![]() ![]() So, if we divide this large network into the smaller network then maintaining each network would become easy. To manage such a large number of hosts is a very difficult job. Generally, we divide the network into smaller networks or subnets which is called subnetting. The main features of subnet are as follows − This technique makes the network routing an efficient one. It is a smaller network inside a large network. Subnet (sub network)Įvery website needs a unique IP address, in order to uniquely identify the website, we are dividing the IP network into two or more networks called subnet, which is preferred to control network traffic. ![]() Subnet mask has binary is in all bits specifying the network and subnet-work. In this way, we set the host bits to zero in the Subnet mask. Subnet mask uses the same format and representation technique as IP addresses. ![]() Suppose we have a subnet address as 192.168.1.0. In practice the way host A determines if B is in the same network is by applying its own subnet mask to both its own IP address and Bs IP address and check if the results are identical. In example 2 if host B has a subnet mask of 255.255.255.0 the communication will likely fail. It tells us about the IP of the host which has done subnetting. For this to works it requires that the subnet masks are coherent. The binary "0" in the subnet mask tell us about the host address. Within a given network, two host addresses are reserved for a special purpose, and cannot be assigned to hosts. Subnet Mask is made by setting the network bits to all "1"s and setting host bits to all "0"s. It divides the IP address into multiple parts which can be assigned to every computer. Subnet Mask is used in networking to create multiple sub networks in a network. ![]()
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