CHGTELNA command changes

Change TELNET Attributes (CHGTELNA) command is changing the Session keep alive timeout (TIMMRKTIMO) range.

The Change TELNET Attributes (CHGTELNA) command is changing the Session keep alive timeout (TIMMRKTIMO) range. It is changed from 0-2147483647 to 1-2419200 to match the limits allowed on the TCP keep alive (TCPKEEPALV) parameter of the Change TCP/IP Attributes (CHGTCPA) command and the system implemented limits for socket attributes.

Any value outside the new range is set to the maximum value 2419200, which is equivalent to 28 days. Message TCP1F11 - 'Config file member successfully converted' is sent to the joblog and to the QSYSOPR message queue if this value was changed to conform with the allowed range.