A communication network for a host system, comprising: - a network of distributed nodes (node 202a, 204a, 206a, and 208a) connectable to a communication bus ; - a set of gates (202b, 204b, 206b, and 208b), wherein each gate is connected between at least one respective node and the communication bus, wherein each gate is operational in at least two operation modes, a first operational mode in which the gate is configured to allow the at least one respective node to communicate on the communication bus, and a second operational mode in which the gate is configured to isolate the at least one respective node from the communication bus, - a master control unit connected to each of the gates and configured to: - receive a state signal indicative of a present host system operational state, wherein the state signal is a reference for the master control unit to determine whether or not it is reasonable for a node to communicate on the communication bus, - receive request signals from the gates indicative of a request from the respective nodes to transmit a signal to the communication bus, and - based on comparing the request signal with the state signal, control the respective gate to transition from one of the first operational mode and the second operational mode to the other one of the first operational mode and the second operational mode. - a network of distributed nodes (node 202a, 204a, 206a, and 208a) connectable to a communication bus ; - a set of gates (202b, 204b, 206b, and 208b), wherein each gate is connected between at least one respective node and the communication bus, wherein each gate is operational in at least two operation modes, a first operational mode in which the gate is configured to allow the at least one respective node to communicate on the communication bus, and a second operational mode in which the gate is configured to isolate the at least one respective node from the communication bus, - a master control unit connected to each of the gates and configured to: - receive a state signal indicative of a present host system operational state, wherein the state signal is a reference for the master control unit to determine whether or not it is reasonable for a node to communicate on the communication bus, - receive request signals from the gates indicative of a request from the respective nodes to transmit a signal to the communication bus, and - based on comparing the request signal with the state signal, control the respective gate to transition from one of the first operational mode and the second operational mode to the other one of the first operational mode and the second operational mode. - receive a state signal indicative of a present host system operational state, wherein the state signal is a reference for the master control unit to determine whether or not it is reasonable for a node to communicate on the communication bus, - receive request signals from the gates indicative of a request from the respective nodes to transmit a signal to the communication bus, and - based on comparing the request signal with the state signal, control the respective gate to transition from one of the first operational mode and the second operational mode to the other one of the first operational mode and the second operational mode. <EOS>