D-Link DWC-2000 User Manual - Page 62

Section 4 - Advanced WLAN Configuration Field Description WLAN Global Setup IP Address Displays the current IP address of the wireless controller. Peer Group ID In order to support larger networks, you can configure wireless controllers as peers, with up to eight controllers in a cluster (peer group). Peer controllers share some information about APs and allow L3 roaming among them. Peers are grouped according to the group ID. Client Roam Timeout This value determines how long to keep an entry in the Associated Client Status list after a client has disassociated. Each entry in the status list shows an age, and when the age reaches the value you configure in the timeout field, the entry is deleted. Ad Hoc Client Status Timeout This value determines how long to keep an entry in the Ad Hoc Client Status list. Each entry in the status list shows an age, and when the age reaches the value you configure in the timeout field, the entry is deleted. AP Failure Status Timeout This value determines how long to keep an entry in the Ad Failure Client Status list. Each entry in the status list shows an age, and when the age reaches the value you configure in the timeout field, the entry is deleted. Client MAC Authentication Select either White-list or Black-list. RF Scan Status Timeout This value determines how long to keep an entry in the RF Scan Status list. Each entry in the status list shows an age, and when the age reaches the value you configure in the timeout field, the entry is deleted. This value determines how long to keep an entry in the Detected Client Status list. Detected Clients Status Timeout Each entry in the status list shows an age, and when the age reaches the value you configure in the timeout field, the entry is deleted. Tunnel IP MTU Size Select the maximum size of an IP packet handled by the network. The MTU is enforced only on tunneled VAPs. When IP packets are tunneled between the APs and the wireless controller, the packet size is increased by 20 bytes during transit. This means that clients configured for 1500 byte IP MTU size may exceed the maximum MTU size of existing network infrastructure which is set up to switch and route 1518 (1522‐tagged) byte frames. If you increase the tunnel IP MTU size, you must also increase the physical MTU of the ports on which the traffic flows. Note: if any of the following conditions are true, you do not need to increase the tunnel IP MTU size: • The wireless network does not use L3 tunneling. • The tunneling mode is used only for voice traffic, which typically has small packets. • The tunneling mode is used only for TCP based protocols, such as HTTP. This is because the AP automatically reduces the maximum segment size for all TCP connections to fit within the tunnel. Cluster Priority Specify the priority of this controller for the Cluster Controller election. The wireless controller with highest priority in a cluster becomes the Cluster Controller. If the priority is the same for all wireless controllers, then the wireless controller with lowest IP address becomes the Cluster Controller. A priority of 0 means that the wireless controller cannot become the Cluster Controller. The highest possible priority is 255. AP Client QoS Enable or disable the client QoS feature. If AP Client QoS is disabled, the Client QoS configuration remains in place, but any ACLs or DiffServ policies applied to wireless traffic are not enforced. The Client QoS feature extends the primary QoS capabilities of the wireless controller to the wireless domain. More specifically, access control lists (ACLs) and differentiated service (DiffServ) policies are applied to wireless clients associated to the AP D-Link DWC-2000 User Manual 62