A Subnet is a logical subdivision of an IP network designed to organize devices and optimize traffic flow. By creating separate network segments, administrators can isolate departments, servers, or applications while using available IP addresses more efficiently. Subnets can also support stronger access controls and simplify troubleshooting when network problems occur. Proper subnet planning is especially valuable as infrastructure grows and becomes more complex. Discover the key benefits, terminology, and practical uses of a Subnet in the detailed article.