The “WLAN Connections” QoE metric indicates the number of connections that succeeded in passing all the Authorization, Association, DHCP, and Portal phases when a client connects to an Access Point.
There is no threshold value applied to this QoE metric, as it is just a counter that increases over time.
The “WLAN Connections” metric tracks failures in the following four phases:
-
Association - Once authentication is complete, clients can associate with an Access Point for full network access. Association allows the Access Point to register each client so that frames are delivered correctly.
-
Authorization - The phase during which the system uses the access control rules to decide whether access requests from (authenticated) consumers shall be approved (granted) or disapproved (rejected).
-
DHCP - The phase where clients obtain a DHCP lease for an IP address, a subnet mask, and various DHCP options from DHCP servers in a four-step process:
-
DHCP DISCOVER: The client broadcasts a request for a DHCP server.
-
DHCP OFFER: DHCP servers on the network offer an address to the client.
-
DHCP REQUEST: The client broadcasts a request to lease an address from one of the offering DHCP servers.
-
DHCP ACK: The DHCP server that the client responds to acknowledges the client, assigns it any configured DHCP options, and updates its DHCP database. The client then initializes and binds its TCP/IP protocol stack and can begin network communication.
-
-
Portal - The failure occurred in the Captive Portal phase.