IBM 3745 Problem Determination Manual page 330

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Token-Ring' Problems
MSA Fields Definition (Token-Ring/TIC Information)
Field
m
Field
EI
Field
a
Field
D
CUSTOMER IV: 3745-219 SERIAL NUMBER:
CCU-A SELECTEO PROCESS MOSS OFFLINE
RUN STOP- I OC-CHK STOP-CCU-CHK
BIOISCONNECT
IB'
I OPEN
INCP TRS NOT AVAILABLE
I
~ ~ ~.~ ~
FiQure 12-1. MSA Fields definition (Token-ring Information) .
Token-Ring information is displayed on line 4 for CCU-A, and on line 7 for
CCU-B.
TRA number (1, 2, 5 or 6). Indicates that the TRA has been selected (TRS or
TID function).
TRA mode, updated after TRA selection
Note: If field F indicates CCU INTERRUPTS DISABLED, the TRA mode has no
meaning. Refer to CCU information in MSA field descriptions of the 3745
Advanced Operations Guide.
The possible modes are:
CONNECT: The TRA is operational and is under NCP control. The control
program handles all interrupts (except in the case of an MIOH
error).
The PIO disable and the disconnect bits in the TRM level 1
error status are OFF.
·DISCONNECT:
The TRA does not run under the control of the control program
but under the control of the MOSS microcode. MOSS handles
all interrupts and PIOs to/from the TIC.
UNKNOWN:
TIC1 or TIC2
TIC
n:
The PIO disable and the disconnect bits in the TRM level 1
error status are OFF.
A non-recoverable error occurred during the
connection/disconnection process, or an MIOCIIOe errOf
occurred whi,le getting level 1 error status during TRA
selection. ConnectJdisconn~ct may be re-tried.
Selected TIC number (1 or 2), updated after a TIC selection.
Current mode of the selected TIC, updated after
a
TIC selection or a refresh of
the screen display
The TIC must be in one of the seven following modes (as reported by NCP):
IDLE:
The TIC·has not yet been reset by NCP.
RESET: The TIC has been reset by NCP but has not yet been initialized.
INITIALIZED: The TIC has been initialized but has not yet been open or
disabl-ed. Initialization parameters have been passed to the
TIC by NCP.
Chapter 12. Token-Ring Interconnection (TRI) Problems
12-9