1 |
The page heading contains the report name, report
parameter, and the date the report was printed or displayed. |
2 |
- MESSAGE NUMBER
- The ACF/TAP-assigned number for this message.
|
3 |
- TYPE
- This field indicates the trace type:
- B
- Buffer or PIU
- G
- GPT
- L
- Line
- N
- NTO trace
- T
- TG trace
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4 |
- DIRECTION
- Direction pertains to the host for buffer trace and to NCP for
line trace.
- I
- Inbound
- O
- Outbound
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5 |
- SDLC ADDRESS
- (TIME/SDLC: Alternate (ALT) report)
- TIME (Alternate report only)
- Timestamp for the entry.
- SDLC ADDRESS
- The A field of the SDLC F-A-C-BCC-F frame.
- CMND/RESP
- SDLC frame type.
- C
- Command
- R
- Response
- POLL/FINAL
- Setting of SDLC poll/final bit in the SDLC "C" (command) field.
- S
- Bit is set.
- Blank
- Bit is not set.
- RECEIVE
- The receive count in decimal from the SDLC "C" field for information
and supervisory frames
- SEND
- Send count in decimal from the SDLC "C" field for information
and supervisory frames.
- TYPE CMD
- SDLC command type.
- I
- Information frame.
- S
- Supervisory frame.
- N
- Nonsequenced frame.
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6 |
- TRANSMISSION HEADER
- This header includes the following fields:
- FORMAT IDENTIFIER (FID)
- Transmission header type.
- 0
- FIDO
- 1
- FID1
- 2
- FID2
- 3
- FID3
- 4
- FID4
- C
- NLP (HPR)
- F/M/L/ ( =ENTIRE) SEGMENT
- Mapping indicator.
- F
- First segment
- M
- Middle segment
- L
- Last segment
- Blank
- Entire segment
- EXPEDITED
-
- E
- Expedited
- Blank
- Not expedited
- NETWORK NAMES (Alternate report only)
- This is the network name associated with the network address.
- NETWORK ADDRESSES
-
- 2-byte (FID0 and FID1) network addresses
- 1-byte (FID2) network addresses (or 17-bit FID2 LFSID)
- 4-byte subarea fields and the 2-byte element addresses (FID4)
in the TH.
The origin address always precedes the destination address (FID2).
- SEQNO
- Transmission header sequence number in hexadecimal.
- COUNT
- Transmission header data count field converted to decimal.
- FROM/TO PU (FID3)
- Local session identifier.
- FID3 LSID
- SSCP/LU identifier.
- S
- SSCP
- Blank
- Logical unit
- FROM/TO SSCP (FID0):
- PU/LU indicator
- P
- Physical unit
- Blank
- Logical unit
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7 |
- REQUEST HEADER
- This header includes the following fields:
- REQUEST(Q)/RESPONSE(S)
- Setting of request or response indicator in the request header
of a data entry. This can be one of the following values:
- Q
- Request
- S
- Response
- +
- Positive response
- -
- Negative response
- SC/DFC/NC/ ( =FMDATA) RU
- Request or response unit category. This can be one of the following
values:
- S
- Session control
- D
- Data flow control
- N
- Network control
- Blank
- FM data
- FORMATTED
- Format indicator. This can be one of the following values:
- F
- Formatted.
- Blank
- Unformatted
- F/M/L( =ONLY) CHAIN
- Chaining control. It can have one of the following values:
- F
- First request or response unit in chain.
- M
- Middle request or response unit in chain.
- L
- Last request or response unit in chain.
- Blank
- Only request or response unit in chain.
- REQUEST/RESPONSES
- Response bits settings. It can have one of the following values:
- DR1
- FME bit is set.
- DR2
- RN bit is set.
- EXCEPTION
- Exception bit is set.
- Blank
- No bits are set.
- PACING INDICATOR
-
- P
- Bit is set.
- Blank
- Bit is not set.
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7 (Continued) |
- BEGIN BRACKET INDICATOR
-
- B
- Bit is set.
- Blank
- Bit is not set.
- END BRACKET INDICATOR
-
- E
- Bit is set.
- C
- Conditional end bracket is set.
- Blank
- Neither bit is set.
- CHANGE DIRECTION IND (Indicator):
-
- S
- bit is not set.
- Blank
- Bit is not set.
- ALT CODE
- Code selection indicator. It can have the following values:
- A
- Bit is set.
- Blank
- Bit is not set.
- COMMAND
- The abbreviation of the network control, session control, or data
flow control command or response, or the abbreviation of the FM data
of an SSCP network services command or response, or the BTU command
of a BSC device.
- SENSE
- The 4 bytes of sense data if the sense data bit is set in the
request header.
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