tcpkeepalive: support setting TCP keep-alive parameters on Solaris <11.4 #13864
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Solaris didn't support TCP_KEEPIDLE and TCP_KEEPINTVL until 11.4, before that it use TCP_KEEPALIVE_THRESHOLD and TCP_KEEPALIVE_ABORT_THRESHOLD as the substitute. Therefore, for Solaris <11.4 we need to use this substitute for setting TCP keep-alive parameters.
Ref:
https://docs.oracle.com/cd/E86824_01/html/E54777/tcp-7p.html
https://docs.oracle.com/cd/E88353_01/html/E37851/tcp-4p.html