![]() ![]() In the subnet mask, each bit determines how the corresponding bit in the IP address should be interpreted (network, subnet, or host). If traffic were evenly distributed to each end station, the use of subnetting would reduce the overall traffic seen by each end station by 75 percent.Ī subnet mask is a 32-bit value written as four octets. ![]() ![]() Subnetting provides additional structure to an addressing scheme without altering the addresses. (All systems on the network receive all the broadcasts on the network.) Network addressing can be made more efficient by breaking the addresses into smaller segments, or subnets. These flat topologies result in short routing tables but, as the network grows, the use of bandwidth becomes inefficient. Without subnets, the organization operates as a single network. So even though it may be a difficult concept and confusing at first, keep at it as no one said getting your Cisco certification would be easy! As you progress through your CCNA exam studies, I am sure with repetition you will find this topic becomes easier. So to assist you, below we will discuss one of the more difficult CCNA concepts Implementing Subnet Planning. In preparation of your CCNA exam, we want to make sure we cover the various concepts that we could see on your Cisco CCNA exam. ![]()
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