TP-Link OC200 Omada Controller Software 4.1.5Windows/Linux User Guide - Page 54

Chapter 4 Beacon Control Configure the Network with Omada SDN Controller Beacons are transmitted periodically by the EAP to announce the presence of a wireless network for the clients. Click , select the band, and configure the following parameters of Beacon Control. Beacon Interval: Specify how often the APs send a beacon to clients. By default, it is 100. DTIM Period: Specify how often the clients check for buffered data that are still on the EAP awaiting pickup. By default, the clients check for them at every beacon. DTIM (Delivery Traffic Indication Message) is contained in some Beacon frames indicating whether the EAP has buffered data for client devices. An excessive DTIM interval may reduce the performance of multicast applications, so we recommend that you keep the default interval, 1. RTS Threshold: RTS (Request to Send) can ensure efficient data transmission by avoiding the conflict of packets. If a client wants to send a packet larger than the threshold, the RTS mechanism will be activated to delay packets of other clients in the same wireless network. We recommend that you keep the default threshold, which is 2347. If you specify a low threshold value, the RTS mechanism may be activated more frequently to recover the network from possible interference or collisions. However, it also consumes more bandwidth and reduces the throughput of the packet. Fragmentation Threshold: Fragmentation can limit the size of packets transmitted over the network. If a packet to be sent exceeds the Fragmentation threshold, the Fragmentation function will be activated, and the packet will be fragmented into several packets. By default, the threshold is 2346. Fragmentation helps improve network performance if properly configured. However, too low fragmentation threshold may result in poor wireless performance because of the increased message traffic and the extra work of dividing up and reassembling frames. Airtime Fairness: With this option enabled, each client connecting to the EAP can get the same amount of time to transmit data so that low-data-rate clients do not occupy too much network bandwidth and network performance improves as a whole. We recommend you enable this function under multi-rate wireless networks. 4. 2. 4 Device Account You can specify a device account for all adopted devices on the site in batches. Once the devices are adopted by the controller, their username and password become the same as settings in Device Account to protect the communication between the controller and devices. By default, the username is admin and the password is generated randomly. Go to Settings > Site and modify the username and password in Device Account. Click Save and the new username and password are applied to all devices on the site. 52