This is the command tcpcli that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
tcpcli - DTN TCPCL-compliant convergence layer input task
SYNOPSIS
tcpcli local_hostname[:local_port_nbr]
DESCRIPTION
tcpcli is a background "daemon" task comprising 1 + N threads: one that handles TCP
connections from remote tcpclo tasks, spawning sockets for data reception from those
tasks, plus one input thread for each spawned socket to handle data reception over that
socket.
The connection thread simply accepts connections on a TCP socket bound to local_hostname
and local_port_nbr and spawns reception threads. The default value for local_port_nbr, if
omitted, is 4556.
Each time a connection is established, the end-points will first exchange contact headers,
because connection parameters need to be negotiated. tcpcli records the acknowledgement
flags, reactive fragmentation flag and negative acknowledgements flag in the contact
header it receives from its peer tcpclo task.
Each reception thread receives bundles over the associated connected socket. Each bundle
received on the connection is preceded by message type, fragmentation flags, and size
represented as an SDNV. The received bundles are passed to the bundle protocol agent on
the local ION node.
tcpcli is spawned automatically by bpadmin in response to the 's' (START) command that
starts operation of the Bundle Protocol; the text of the command that is used to spawn the
task must be provided at the time the "tcp" convergence layer protocol is added to the BP
database. The convergence layer input task is terminated by bpadmin in response to an 'x'
(STOP) command. tcpcli can also be spawned and terminated in response to START and STOP
commands that pertain specifically to the TCP convergence layer protocol.
EXIT STATUS
"0" tcpcli terminated normally, for reasons noted in the ion.log file. If this
termination was not commanded, investigate and solve the problem identified in the log
file and use bpadmin to restart tcpcli.
"1" tcpcli terminated abnormally, for reasons noted in the ion.log file. Investigate and
solve the problem identified in the log file, then use bpadmin to restart tcpcli.
Use tcpcli online using onworks.net services
