Advantages and Disadvantages of Subnetting

 

Advantages and Disadvantages of Subnetting

What is Subnetting?

Subnetting is a technique of setting apart a single bodily community into numerous logical subnetworks (subnets).

A community phase and a bunch segment make up an IP deal with subnets shaped by using extracting bits from an IP deal with's host thing and organising numerous smaller sub-networks within a more sizeable network.

Subnetting allows a business to enlarge its community without securing a new network wide variety from its Internet Service Provider (ISP). Subnetting reduces network visitors whilst also hiding community complexity.

Subnetting is required while a single community number must be disbursed throughout a couple of elements of a local region community.

Subnets had been created to alleviate the scarcity of IP addresses on the Internet.

A subnet mask is part of each IP address. The subnet mask referred to as the default subnet mask is blanketed in all elegance types. The subnet mask specifies the type and amount of IP addresses required for a selected neighborhood network. The default doorway is the firewall or router.

The following is the default subnet mask −

255.Zero.0.0 is the elegance A deal with.

255.255.Zero.Zero is the magnificence B cope with.

255.255.255.Zero is the magnificence C deal with.

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

Advantages of Subnetting

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

It reduces community site visitors with the aid of lowering the variety of publicizes sent out.

It allows conquer obstacles in a neighborhood place network (LAN), which include the most wide variety of allowed hosts.

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It lets in people to connect to a work network from their homes while not having to open the whole network.

It protects one community from the intrusion of another. For instance, the Developer department's code must no longer be accessible by means of some other department in an business enterprise.

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

Maintenance is simple inside the case of small networks.

Disadvantages of Subnetting

Subnetting has sure drawbacks in addition to its benefits −

To attain a Process in a single network, there are only 3 steps −

Source Host to Destination Network,

Destination Network to Destination Host, after which

Destination Host to Process.

Subnetting, on the other hand, necessitates 4 phases for Inter Network Communication. The steps are −

Source Host to Destination Network,

Destination Network to suitable Subnet,

Subnet to Host, and ultimately, @ Read More smarthealthweb 

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