SNAX/XF LU Network Services Manual

LUNS Configuration Tables
Introduction to LUNS
097841 Tandem Computers Incorporated 1–11
Figure 1-6. The ESS Table and LUNS Processing (Pathway)
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CRED, PLUNAME #CREATE, CONCDATA "PATHWAY NAME $PATHX
PROGRAM CREDIT"
Terminal
Creator
Process
TCP
LUNS
OPEN
LU
CRED CINIT
ESS Table
$PATH
X
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The terminal operator enters the character-coded command CRED.
LUNS searches the ESS table for a record named CRED and finds it. LUNS also finds
the Tandem Creator process's logical name (#CREATE) and a concatenated data field
specifying a PATHMON named $PATHX and a Pathway application program named
CREDIT.
LUNS sends the Tandem creator process a CINIT request with the concatenated data
included.
The Creator process sends $PATHX the name of the terminal and of the Pathway
application program (CREDIT).
$PATHX instructs the terminal control process (TCP) to open the terminal.
The TCP opens the terminal on behalf of the Pathway application program (CREDIT).
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See Appendix D for high-level flow diagrams that show logons and logoffs for host
applications and logons and logoffs for static passthrough applications.