Advantages and Disadvantages of Subnetting

 

Advantages and Disadvantages of Subnetting

What is Subnetting?

Subnetting is a method of keeping apart a unmarried physical community into numerous logical subnetworks (subnets).

A community section and a host segment make up an IP deal with subnets shaped via extracting bits from an IP cope with's host aspect and establishing several smaller sub-networks inside a greater full-size network.

Subnetting permits a business to increase its community with out securing a brand new community range from its Internet Service Provider (ISP). Subnetting reduces network traffic at the same time as also hiding community complexity.

Subnetting is needed whilst a single network number have to be disbursed across more than one components of a neighborhood area community.

Subnets had been created to alleviate the shortage of IP discourses on the Internet.

A subnet disguise is part of every IP cope with. The subnet mask referred to as the default subnet masks is protected in all elegance sorts. The subnet mask specifies the type and amount of IP addresses required for a particular local community. The default doorway is the firewall or router.

The succeeding is the default subnet mask −

255.Zero.Zero.Zero is the class A cope with.

255.255.Zero.Zero is the magnificence B address.

255.255.255.Zero is the magnificence C address.

A community administrator can subnet a single Class A, Class B, or Class C community range into smaller portions through subnetting. Subnets can be subnetted once more to create sub-subnets.

Advantages of Subnetting

Some of the benefits of partitioning a community into subnets are as follows −

It reduces community visitors through decreasing the wide variety of broadcasts despatched out.

It helps overcome limitations in a local vicinity community (LAN), inclusive of the maximum quantity of allowed hosts.

It permits humans to connect to a piece community from their houses while not having to open the entire network.

It protects one network from the intrusion of every other. For example, the Developer department's code ought to not be reachable through some other department in an agency.

Some subnets can also require better network precedence than others. A sales branch, as an instance, may also want to host webcasts or video conferences.

Maintenance is easy within the case of small networks.

Disadvantages of Subnetting

Subnetting has positive drawbacks similarly to its blessings −

To reach a Process in a unmarried network, there are handiest three steps −

Source Host to Destination Network,

Destination Network to Destination Host, and then

Destination Host to Process.

Subnetting, then again, necessitates 4 phases for Inter Network Communication. The steps are −

Source Host to Destination Network,

Destination Network to appropriate Subnet,

Subnet to Host, and in the end, @ Read More beingsoftware 

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