VLSM and Supernetting: Advanced Subnetting Techniques
TL;DR — Key Takeaways VLSM (Variable Length Subnet Mask) divides a network into subnets of different sizes. Each subnet matches its real host count. Fixed-length subnetting (FLSM) wastes addresses by forcing every subnet to the same size. Supernetting (route aggregation) is the reverse. It combines contiguous networks into one larger block to shrink routing tables. … Read more