What are some reasons to incorporate subnetting into an organization's network?

Question

What will be an ideal response?

Answer 1

An organization may decide to subnet for various reasons:
• To match the physical layout of the organization-A group may want to configure the network to mirror the organizational structure. For example, if the company occupies a six-storey building with 30 hosts per floor, the network administrator may create six different subnets, one for each floor.
• To match the administrative structure of the organization-Some organizations may choose to divide their network by administrative structure. For example, the administrator might subdivide the network by department. Each department could have its own subnetwork.
• To plan for future growth-A network administrator who foresees and plans for organizational growth may decide to subnet the network based on that expectation.
• To reduce network traffic-This is one of the most common reasons to divide an IP network into smaller subnetworks. Because routers are required for each network division, the number of routers on the network must increase when subnetting occurs. Typically, routers do not forward broadcast traffic, which means that there will be less broadcast traffic on the network. Routers, as their name implies, also route packets along a path instead of broadcasting them to all hosts on a segment. Overall, this equates to a more efficient use of the network and a corresponding reduction in network traffic.