Extended Universal Access - Cisco Aironet 1572EC Deployment Manual

High gain directional antenna should be used in typical serial-backhaul deployments. In addition "Preferred Parent" configurations
should be used to create serial-backhaul mesh networks.
The child AP selects the preferred parent based on the following conditions:
• Preferred parent is the best parent.
• Preferred parent has a link SNR of at least 20 dB.
• Preferred parent has a link SNR in the range 12 dB and 20 dB, but no other parent is significantly better (SNR more than 20%
is better). For SNR lower than 12 dB, the configuration is ignored.
• Preferred parent is not blacklisted.
• Preferred parent is not in silent mode because of dynamic frequency selection (DFS).
• Preferred parent is in the same bridge group name (BGN). If the configured preferred parent is not in the same BGN, and no
other parent is available, the child will join the parent AP using the default BGN.

Extended Universal Access

The 1572 Daisy-chaining feature can be used to extend Universal Access across a Mesh network. In this example, the Master MAP
is backhauled wirelessly with the RAP. The Slave AP operates in Local/Flex-connect mode and provides client access on both the
2.4 GHz and 5 GHz radio.
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