MSIR.0573 SSL client trying to use unsupported protocol: (protocol)

A client (probably a web browser) tried to connect to an SSL port but tried to use an SSL protocol that is explicitly blocked by the SSLPROT parameter in the JANUS DEFINE command for the port being connected to. Note that setting SSLPROT to 2 will, somewhat counter-intuitively, prevent access to the port with SSL V2.

Either eliminate the SSLPROT parameter from the port definition, set it to allow the excluded protocol, set up an SSLPROTOCOLERR handler, or upgrade the browser to support the excluded protocol.

Message attributes:

RETCODEO=0	Sets online return code
RETCODEB=4	Sets batch (single user) return code
CLASS=E	Error class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter
AUDITER	Writes the message with line type ER to the audit trail
COUNT	Increments the error count (ERCNT) parameter
NOTERM	Does not display the message on the user's terminal

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