An SNA IMF LU-LU session initiated by an LU in the HP 3000
node is started by sending a character-coded logon message to the
IBM host. The issued logon causes an INITiate-SELF (INIT-SELF) request
to be sent to the SSCP.
In processing the INIT-SELF request, the SSCP determines whether the
host LU is accepting session-initiation requests. The SSCP then sends
a Control INITiate (CINIT) request to the host LU. The host LU then
sends a BIND request to the HP 3000 LU. The BIND protocols specified
in the request must be accepted by the HP 3000. If the protocols
are acceptable, the HP 3000 LU sends a positive response
and the LU-LU session is established. The host LU notifies the SSCP
that the session has been established, by sending a SESSion STarted (SESSST)
request. The host LU sends a Start Data Traffic (SDT) request to
the HP 3000 LU, to allow data requests to be transmitted.
Figure 4-1 “LU-LU Session Initiated by HP 3000
LU” shows an SNA IMF LU-LU session
initiated by the HP 3000 LU.
Figure 4-1 LU-LU Session Initiated by HP 3000
LU
