Network Scalability is a very important topic. If the Internet is going to continue to support this rapidly growing number of users, it must be easy to increase resource availability.
What is network scalability?
Scalability can be defined as a network's ability to react to a growing demand for resources and bandwidth requirements and adapt without losing quality. It can also be defined as the ability to handle continuous growth without undue challenges or to be prepared to become larger without the loss of quality in the services offered.