Campus lan and Wireless lan solution Design Guide

Always on and resilient
—Continuously on and available. 
● 
Intelligent
—Adapting to changing needs, beyond the limits of basic standards, using insight into network 
activity. 
● 
Secure
—Protecting the organization and its users. 
Planning for the Future 
As you look at a network design, consider the networking trends and future needs of an organization. 
● 
The network must be ready to appropriately scale over time in order to meet the demands of the 
organization it is supporting. 
● 
Because demands on wireless access points (APs) with the latest standards, including Wi-Fi 6 (802.11ax) 
technology exceed 1 Gbps, and the IEEE has ratified the 802.3bz standard that defines 2.5 Gbps and 5 
Gbps Ethernet, you should deploy a network that is ready to support the demand without requiring an 
upgrade of the existing copper Ethernet wiring plant. You accommodate these latest demands by 
deploying network platforms including Cisco® Catalyst Multigigabit technology. 
● 
As you deploy new devices with higher power requirements, such as lighting, surveillance cameras, 
virtual desktop terminals, remote access switches, and APs, your design should have the ability to support 
power over Ethernet up to 90W per port, offered with Cisco Universal Power Over Ethernet Plus, and the 
access layer should also provide PoE perpetual power during switch upgrade and reboot events. The 
Cisco Catalyst 9000 Series access layer switches are perpetual PoE-capable and ready for 100W per 
port, as that technology becomes available. 
● 
Compliance issues drive a choice of platforms required when you support standards certifications and 
MACsec. For those cases, you should also be prepared to make analytic data available, using 
technologies such as NetFlow.
● 
The Internet of Things (IoT) impacts today's network design. Your network should support TrustSec and 
other segmentation and virtualization technologies, such as Cisco Software-Defined Access (SD-Access) 
in order to enable the scale and expanded uses and policies for the network driven by these trends. 
● 
Bandwidth needs are doubling potentially multiple times over the lifetime of a network so that the network 
deployed today needs to be prepared to aggregate using 10 Gbps Ethernet to 25 Gbps to 40 Gbps to 100 
Gbps capacities or more over time. 

---

© 2020 Cisco and/or its affiliates. All rights reserved. 
Page 4 of 76
● 
The network platforms deployed today should offer the best longevity into the future, versus selecting the 
equipment that only meets the limits of today's needs. 
● 
To reduce operational complexity, you can use a centralized controller with open APIs, allowing for very 
fast, lower-risk deployment of network devices and services through UI and existing orchestration 
systems—Cisco Digital Network Architecture Center (Cisco DNA Center) automates this network device 
configuration and management to achieve your organization's intent.