Traffic Patterns in a CUWN
Recall that autonomous APs bridge traffic between a wireless BSS and a wired VLAN. To get to and from the wired network, the AP relies on its connection to the distribution system (DS). LAPs work in a similar fashion, except that the BSS and DS are separated by some expanse of the network infrastructure; that expanse is connected by the CAPWAP tunnel.
Consider the network shown in Figure 9-9. Two wireless clients are associated with the WLAN that is formed by the LAP and WLC combination. Traffic from Client B to a host somewhere on the wired network travels through the LAP, through the CAPWAP data tunnel to the WLC, and then out onto the switched campus network.
Figure 9-9 CUWN Traffic Patterns Between Wireless and ...
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