IBM 3274 User Manual page 117

Procedure 18: Display-to-Host Link Check with a 3299 in
the Network
001
Is an A or B symbol displayed to the right side of the
D
symbol in the operator information area, indicating that
the display station is logically connected to the host
system?
Y N
I
002
Go to Procedure 13 on page 2-34.
003
Is the host system operating without error and
communicating with the failing 3274 Control Unit?
Y N
I
005
I
004
When the host problem has been resolved, resume
operation.
Is an·
><
Prog (program check) symbol followed by a 3-digit
code (nnn code) displayed in the operator information
area, indicating a program check?
Y N
I
006
Go to Procedure 19 on page 2-44.
007
Perform problem determination prescribed by the 3-digit nnn
code, using the display station problem determination guide
(see "Related Publications" on page iv of this guide for
publication order numbers) and the 3270 Information Display
System: Reference Summary, GX20-1878-5 or higher.
2-42