HP-UX TN3270 Users Guide, March 1998

274 Appendix B
Status Line Information
Session Status Messages
Session Status Messages
The following Session Status messages tell you whether your computer
and the host system are ready to communicate:
S
At initialization, this message indicates that the
TN3270 emulation program is not yet connected to the
host; after a few seconds, it should change to one of the
other messages in this list.
If the session has started but has been interrupted,
this message indicates that the connection to the host
has failed. There should be a communications check
code (-+z_nnn) displayed; check this in
“Communications Check Codes”.
SB?
The TN3270 emulation program is connected to the
host, but the 3270 LU has not yet been activated. This
message should change to SB* after a few seconds.
SBN
The session is in Network Virtual Terminal (NVT)
mode, usually because it is negotiating whether to use
TN3270, TN3270E, or TN3287 protocols. Data that
appears on the screen is NVT data, not 3270 data.
SB*
The display station is in session with the host
component called System Services Control Point
(SSCP) which handles logging on. The LU has been
successfully activated.
Either you have not yet logged on to a host application,
in which case you should enter the appropriate logon
command for the required host application, or you have
used the SYSREQ key (default keystroke Ctrl + Y) to
switch to the host control session, in which case you
should use SYSREQ again to return to the application
session.
SB#