Menu

Tech

English

Sizing Each Team

Lesson 43 of 46 in Coddy's IP Addressing and Subnetting course.

Step two: right-size every team, exactly as in the planning chapter. Find the smallest prefix whose usable-host count (2^h - 2) covers the requirement.

Work from the largest team down, because that is also the order you will allocate in: Engineering with 110 machines, Sales with 45, Support with 20, Printers with 8.

Do not round up generously "to be safe". Right-sizing is the whole point of VLSM; growth is handled by leaving the remainder of the block free, not by padding every subnet.

Challenge

Easy

Print the smallest prefix (with slash) for each team, one per line, largest team first: Engineering (110), Sales (45), Support (20), Printers (8).

Expected output:

/25
/26
/27
/28

Try it yourself

Terminal

All lessons in IP Addressing and Subnetting

1Bits and Binary

Numbers as Bits Binary to Decimal Powers of Two Recap - Binary Warm-up

4CIDR Notation

Goodbye Classes Reading CIDR Block Sizes Recap - CIDR Reading

7Special Addresses

Private Ranges Loopback Link-Local Zero and Broadcast

10Capstone - The Office

The Floor PlanSizing Each TeamCarving the Block The Router's View Recap - Ship the Plan

2IPv4 Anatomy

Four Octets The 32-Bit View Network and Host Valid or Not Recap - Read an Address

5Inside a Subnet

Network Address Broadcast Address Usable Hosts First and Last Host Recap - Subnet Facts

8Planning Networks

Right-Sizing VLSM Step by Step Allocation Order Checking for Overlap Recap - Plan a Network

3The Subnet Mask

What a Mask Does Mask to Prefix Prefix to Mask ANDing It Out Recap - Mask Basics

6Subnetting Drills

The Block Size Trick Which Subnet Am I In Splitting a /24 Splitting Again Recap - Subnetting Drills

9IPv6 First Steps

Why IPv6 Reading IPv6 Prefixes in IPv6 Recap - IPv6 Basics

Practice on your own: Terminal playground