A logical network diagram provides a visual illustration of the flow of information through a network and how devices communicate with each other. Usually, seven elements will be included in a logical network diagram, namely subnets, network objects, specific routing protocols, routing domains, voice gateways, traffic flow ,and network segments. Making a logical network diagram may assist users to manage the network in an effective way. More templates can be found in EdrawMax. Sign up for it and try to design your logical diagram.