Divide supernets into site-blocks and plan internal subnets while preventing collisions.
| Site Name | Prefix (/) | |
|---|---|---|
Current Block:
Allocate address space within this site block using Variable Length Subnet Masking.
| Subnet Name | Required Hosts | |
|---|---|---|
Interactively split this site block into subnets. Perfect for visual hierarchical allocation.
Hierarchical network planning involves dividing a large address block (supernet) into smaller blocks for different sites or regions. This approach improves routing efficiency through summarization and prevents address collisions across the enterprise.
Divide a parent supernet into site blocks, then allocate internal subnets while retaining summarizable boundaries.
Splitting 10.0.0.0/8 into four equal sites produces four aligned /10 blocks.
Mixing unaligned site sizes can prevent route summarization even when the address space technically fits.