AP online process

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AP online process:
1. The AP obtains a static IP address or obtains a dynamic IP address using DHCP.
2. The AP sets up a CAPWAP tunnel with the AC.
3. The AC controls AP access.
a. The AP sends a Join Request packet carrying the SN and version of the AP model.
b. The AC determines whether the MAC address or SN is in the blacklist.
c. The AC determines the AP authentication mode.
MAC address authentication: checks whether the AP is added offline. If not, check whether it is in the whitelist. If not, add the AP to the unauthenticated-AP list manually.
SN authentication: involves the same process as MAC address authentication.
Non-authentication: performs no action.
d. The AP goes online. Other APs that fail to meet the requirements cannot go online.
e. The AC sends a Join Response packet carrying the AC version.
4. AP version check (automatic upgrade if the AP version is different from the AC version.)
-Automatic upgrade (AC/FTP/SFTP mode) must be configured on the AC.
5. After obtaining the configuration from the AC, the AP starts service forwarding.

Other related questions:
How does an AP go online
An AP goes online in the following modes: 1. Adding an AP offline and configuring AP attributes: AP attributes including the AP type and MAC address added to the whitelist are configured on the AC before the AP goes online. When the AP connects to an AC, the AC checks whether the AP can go online based on AP attributes. If the AP can go online, the AP can work based on the preconfigured attributes. 2. Discovering APs in the whitelist: The AP whitelist and AP authentication mode are configured on the AC. When an AP in the whitelist connects to the AC, the AC discovers the AP, and the AP works properly. The AP using the authentication mode configured on the AC exists in the whitelist and can go online. 3. Configuring AP discovery and confirming the AP identity: When an AP connects to an AC, the AC discovers the AP and prevents the AP from going online because the AP is not in the whitelist. The AP can go online only after its identity is confirmed by the user.

Processing OSC bytes when the SCC board is online
In the receive direction, the OSC board receives overhead bytes (OSC bytes) and sends them to the SCC board for parsing. In the transmit direction, the SCC board collects local management information and sends the information to the OSC board in the OSC overhead format.

Online upgrade mode of the AP supported by the AC
FTP online upgrade mode is supported.

How to configure APs to go online statically or dynamically
Generally, if APs and the AC are on the same Layer 2 network, after the APs obtain IP addresses from the DHCP server, the APs can discover the AC by using broadcast and then connect to it. For configurations of APs to go online dynamically, see Example for Configuring APs to Dynamically Go Online in WLAN Typical Configuration Examples. If APs and the AC are not in the same network segment or users expect APs to go online dynamically on a specified AC, configure the IP address of the AC through the Option 43 field of the DHCP server. After obtaining the IP address through DHCP packets, the APs can go online on this AC according to the IP address carried by the Option 43 field. For the configurations, see Example for Configuring WLAN Services in Layer 3 Bypass Networking (Direct Forwarding) or Example for Configuring WLAN Services in Layer 3 Bypass Networking (Tunnel Forwarding) in WLAN Typical Configuration Examples. Users can also configure the IP address of the AC on the APs so that the APs can go online using the static IP address. For the configurations, see Example for Enabling an AP to Go Online Using a Static IP Address in WLAN Typical Configuration Examples.

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