Availability of the network is essential for the customer. In order to provide great level of availability, it is recommended to use modular components. It allows to improve redundancy, serviceability, and reliability.

Duplicating network component is one of the ways to improve availability. Using modular components, that are physically and logically independent allows to ensure that single component failure would not disrupt the entire network. Reliability of the network is achieved with the simplicity of the network. Conventional data centers are design in a single physical package manner, which means that one component failure could compromise entire network. It makes scalability a challenge for the old systems.

Commonly used way of increasing availability is the use of redundant subsystem. Infrastructure can be simplified with the help converged networks. Critical parts of the network should have self recovery system for cases of link and switch failure.