This read-only counter tracks how many times the switch has forwarded a substantive EAP-Request, beyond the initial identity or simple result messages, to the client, marking the point where a specific EAP authentication method has been selected and challenge-response begins. An administrator checks this to confirm the exchange progressed past basic identity handling into the actual credential and method negotiation phase. For example, a session showing successful identity exchange but zero here suggests the authentication server never proceeded to challenge the client with an actual EAP method.