Cisco Cisco Aironet 350 Mini-PCI Wireless LAN Client Adapter Guia Do Desenho
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Enterprise Mobility 4.1 Design Guide
OL-14435-01
Chapter 8 Cisco Wireless Mesh Networking
Wireless Mesh Operation
A few operating scenarios are provided below to better understand the operation of background
scanning. In
scanning. In
, when the mesh access point, MAP1, initially comes up it is aware of both root
access points, RAP1 and RAP2, as possible parents. RAP2 is chosen as the parent for MAP1 because the
route through RAP2 provides a better cost metric.
route through RAP2 provides a better cost metric.
Once the link is established, background scanning continuously monitors all channels in search of a
better path and parent. RAP2 continues to act as parent for MAP1 and communicates on channel 2 until
either the link goes down or a better path is located on another channel.
better path and parent. RAP2 continues to act as parent for MAP1 and communicates on channel 2 until
either the link goes down or a better path is located on another channel.
Figure 8-12
Mesh Access Point, MAP1, Selects Parent
, the link between MAP1 and RAP2 is lost. Data from ongoing background scanning
identifies RAP1 and channel 1 as the next best parent and communication path for MAP1, so that link is
established immediately without the need for additional scanning after the link to RAP2 goes down.
established immediately without the need for additional scanning after the link to RAP2 goes down.
Figure 8-13
Background Scanning Identifies New Parent
Enter this command to enable or disable background scanning on the controller:
config mesh background-scanning {enable | disable}
Enter this command to verify background scanning is enabled:
RAP1
RAP2
MAP1
Channel 1 = 153
Channel 2 = 161
230615
RAP1
RAP2
MAP1
Channel 1 = 153
Channel 2 = 161
230614