Abstract: Computer networks are widely used, whereby in a lot of networks audio and/or media devices are integrated. It is a Computer network 1 suggested, comprising a number of devices D. #1. #2 and at least one media node M1, M2, M3, M4, wherein each of the devices D. #1. #2 comprises at least one network port 2, wherein the devices D. #1. #2 are interconnected with the network by network links 3, each link connecting two respective network ports 2, wherein the network ports 2 are adopted to nm a physical network discovery protocol, wherein the media node M1, M2, M3, M4 comprises a media network port 5, wherein the media node M1, M2, M3, M4 is interconnected with one of the devices D. #1. #2 by the network links 3, wherein the network link 3 connects the media network port 5 and the network port 2 of the device D. #1. #2, wherein the media node M1, M2, M3, M4 is adopted to run a media station support communication protocol and to provide media node information.

Abstract: Method and computer network for discovering services in a computer network using Domain Name System Service Discovery (DNS-SD), comprising as components at least a client and a server, the components can be linked by bridges and communicate by a network protocol, whereby the client and the server have a connection-oriented communication path between each other in the computer network, whereby in case of a connection loss one of the components being affected by the connection loss announces itself regularly using DNS-SD until the connection to the client is restored.

Abstract: A main device for use in a computer network, wherein the computer network has a topology and comprises a plurality of interconnected devices, wherein each of the plurality of interconnected devices comprises device information and at least one network port, wherein the devices are interconnected with the computer network by network links, each network link connecting two respective network ports, wherein the main device is interconnected with at least one of devices by a connection, and configured to obtain network information, wherein the network information comprised the topology of the computer network and the device information of the plurality of interconnected devices in the network, retrieve a stored network model, wherein the network model comprises a defined topology of the computer network and defined device information, and compare the network information with the network model to provide the differences between the network information and the network model as distinction data.

Abstract: The invention provides for a method for running a computer network and such a computer network. The computer network comprises a number of devices being arranged in a stable daisy-chained loop, wherein each device comprises a bridge having at least three ports, whereby during running the computer network each device can take different states to avoid a loop, and whereby in case of rebooting the ports of at least one of the devices keep their current port states.

Abstract: Streaming of high bandwidth audio streams using the Internet Protocol on an Ethernet network is common practice. The invention concerns an audio stream network 1 with network components, wherein the network components comprise at least one source device 2 and a plurality of receiving devices 3, 3a, 3b, 3c, wherein the network components are connected with a network connection, wherein the network connection is using the internet protocol, wherein the source device 2 is adapted to provide an audio stream 4a, 4b, 4c, wherein the audio stream 4a, 4b, 4c comprises at least one channel, wherein the receiving devices 3, 3a, 3b,3c are adapted to receive one or more audio stream 4a, 4b, 4c from at least one of the source devices 3, 3a, 3b, 3c.

Abstract: Computer networks are widely used, whereby in a lot of networks audio and/or media devices are integrated. It is a Computer network 1 suggested, comprising a number of devices D. #1. #2 and at least one media node M1, M2, M3, M4, wherein each of the devices D. #1. #2 comprises at least one network port 2, wherein the devices D. #1. #2 are interconnected with the network by network links 3, each link connecting two respective network ports 2, wherein the network ports 2 are adopted to nm a physical network discovery protocol, wherein the media node M1, M2, M3, M4 comprises a media network port 5, wherein the media node M1, M2, M3, M4 is interconnected with one of the devices D. #1. #2 by the network links 3, wherein the network link 3 connects the media network port 5 and the network port 2 of the device D. #1. #2, wherein the media node M1, M2, M3, M4 is adopted to run a media station support communication protocol and to provide media node information.

Abstract: In a method for running a computer network (2) comprising a number of devices (4a-d) being arranged in a daisy-chained loop and running a spanning-tree algorithm (10) involving handling of state machines (14), wherein each device (4a-d) comprises a bridge (6a-d) having at least three ports (8a-c), whereby during running the network (2) each device (4a-d) can take different states (D, L, F, O) to avoid a loop in the network (2), whereby logical port states (D, L, F, O) of the ports are defined by the state machines (14), for at least one device (4a-d) at least once before a reboot of the device (4a-d) a momentary state (S) of a state machine (14) is stored, and in case of rebooting the state (D, L, F, O, S) of the device (4a-d) is restored, if it is successfully validated that the stored state (S) is still valid. A Computer network (2), comprising a number of devices (4a-d) being arranged in a daisy-chained loop is adapted for performing the method above.

