Deployment Scenario 4 - L3 Edge Peers:
This deployment consists of multiple WLAN switches connected to a L3 core. APs are
either directly connected to the WLAN switch or over a L2 or L3 device. This
configuration does require L3 tunneling to accomplish seamless roaming. When
Tunneling is used, an extra 20 bytes are added in the headers for encapsulation. To
support these larger frames, you can increase the MTU size on all intermediate ports
and WLAN switch ports. However, if you use tunneling only for IP telephony, or if the
MTU size on all wireless clients can be set to 1480, you do not need to increase the
MTU size in the network.
Scenario 4
AP1
WS
Network IP: 10.90.90.90
Loopback: 192.168.10.254
L3 Tunnel: 192.168.250.254
CL1
FTP Server
Audio/Video Server
192.168.20.x
192.168.250.x
SSID:
L3-Tunnel: 192.168.250.x
AP2
L3 Device
Across L3 Network
172.17.5.0/24
Seamless Roaming
172.17.7.x
172.17.6.0/24
WS
Network IP: 172.17.7.254
Loopback: 192.168.15.254
L3 Tunnel: 192.168.250.253
Radius Server
10.90.90.100
