Руководство По Проектированию для Cisco Cisco Aironet 1522 Lightweight Outdoor Mesh Access Point

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Cisco Mesh Access Points, Design and Deployment Guide, 7.2
OL-21848-03
  Mesh Network Components
Universal Access
You can configure the backhaul on mesh access points 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 transmitted only over the 802.11a or 802.11a/n radio and client 
association is allowed only over the 802.11b/g or 802.11b/g/n radio. For more information about the 
configuration, see the 
.
Point-to-Multipoint Wireless Bridging
In the point-to-multipoint bridging scenario, a RAP acting as a root bridge connects multiple MAPs as 
nonroot bridges with their associated wired LANs. By default, this feature is disabled for all MAPs. If 
Ethernet bridging is used, you must enable it on the controller for the respective MAP and for the RAP.  
 shows a simple deployment with one RAP and two MAPs, but this configuration is 
fundamentally a wireless mesh with no WLAN clients. Client access can still be provided with Ethernet 
bridging enabled, although if bridging between buildings, MAP coverage from a high rooftop might not 
be suitable for client access.
Figure 35
Point-to-Multipoint Bridging Example
Point-to-Point Wireless Bridging
In a point-to-point bridging scenario, a 1500 Series Mesh AP can be used to extend a remote network by 
using the backhaul radio to bridge two segments of a switched network (see 
). This is 
fundamentally a wireless mesh network with one MAP and no WLAN clients. Just as in 
point-to-multipoint networks, client access can still be provided with Ethernet bridging enabled, 
although if bridging between buildings, MAP coverage from a high rooftop might not be suitable for 
client access.
If you intend to use an Ethernet bridged application, we recommend that you enable the bridging feature 
on the RAP and on all MAPs in that segment. You must verify that any attached switches to the Ethernet 
ports of your MAPs are not using VLAN Trunking Protocol (VTP). VTP can reconfigure the trunked 
VLANs across your mesh and possibly cause a loss in connection for your RAP to its primary WLC. An 
incorrect configuration can take down your mesh deployment.
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