If multiple networks use different protocols, they require expensive hardware to translate messages between them, and throughput suffers. Communication is possible, but you can easily side-step problems by using networks with a common protocol. Once communication requirements between networks is understood, system integrators can select the necessary hardware to implement a solution. To link multiple systems that use a common protocol, each network needs a router, which sends messages from one network to another. However, to integrate networks with different protocols, a gateway must translate them.
Gateways are expensive and they limit data flow.
They also involve time-consuming configuration and programming by the user. No translation is required, eliminating the need for a gateway. For optimal power in an integrated enterprise, choose solutions that simplify communication and will be here tomorrow. Technology changes so rapidly that inflexible solutions won't have a long life cycle.