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online ccna dumps.Step 5 Once this AP joins the WLC, LWVP messages are exchanged and the AP begins downloading firmware from the WLC (if this AP does not match the version of the WLC). If the AP's firmware is different from the WLC's, the AP downloads the firmware to stay in sync with the WLC. This firmware download mechanism utilizes LWAPP.Step 6 After the WLC and AP match firmware versions, the WLC sets the AP accordingly. These settings may include service set identifiers (SSIDs). Security parameters, 802.11 parameters such as data rate and supported PHY types, wireless channels, and power levels.After the setup phase is complete, the AP and WLC enter the LWAPP operational state and begin serving data traffic. Step 8 During the run operation, the WLC may issue various commands to the AP via LWAPP control messages. These commands may be requests for statistical information collected and maintained by the AP.Step 9 During operational operation, LWAPP keepalive messages are exchanged between the AP and the WLC to maintain the LWAPP communication channel. When the AP misses a sufficient number of keepalive messages to be exchanged, that AP attempts to discover a new WLC.1. the LWAPP Layer 2 transport mode When operating in Layer 2 mode, the LWAPP has the following characteristics and requirements.146 Chapter 11 Discovering and Associating ControllersLWAPP communication between the AP and the WLC is located locally in Layer 2 Ethernet frames. This is known as the Layer 2LWAPP mode. 11.2 Basic Topics 147In Layer 2 LWAPP mode, although the AP can obtain an IP address through DHCP, all LWAPP communication between the AP and the WLC is in encapsulated Ethernet frames, not in IP packets.The AP and WLC must be located in the same Ethernet. This means that Layer 2 mode is not well scalable. The source MAC address and destination MAC address are dependent on the direction of the frame.