Computer network comprising a number of devices (D.#1.#2) and at least four media nodes (M1, M2, M3, M4), wherein each of the devices (D.#1.#2) comprises at least one network port, wherein the devices (D.#1.#2) are interconnected with the network by network links, each link connecting two respective network ports, wherein the network ports are adopted to run a physical network discovery protocol, wherein the media node (M1, M2, M3, M4) comprises at least one media network port, wherein the media node (M1, M2, M3, M4) is interconnected with at least one of the devices (D.#1.#2) by the network links, wherein the network link connects the media network port and the network port of the device (D.#1.#2), wherein the media nodes (M1, M2, M3, M4) are adopted to run a media station support communication protocol and to provide media node information, wherein the media station support communication protocol is operable for a physical network discovery, wherein the media nodes (M1, M2, M3, M4) are adopted to run a service discovery protocol, wherein the service discovery protocol is adopted that the media node (M1, M2, M3, M4) can announce its presence on the network, wherein the number of devices comprise a first device (D.1.1), wherein the first device (D.1.1) is operable to start and/or to do network discovery, wherein the network discovery starts and/or begins at the first device (D.1.1), wherein the first device (D.1.1) is operable to find and/or connect the media node (M1, M2, M3, M4), wherein the first device (D.1.1) is operable to receive media node information from the media node (M1, M2, M3, M4), wherein the first device (D.1.1) is operable to use the media node information to discover the topology of the computer network, characterized in that the number of devices (D.#1.#2) comprise a faulty device, wherein the faulty device is not running the physical network discovery protocol, wherein the first device (D.1.1) is operable to use the media node information to discover the topology of the computer network and/or to bypass the faulty device. wherein each of the devices (D.#1.#2) comprises at least one network port, wherein the devices (D.#1.#2) are interconnected with the network by network links, each link connecting two respective network ports, wherein the network ports are adopted to run a physical network discovery protocol, wherein the media node (M1, M2, M3, M4) comprises at least one media network port, wherein the media node (M1, M2, M3, M4) is interconnected with at least one of the devices (D.#1.#2) by the network links, wherein the network link connects the media network port and the network port of the device (D.#1.#2), wherein the media nodes (M1, M2, M3, M4) are adopted to run a media station support communication protocol and to provide media node information, wherein the media station support communication protocol is operable for a physical network discovery, wherein the media nodes (M1, M2, M3, M4) are adopted to run a service discovery protocol, wherein the service discovery protocol is adopted that the media node (M1, M2, M3, M4) can announce its presence on the network, wherein the number of devices comprise a first device (D.1.1), wherein the first device (D.1.1) is operable to start and/or to do network discovery, wherein the network discovery starts and/or begins at the first device (D.1.1), wherein the first device (D.1.1) is operable to find and/or connect the media node (M1, M2, M3, M4), wherein the first device (D.1.1) is operable to receive media node information from the media node (M1, M2, M3, M4), wherein the first device (D.1.1) is operable to use the media node information to discover the topology of the computer network, characterized in that the number of devices (D.#1.#2) comprise a faulty device, wherein the faulty device is not running the physical network discovery protocol, wherein the first device (D.1.1) is operable to use the media node information to discover the topology of the computer network and/or to bypass the faulty device.