TN3270e Server Manual
TN3270e Server Messages
TN3270e Server Manual—422923-003
D-3
4 
opcode 
is the socket operation that returned the error. 
err 
identifies the error returned by the Transmission Control Protocol/Internet Protocol 
(TCP/IP) process.
subdev 
is the name of the window associated with the session during which the error 
occurred.
host-name 
is the name of the internet protocol (IP) host (if known) running the TN3270e 
server client session.
ipaddr 
is the remote internet protocol (IP) address of the client of the TN3270e server 
session. 
port 
is the remote port number of the client of the TN3270e server session.
Cause. An error occurred on an input/output (I/O) operation to the TCP/IP process for 
the specified session. 
Effect. The session is terminated.
Recovery. Consult the TCP/IP Programming Manual for a definition of the error. If the 
error was due to a network problem, attempt to reestablish the session. If the error is 
4022: Invalid Argument, or 4108: Unknown Option, review the client’s socket 
parameters and procedures and then retry the session connection. Restart the TCP/IP 
process if the failure repeats or for other error conditions.
Session opcode Error err Window subdev 
[ Host: host-name ] IPADDR=ipaddr PORT=port










