Network Redundancy Design

If there is a single point of failure and it fails...

Network redundancy is a simple concept to understand.

If there is a single point of failure and it fails, then… the world is on fire!

If there is a secondary point, then when the main point fails, there is still another means to stay alive. 

Network redundancy therefore is a process of additional or alternate instances of network devices, equipment and communication mediums being installed within the network infrastructure.  

It is a method for ensuring network availability in case of a network device or path failure and unavailability. It provides a means of network failover.