VCC1 entry for CNCB queued (Part 1)

The VCC1 trace record is written when a CNS protocol control block (CNCB) is queued between CNS and LSA components. The VCC2 trace record displays data contained in the CNCB.

Byte (hex)

Contents

00–03

Record ID: C"VCC1"

04

ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.

05

Control block identifier

X'0B'

ISTVLNCB

X'7B'

ISTRIB

06

Process state of the control block processing the dequeued work element:

• LSNCB states when CBID=X'0B' (ISTVLNCB)

  X'00'

  Reset

  X'01'

  Pending active

  X'02'

  Active without application logged on to line

  X'03'

  Active with application logged on to line

  X'04'

  Pending inactive phase 1

  X'05'

  Pending inactive phase 2

  X'06'

  Pending inactive phase 3

  X'07'

  Blocked

• States when CBID=X'7B' (ISTRIB)

  X'00'

  Idle

  X'01'

  Logon in progress

  X'02'

  Active

  X'03'

  Logoff in progress

  X'04'

  DACTLINK in progress

  X'05'

  Forced termination in progress

07

CNCB primitive code

X'01'

CNS_INQUIRE_REQUEST

X'02'

CNS_INQUIRE_CONFIRM

X'03'

CNS_LOGON_REQUEST

X'04'

CNS_LOGON_CONFIRM

X'05'

CNS_LOGOFF_REQUEST

X'06'

CNS_LOGOFF_CONFIRM

X'07'

CNS_LOGOFF_RESPONSE

X'08'

CNS_LOGOFF_INDICATION

X'09'

CNS_CLOSEACB_REQUEST

X'0A'

CNS_CLOSEACB_CONFIRM

X'0B'

CNS_CLOSEACB_COMPLETION_INDICATION

08–0B

Address of the major control block

0C–0F

CNCB address

10–13

Requesting module abbreviated name

14–1F

First 12 bytes of CNCB data