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.\"
.IX Title "STCPCLO 1"
.TH STCPCLO 1 "2016-07-07" "perl v5.24.1" "BP executables"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
stcpclo \- DTN simple TCP convergence layer adapter output task
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBstcpclo\fR \fIremote_hostname\fR[:\fIremote_port_nbr\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBstcpclo\fR is a background \*(L"daemon\*(R" task that connects to a remote node's
\&\s-1TCP\s0 socket at \fIremote_hostname\fR and \fIremote_port_nbr\fR.  It then begins
extracting bundles from the queues of bundles ready for transmission via
\&\s-1TCP\s0 to this remote bundle protocol agent and transmitting those bundles
over the connected socket to that node.  Each transmitted bundle is
preceded by a 32\-bit integer in network byte order indicating the length
of the bundle.
.PP
If not specified, \fIremote_port_nbr\fR defaults to 4556.
.PP
Note that \fBstcpclo\fR is not a \*(L"promiscuous\*(R" convergence layer daemon: it
can transmit bundles only to the node to which it is connected, so
scheme configuration directives that cite this outduct need only provide
the protocol name and the outduct name as specified on the command line
when \fBstcpclo\fR is started.
.PP
\&\fBstcpclo\fR is spawned automatically by \fBbpadmin\fR in response to the 's' (\s-1START\s0)
command that starts operation of the Bundle Protocol, and it is terminated by
\&\fBbpadmin\fR in response to an 'x' (\s-1STOP\s0) command.  \fBstcpclo\fR can also be
spawned and terminated in response to \s-1START\s0 and \s-1STOP\s0 commands that pertain
specifically to the \s-1STCP\s0 convergence layer protocol.
.SH "EXIT STATUS"
.IX Header "EXIT STATUS"
.ie n .IP """0""" 4
.el .IP "``0''" 4
.IX Item "0"
\&\fBstcpclo\fR terminated normally, for reasons noted in the \fBion.log\fR file.  If
this termination was not commanded, investigate and solve the problem identified
in the log file and use \fBbpadmin\fR to restart the \s-1STCP\s0 protocol.
.ie n .IP """1""" 4
.el .IP "``1''" 4
.IX Item "1"
\&\fBstcpclo\fR terminated abnormally, for reasons noted in the \fBion.log\fR file.
Investigate and solve the problem identified in the log file, then use
\&\fBbpadmin\fR to restart the \s-1STCP\s0 protocol.
.SH "FILES"
.IX Header "FILES"
No configuration files are needed.
.SH "ENVIRONMENT"
.IX Header "ENVIRONMENT"
No environment variables apply.
.SH "DIAGNOSTICS"
.IX Header "DIAGNOSTICS"
The following diagnostics may be issued to the \fBion.log\fR log file:
.IP "stcpclo can't attach to \s-1BP.\s0" 4
.IX Item "stcpclo can't attach to BP."
\&\fBbpadmin\fR has not yet initialized Bundle Protocol operations.
.IP "No such stcp duct." 4
.IX Item "No such stcp duct."
No \s-1STCP\s0 outduct with duct name matching \fIremote_hostname\fR and
\&\fIremote_port_nbr\fR has been added to the \s-1BP\s0 database.  Use \fBbpadmin\fR to
stop the \s-1STCP\s0 convergence-layer protocol, add the outduct, and then restart the
\&\s-1STCP\s0 protocol.
.IP "\s-1CLO\s0 task is already started for this duct." 4
.IX Item "CLO task is already started for this duct."
Redundant initiation of \fBstcpclo\fR.
.IP "Can't get \s-1IP\s0 address for host" 4
.IX Item "Can't get IP address for host"
Operating system error.  Check errtext, correct problem, and restart \s-1STCP.\s0
.SH "BUGS"
.IX Header "BUGS"
Report bugs to <ion\-bugs@korgano.eecs.ohiou.edu>
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIbpadmin\fR\|(1), \fIbprc\fR\|(5), \fIstcpcli\fR\|(1)