port, a table processing unit acquires the logical port based on the logical port table. An FDB processing unit learns a source MAC address contained in the frame in association with the logical port acquired by the table processing unit to the FDB.

Abstract: An LP table retains a combination of a physical port and a VLAN identifier in association with a logical port. When a frame is received at the physical port, a table processing unit acquires a logical port based on the LP table. An FDB processing unit learns a source MAC address contained in the received frame in association with the logical port acquired by the table processing unit to an FDB. A plurality of logical ports are set for the physical port by the LP table. A loop prevention unit prohibits frame relay between the plurality of logical ports set for the physical port.

Abstract: A controller of a tag conversion apparatus configured holds tag conversion information associating addresses of communication apparatuses and information on tags of tagging schemes for network separation, analyzes a frame input from one of the plurality of ports and determine a current tagging scheme of the frame, determines a tagging scheme associated with a destination address of the frame based on the tag conversion information, and converts the frame to a frame of the tagging scheme associated with the destination address based on the tag conversion information when the tagging scheme associated with the destination address and the current tagging scheme are different.

Abstract: A network system has lower switches and upper switches connected to the lower switches. Each of the upper switches includes a connection information notifying means for notifying connected lower switch list informations each of which includes an identification information on each of the lower switches connected to each of the upper switches, to the lower switches connected to each of the upper switches. Each of the lower switches includes a comparison determination means for comparing the connected lower switch list informations notified by the connection information notifying means, in order to determine a connection state between the upper switches and the lower switches.

Abstract: A network system includes lower switches and upper switches connected to the lower switches. Each of the upper switches transmits a first notification frame containing a connected lower switch number information indicative of the number of the lower switches connected to each of the upper switches, to the lower switches connected to each of the upper switches. Each of the lower switches configures a link aggregation group for ports which received the first notification frames each of which contains a maximum value of the connected lower switch number information among the connected lower switch number informations contained in the received first notification frames.

Abstract: A network system includes a plurality of lower switches, a plurality of upper switches, and a link group for interconnecting the plurality of lower switches to the plurality of upper switches in a multipoint-to-multipoint relationship. The link group includes a sub-link for interconnecting the plurality of lower switches to the plurality of upper switches in a point-to-point relationship as one logical link and a main link for interconnecting the plurality of lower switches to the plurality of upper switches in a point-to-multipoint relationship as one logical link. The plurality of lower switches are each set such that a broadcast frame with a broadcast address set as a destination is transmitted to the plurality of upper switches through the sub-link. The plurality of upper switches each receive the broadcast frame and resister a source address contained in the broadcast frame into an FDB of the plurality of upper switches.

Abstract: FSs (16a to 16h) are each connected to IFSs (14a to 14x). Each of the FSs (16a to 16h) transmits a setting frame (60) that includes an FS number to the connected IFSs (14a to 14x). Each of the IFSs (14a to 14x) registers, in an LAG setting table, the FS numbers included in the received setting frames (60) and ports that have received the same in association with each other. Then, each of the IFSs (14a to 14x) sorts ports (52a to 52h) in an order of the associated FS numbers, and sets each of LAGs (18a to 18x) in a common order.

Abstract: A network relay system (10) includes a plurality of IFSs (14) and a plurality of FSs (16). The IFSs (14a to 14x) are each connected to the FSs (16a to 16h) through physical lines. In the IFSs (14), an LAG is set for ports connected to the FSs (16). The IFSs (14) and the FSs (16) transmit/receive a detection frame to/from each other, and when the detection frame fails to be received, it is determined that a failure has occurred within the network relay system (10). When one of the FSs (16) determines that a failure has occurred, the one of the FSs (16) transmits a failure notification frame to the plurality of IFSs (14), and each of the plurality of IFSs (14) excludes the port that has received the failure notification frame from the LAG.

