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Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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Intra-Central AP Roaming

Intra-Central AP Roaming

When two subnets have the same VLAN ID, STAs roam within a central AP at Layer 2. When two subnets have different VLAN IDs, STAs roam within a central AP at Layer 3. Packet forwarding for Layer 2/3 intra-central AP roaming STAs is the same as that for new online STAs. Packets are forwarded locally by the central AP.

NOTE:

For AD9431DN-24X, intra-central AP Layer 3 roaming can be implemented only when downlink ports on the AP permit packets with service VLAN tags to pass through.

Figure 19-3  Intra-central AP roaming
Before roaming After roaming
  1. The STA sends a service packet to the HAP.
  2. After receiving the service packet, the HAP sends it to the central AP.
  3. The central AP forwards the service packet to the upper-layer network.
  1. The STA sends a service packet to the FAP.
  2. After receiving the service packet, the FAP sends it to the central AP.
  3. The central AP forwards the service packet to the upper-layer network.
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Updated: 2019-01-11

Document ID: EDOC1000176006

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