NBT Manual

NBT Commands
NBT Manual—424773-001
3-45
SOCKET^KA
SOCKET^KA
SOCKET^KA controls keep-alive messages sent by the TCP Transport Layer. When a
NetBIOS session is active (6530 window, or WSPTP CALL or LISTEN), the TCP
Transport Layer periodically sends a special null message that is discarded by the
remote workstation TCP transport driver. This message verifies that the session is still
fully functional. If the message cannot be delivered, TCP eventually (in several minutes)
notifies NBT that the session has failed.
This feature works independently of, and at a lower level than, the RFC1001 keep-alive
feature; refer to RFC1001^KA
on page 3-41 for additional information. It is
recommended that both keep-alive mechanisms be used to provide timely notification of
session failure.
This parameter is not normally changed by the user. To display the current setting of this
parameter, use the INFO PROCESS command.
Y | N
Y enables the feature at session startup; N disables it. The default is Y.
SOCKET^KA Y | N
Note. Compaq NonStop TCP/IP software does not presently provide for controlling the
periodic interval, retry interval, or timeout values.