Abstract: A switching hub includes a plurality of ports including receiving ports for receiving a frame from outside and transmitting ports for transmitting the frame to outside, a distributed ID calculation portion for calculating a distributed ID based on the frame received by one of the receiving ports of the plurality of ports and adding the distributed ID to the frame, a first distribution table that stores a port ID for identifying the transmitting port for transmitting the frame associated with the distributed ID to outside, a second distribution table that stores the port ID associated with the distributed ID so that the correspondence relation is different from that of the first distribution table, a distribution table identification information adding portion for adding first table identification information for identifying the first distribution table or second table identification information for identifying the second distribution table to the frame, and a transmission distribution table access portion for

Abstract: A network system has lower switches and upper switches connected to the lower switches. Each of the upper switches includes a connection information notifying means for notifying connected lower switch list informations each of which includes an identification information on each of the lower switches connected to each of the upper switches, to the lower switches connected to each of the upper switches. Each of the lower switches includes a comparison determination means for comparing the connected lower switch list informations notified by the connection information notifying means, in order to determine a connection state between the upper switches and the lower switches.

Abstract: A network system includes lower switches and upper switches connected to the lower switches. Each of the upper switches transmits a first notification frame containing a connected lower switch number information indicative of the number of the lower switches connected to each of the upper switches, to the lower switches connected to each of the upper switches. Each of the lower switches configures a link aggregation group for ports which received the first notification frames each of which contains a maximum value of the connected lower switch number information among the connected lower switch number informations contained in the received first notification frames.

Abstract: A network system includes a plurality of lower switches, a plurality of upper switches, and a link group for interconnecting the plurality of lower switches to the plurality of upper switches in a multipoint-to-multipoint relationship. The link group includes a sub-link for interconnecting the plurality of lower switches to the plurality of upper switches in a point-to-point relationship as one logical link and a main link for interconnecting the plurality of lower switches to the plurality of upper switches in a point-to-multipoint relationship as one logical link. The plurality of lower switches are each set such that a broadcast frame with a broadcast address set as a destination is transmitted to the plurality of upper switches through the sub-link. The plurality of upper switches each receive the broadcast frame and resister a source address contained in the broadcast frame into an FDB of the plurality of upper switches.

Abstract: A network relay system (10) includes a plurality of IFSs (14) and a plurality of FSs (16). The IFSs (14a to 14x) are each connected to the FSs (16a to 16h) through physical lines. In the IFSs (14), an LAG is set for ports connected to the FSs (16). The IFSs (14) and the FSs (16) transmit/receive a detection frame to/from each other, and when the detection frame fails to be received, it is determined that a failure has occurred within the network relay system (10). When one of the FSs (16) determines that a failure has occurred, the one of the FSs (16) transmits a failure notification frame to the plurality of IFSs (14), and each of the plurality of IFSs (14) excludes the port that has received the failure notification frame from the LAG.

Abstract: FSs (16a to 16h) are each connected to IFSs (14a to 14x). Each of the FSs (16a to 16h) transmits a setting frame (60) that includes an FS number to the connected IFSs (14a to 14x). Each of the IFSs (14a to 14x) registers, in an LAG setting table, the FS numbers included in the received setting frames (60) and ports that have received the same in association with each other. Then, each of the IFSs (14a to 14x) sorts ports (52a to 52h) in an order of the associated FS numbers, and sets each of LAGs (18a to 18x) in a common order.

Abstract: A switching hub includes a plurality of ports including receiving ports for receiving a frame from outside and transmitting ports for transmitting the frame to outside, a distributed ID calculation portion for calculating a distributed ID based on the frame received by one of the receiving ports of the plurality of ports and adding the distributed ID to the frame, a first distribution table that stores a port ID for identifying the transmitting port for transmitting the frame associated with the distributed ID to outside, a second distribution table that stores the port ID associated with the distributed ID so that the correspondence relation is different from that of the first distribution table, a distribution table identification information adding portion for adding first table identification information for identifying the first distribution table or second table identification information for identifying the second distribution table to the frame, and a transmission distribution table access portion for