Abstract: A wireless IO-link communication network has a main master and at least one device which have a bidirectional wireless communication between the main master and the at least one device, as well as a backup master which is connected to the main master and the at least one device and is configured to control the at least one device. In a method for operating the IOLW communication network with such a backup master, the backup master controls the at least one device instead of the main master.

Abstract: Equipment for the wireless operation of IO-link devices in an IO-link communication network, including an IO-link master connected to a fieldbus a wire-bonded communication network and at least one wirelessly communicating IO-link device, has a wire-bonded IO-link device serving as a wireless IO-link device interface for the wireless communication with the at least one wirelessly communicating IO-link device.

Abstract: Equipment for the wireless operation of IO-link devices in an IO-link communication network, including an IO-link master connected to a fieldbus a wire-bonded communication network and at least one wirelessly communicating IO-link device, has a wire-bonded IO-link device serving as a wireless IO-link device interface for the wireless communication with the at least one wirelessly communicating IO-link device.

Abstract: A wireless IO-link communication network has a main master and at least one device which have a bidirectional wireless communication between the main master and the at least one device, as well as a backup master which is connected to the main master and the at least one device and is configured to control the at least one device. In a method for operating the IOLW communication network with such a backup master, the backup master controls the at least one device instead of the main master.

Abstract: Apparatus for securely transmitting data between a mobile subscriber (1) having at least one transmission apparatus (2) and a stationary receiver (3), wherein the mobile subscriber (1) can change between a plurality of radio cells (Cell 1, Cell 2, Cell 3) and each radio cell (Cell 1, Cell 2, Cell 3) has at least one transmission apparatus (AP1, AP2, AP3), wherein the at least one transmission apparatus (AP1 to AP3) is also connected in a wired manner to at least one network (LAN A, LAN B), wherein the stationary receiver (3) is likewise connected in a wired manner to the at least one network (LAN A, LAN B), and both the wireless transmission between the mobile subscriber (1) and the transmission apparatus (AP1 to AP3) respectively associated with the latter and the wired data transmission between the transmission apparatus (AP1 to AP3) and the at least one associated network (LAN A, LAN B) are carried out redundantly, and the stationary receiver (3) is redundantly connected in a wired manner to the network (L

Abstract: Method for transferring data from a data source (1) to a data sink (2) and/or vice versa via at least two transmission links (5, 6) that operate independently of one another and wirelessly. A splitter (3) is supplied with the data from the data source (1) and the splitter (3) supplies the data to the at least two transmission links (5, 6). Also, the data transferred via the two transmission links (5, 6) are supplied to a combiner (4) and the combiner (4) forwards the received data to the data sink (2) on the basis of prescribed criteria. The invention is characterized in that the transfer of the data between the data source (1) and the data sink (2) and/or vice versa takes place with a different time response on the at least two wireless transmission links (5, 6) while the parallel redundancy protocol (PRP) is applied.

Abstract: Apparatus for securely transmitting data between a mobile subscriber (1) having at least one transmission apparatus (2) and a stationary receiver (3), wherein the mobile subscriber (1) can change between a plurality of radio cells (Cell 1, Cell 2, Cell 3) and each radio cell (Cell 1, Cell 2, Cell 3) has at least one transmission apparatus (AP1, AP2, AP3), wherein the at least one transmission apparatus (AP1 to AP3) is also connected in a wired manner to at least one network (LAN A, LAN B), wherein the stationary receiver (3) is likewise connected in a wired manner to the at least one network (LAN A, LAN B), and both the wireless transmission between the mobile subscriber (1) and the transmission apparatus (AP1 to AP3) respectively associated with the latter and the wired data transmission between the transmission apparatus (AP1 to AP3) and the at least one associated network (LAN A, LAN B) are carried out redundantly, and the stationary receiver (3) is redundantly connected in a wired manner to the network (L

Abstract: The invention relates to a method for creating a DHCP network device configuration, wherein the parameter allocation by a DHCP server is performed using Option 82, and the assignment for the IP address to be allocated to a network device is determined on the basis of the topological information. The topological information is provided to the DHCP server by the requesting device and a DHCP relay agent, and the relay agent acts on each DHCP message sent by a device in the network by means of an additional DHCP Option 82 and sends the messages via unicast to the DHCP server, whereas the standard DHCP message is forwarded. According to the invention, a network device sends, in addition to the regular DHCP discovers via MAC broadcast, DHCP messages via MAC multicast to a MAC multicast address, and from this MAC multicast sends unique information via unicast to the DHCP server by means of a DHCP relay agent, since the associated network device filters the multicast.

Abstract: Configuration errors on interconnected network infrastructure devices are detected in a network where each network infrastructure device supplies information about its own configuration at its own network interface and sends this information to a neighboring network infrastructure device via a discovery protocol. Furthermore each network infrastructure device removes from the network the configuration data received at its interfaces in order to prevent this data from being passed on to other network infrastructure devices, and the received configuration data of the neighboring network infrastructure devices is stored as a data structure on one of the network infrastructure devices in a storage unit. The information about the neighboring network infrastructure devices is made available by the storage device of the first network infrastructure device and used to detect error configurations between the respective devices by comparison with the data deposited in the storage unit.

Abstract: In a network having a plurality of nodes each with at least two ports and lines or links connecting the ports in a ring. The improvement wherein one of the nodes is configured as a ring manager capable of configuring the other nodes via the links. Thus starting from a node used as ring manager the redundancy protocol of the other nodes is automatically configured via the lines by means of data packets containing the configuration data, which data packets are sent out via the lines by the ring manager.

Abstract: A network management station connected to a network infrastructure is configured for the acquisition and registration of at least a [portion of the network infrastructure. A selected region only of the network infrastructure is displayed graphically on the screen of the network management station.