CCNA Wireless 640-722 Official Cert Guide

Mesh Network

To provide wireless coverage over a large area, it is not always practical to run Ethernet cabling to every AP that is needed. Instead, you could use multiple APs configured in mesh mode. In a mesh topology, traffic is bridged from AP to AP, in a daisy-chain fashion.

Mesh APs can leverage dual radios—one in the 2.4-GHz band and one in the 5-GHz band. Each mesh AP usually maintains a BSS on a 2.4-GHz channel, with which wireless clients can associate. Client traffic is then usually bridged from AP to AP over 5-GHz channels as a backhaul network. At the edge of the mesh network, the backhaul traffic is bridged to the wired LAN infrastructure. Figure 5-15 shows a typical mesh network. With Cisco APs, you can build a mesh network indoors ...