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5/26/05 Multiple-Cisco Wireless LAN Controller Deployments
OL-7426-03
Multiple-Cisco Wireless LAN Controller DeploymentsMultiple-Cisco Wireless LAN Controller Deployments
Each Cisco Wireless LAN Controller can support Cisco 1000 Series lightweight access points across
multiple floors and buildings simultaneously. However, full functionality of the Cisco WLAN Solution is
realized when it includes multiple Cisco Wireless LAN Controllers. That is, a multiple-Cisco Wireless LAN
Controller system has the following additional features over a single-Cisco Wireless LAN Controller
deployment:
• Autodetecting and autoconfiguring Cisco Wireless LAN Controller RF parameters as the Cisco
Wireless LAN Controllers are added to the network, as described in Radio Resource
Management (RRM).
• Same-Cisco Wireless LAN Controller (Layer 2) Roaming and Inter-Subnet (Layer 3) Roaming.
• Automatic Cisco 1000 Series lightweight access point failover to any redundant Cisco Wireless
LAN Controller with unused ports (refer to Cisco Wireless LAN Controller Failover Protection
).
The following figure shows a typical multiple-Cisco Wireless LAN Controller deployment. The figure also
shows an optional dedicated Management Network, and the three physical connection types between
the network and the Cisco Wireless LAN Controllers, as further described in Network Connections to
Cisco Wireless LAN Controllers.
Figure - Typical Multiple-Cisco Wireless LAN Controller Deployment
Note: Cisco Wireless LAN Controller can connect through the Management Interface
to multiple subnets in the Network. This can be helpful, for instance, when Cisco
WLAN Solution operators want to confine multiple VLANs to separate subnets using
Operator-Defined Interfaces
.