Cisco Systems OL-6217-01 manual Cisco SWAN Layers

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Figure 1 Cisco SWAN Layers

Cisco Structured Wireless-Aware Network (SWAN) Implementation Guide

Cisco SWAN Framework Overview

The Cisco SWAN framework introduces WLCCP to facilitate control messaging between the framework components. Figure 1 illustrates the conceptual model of the Cisco SWAN framework, including the WLCCP messaging protocol. As shown in Figure 1, each layer is implemented in specific Cisco products.

Figure 1 Cisco SWAN Layers

The management layer supplies the processing of RM data from the lower layers, controlling and managing the radio coverage environment. This data is also used for securing the radio coverage environment by detecting rogue access points and wireless clients. Authentication, Authorization, and Accounting (AAA) services are also placed in the management layer.

The required management layer component is the CiscoWorks WLSE. An optional component is the CiscoSecure ACS. Other products with functionality equivalent to ACS may be used in Cisco SWAN.

The WDS layer provides critical services: WLAN client context awareness, fast secure roaming, and aggregation of radio management data from the infrastructure access point and client layer. WDS is implemented in supporting versions of Cisco IOS for the Cisco Aironet 1100 and 1200 series access points and on the special Cisco IOS running on the wireless LAN service module for the Catalyst 6500 switch platform. The solution architecture dictates whether to use the WDS access point or the WLSM implementation.

The infrastructure access point layer facilitates WLAN client access to the wired-network, radio downlink encryption, and radio management data collection, including on-going radio monitoring.

The client layer includes all wireless clients. Advanced SWAN framework features take advantage of client-side capabilities to allow for radio measurement collection from the WLAN clients and fast secure roaming.

Cisco Structured Wireless-Aware Network (SWAN) Implementation Guide

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Cisco Systems OL-6217-01 manual Cisco SWAN Layers