3. Characterizing Existing Network
3.1 Documenting the existing network
3.1.1 Creating a network diagram
Typically, the first step in installing a new network is to take a detailed look at the existing network. The Networking Company designer examines the existing network to:
• Determine if the design goals are realistic and feasible
• Determine if the existing network meets the expectations for scalability, availability, security, and manageability
• Identify where new equipment, infrastructure upgrades, and new services can be integrated
• Ensure that old and new network devices, media, and functions can work together