User's Manual

Wireless Topologies 15
Roaming Between Multiple APs
For larger environments, a Harmony 802.11a client devices may roam from one
Harmony 802.11a Access Point to another while maintaining the same network
connection. The 802.11a Access Points establish coverage areas or cells similar in
concept to those of a cellular phone network. The mobile clients will connect to any
802.11a Access Point that is within range.
Figure 3 Roaming
Each Harmony 802.11a Access Point within a roaming network must have a unique,
independent Channel, but all must have the same SSID and WEP Keys (if WEP is
enabled).
Mobile clients, equipped with Harmony 802.11a CardBus Cards or PCI Cards, are
configured to operate in Infrastructure mode and have the same SSID and WEP Keys
as the Access Points. Alternatively, the mobile client may use an SSID of “any” to
associate with any available Access Point, regardless of the AP’s SSID.