The value of the parameter (an integer) represents
the number of seconds between keepalive
packets. If this parameter is zero, no keepalive packets will be
sent. Keepalive packets, if sent, allow the server to tell whether
a client is still present and responding.
Keepalives should, in general, not be needed if the socket
has the SO_KEEPALIVE attribute set on it by default. (see ).
Basically you should only use this option if you strike difficulties.
Please note this option only applies to SMB1 client connections, and
has no effect on SMB2 clients.