AZF9705E zVM TCP peer socket SD exceeds maximum, closing
Indicates a high inbound-connection rate. This message is not generated under normal server operation. This message can be caused by the client generating an unusually high number of connection requests that are never closed. If not corrected, this can ultimately result in the server not being able to accept new connection requests.
Investigate whether the high inbound-connection rate is consistent with authentication activity on the z/VM system or systems calling the IBM® MFA server, or whether the connections are being initiated from some other source on the network. Use network traces to detect whether all client source addresses are associated with z/VM hosts that you expect to contact the IBM MFA server via TCP/IP.