Understanding the Successful Connects Metric
The “Successful Connects” 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 “Successful Connects” 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.