Abstract: Streaming of high bandwidth audio streams using the Internet Protocol on an Ethernet network is common practice. The invention concerns an audio stream network 1 with network components, wherein the network components comprise at least one source device 2 and a plurality of receiving devices 3, 3a, 3b, 3c, wherein the network components are connected with a network connection, wherein the network connection is using the internet protocol, wherein the source device 2 is adapted to provide an audio stream 4a, 4b, 4c, wherein the audio stream 4a, 4b, 4c comprises at least one channel, wherein the receiving devices 3, 3a, 3b,3c are adapted to receive one or more audio stream 4a, 4b, 4c from at least one of the source devices 3, 3a, 3b, 3c.

Abstract: Computer networks are widely used. Existing computer networks are often changed and/or extended in time.

Abstract: In a method for running a computer network (2) comprising a number of devices (4a-d) being arranged in a daisy-chained loop and running a spanning-tree algorithm (10) involving handling of state machines (14), wherein each device (4a-d) comprises a bridge (6a-d) having at least three ports (8a-c), whereby during running the network (2) each device (4a-d) can take different states (D, L, F, O) to avoid a loop in the network (2), whereby logical port states (D, L, F, O) of the ports are defined by the state machines (14), for at least one device (4a-d) at least once before a reboot of the device (4a-d) a momentary state (S) of a state machine (14) is stored, and in case of rebooting the state (D, L, F, O, S) of the device (4a-d) is restored, if it is successfully validated that the stored state (S) is still valid. A Computer network (2), comprising a number of devices (4a-d) being arranged in a daisy-chained loop is adapted for performing the method above.

Abstract: In a method for miming a computer network (2) comprising a number of devices (4a-d) comprising at least one network port (6a-c) and being interconnected by network links (8a-c) connecting two respective ports (6a-c), wherein each of the network ports (6a-c) is running the LLDP protocol (9) and comprises a remote MIB (10a-c), a change of a physical state (up, down) of a network link (8a-c) triggers an update of the information in the remote MIB (10a-c) of the ports (6a-c) associated with this link (8a-c), especially immediately after the change of the physical state (up, down). A computer network (2) comprising a number of devices (4a-d) comprising at least one network port (6a-c) and being interconnected by network links (8a-c) connecting two respective ports (6a-c), wherein each of the network ports (6a-c) is running the LLDP protocol (9) and comprises a remote MIB (10a-c) is adapted for performing the above method.

Abstract: Method and computer network for discovering services in a computer network using Domain Name System Service Discovery (DNS-SD), comprising as components at least a client and a server, the components can be linked by bridges and communicate by a network protocol, whereby the client and the server have a connection-oriented communication path between each other in the computer network, whereby in case of a connection loss one of the components being affected by the connection loss announces itself regularly using DNS-SD until the connection to the client is restored.

Abstract: The invention provides for a method for running a computer network and such a computer network. The computer network comprises a number of devices being arranged in a stable daisy-chained loop, wherein each device comprises a bridge having at least three ports, whereby during running the computer network each device can take different states to avoid a loop, and whereby in case of rebooting the ports of at least one of the devices keep their current port states.

Abstract: The invention provides for a method for using a computer network (10) comprising a number of switches (18, 20) each having ports for receiving and sending streams, wherein the streams are sent from a router (14) via the ports of switches (18, 20), that have shown interest, to at least one receiver (24, 26), whereby in case of a link failure at least one of the at least one receiver (24, 26) sends back a message to the router.

Abstract: The invention provides for a method of encoding data and a method for decoding encrypted and authenticity protected data. Furthermore, the invention provides for an encoding and a decoding equipment. For encoding the data is encrypted by using AES encryption (16, 52) and authenticity protected by calculating a CMAC algorithm (26) over the data.

Abstract: The invention provides for a method for using a computer network (10) comprising a number of switches (18, 20) each having ports for receiving and sending streams, wherein the streams are sent from a router (14) via the ports of switches (18, 20), that have shown interest, to at least one receiver (24, 26), whereby in case of a link failure at least one of the at least one receiver (24, 26) sends back a message to the router.