Cisco Cisco Aironet 1522 Lightweight Outdoor Mesh Access Point 디자인 가이드

The three RAPs are connected to the wired network at each location and are located on the building roof. 
All the downstream access points operate as MAPs and communicate using wireless links (not shown).

Both MAPs and RAPs can provide WLAN client access; however, the location of RAPs are often not 
suitable for providing client access. Each of the three access points in 

 are located on the 

building roofs and are functioning as RAPs. These RAPs are connected to the network at each location. 

Some of the buildings have onsite controllers to terminate CAPWAP sessions from the mesh access 
points but it is not a mandatory requirement as CAPWAP sessions can be back hauled to a controller over 
a wide-area network (WAN). (See 

For more details on CAPWAP, refer to the 

In a Cisco wireless backhaul network, traffic can be bridged between MAPs and RAPs. This traffic can 
be from wired devices being bridged by the wireless mesh, or CAPWAP traffic from the mesh access 
points. This traffic is always AES encrypted when it crosses a wireless mesh link such as a wireless 
backhaul (

). 

AES encryption is established as part of the mesh access point neighbor relationship with other mesh 
access points. The encryption keys used between mesh access points are derived during the EAP 
authentication process.

You can configure the backhaul (1522, 1240 and 1130) to accept client traffic over its 802.11a radio. 
This feature is identified as Backhaul Client Access in the controller GUI (Monitor > Wireless). When 
this feature is disabled, backhaul traffic is only transmitted over the 802.11a radio and client association 
is only allowed over the 802.11b/g radio. Refer to the 

 for configuration details.

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