keepalive

This attribute enables LM-NT-OS/2 and NetWare file service connection processes to detect and close incorrectly-terminated client sessions, such as when a user turns off a client PC with a session open. You do not need to use this attribute unless the transport protocol does not provide its own keepalive function. The number variable represents the time interval, in minutes, between checks for dead connections. This attribute defaults to 0, which means the server does not use keepalives.

Usage:

tnservice -M -r {NB|NW} -s service -a keepalive=number