session
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... terminals in the IBM SNA network environment have two sessions
with the host computer application. One is used for communicating
...
... TN3270, this
distinction is not apparent or relevant since there is actually only
a single telnet session with the host computer or server. On an IBM
SNA ...
... network, the 3270 terminal has a special key that toggles between
the two sessions (SYSREQ). A brief discussion on how some telnet
...
... In an SNA environment, a client session is identified by a Logical
Unit (LU) name. In a non-SNA ...
... using these servers have no defined way to determine the LU name
associated with the session.
...
...
Additional options may be used during a TN3270 session and are
interpreted as per their respective RFCs. These are [1] 3270-REGIME,
...
...
Commands that may be encountered during a TN3270 session and are
described in RFC 854std8 [11 ...
... connection the socket is closed by one of the
session partners. Typically, when the user logs off of the host, the
telnet ...
... requirements for a valid TN3270 session. The telnet
client would then process data from the server as though it were NVT
...
... Testing for session presence ...
... host application as an ATTN key. In other words, the
server representing an SLU in an SNA session would send
a SIGNAL RU to the host application.
...
... this environment when the host application becomes locked or the user
wishes to terminate the session without closing the Telnet
connection ...
... key toggles the terminal between the host application session and the
SSCP session. Usually the user will enter LOGOFF once this key has
...
... host application session and the
SSCP session. Usually the user will enter LOGOFF once this key has
been pressed to terminate the application session and then select a
...
... SSCP session. Usually the user will enter LOGOFF once this key has
been pressed to terminate the application session and then select a
new host to connect to. Sometimes, if SYSREQ is pressed again, the
...
... telnet client. The data format
during the SSCP session is in a slightly different format than normal
3270 data. Since the telnet server has no way to pass this data
...
... connection be associated with a given 3270 device-name. This
can be of importance when a terminal session is being
established, since many host applications behave differently
...
... image in a SNA environment
contains a detailed description of the session between the
telnet server and the host ...