LNKx entry

This trace record is written when the link use count in the node control block (NCB) is incremented or decremented.

Byte (hex)

Contents

00–02

Record ID: C"LNK"

03

NCB type:

• C"LNKA" for AHNCB
• C"LNKI" for ICNCB
• C"LNKL" for LDNCB
• C"LNKR" for RPNCB
• C"LNKU" for AUNCB
• C"LNKX" for XCNCB

04

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

05

Reason for change to use count (DNPFUNC):

X'01'

Increment for boundary SLU element address (BLB)

X'02'

Increment for boundary PLU element address (BPAT)

X'03'

Increment for boundary SNA half-session (BSB)

X'04'

Increment for boundary non-SNA half-session (LUST)

X'05'

Increment for application half-session (FMCB)

X'06'

Increment for rapid transport protocol (RTP) half-session queue

X'07'

Increment for rapid-transport protocol (RTP)

X'F1'

Decrement for boundary SLU element address (BLB)

X'F2'

Decrement for boundary PLU element address (BPAT)

X'F3'

Decrement for boundary SNA half-session (BSB)

X'F4'

Decrement for boundary non-SNA half-session (LUST)

X'F5'

Decrement for application half-session (FMCB)

X'F6'

Decrement for line (NCB)

X'F7'

Decrement for rapid-transport protocol (RTP) half-session queue

X'F8'

Decrement for rapid-transport protocol (RTP)

06–07

Element address (for boundary element address reasons)

08–0B

Link use count after the increment or decrement

0C–0F

Node control block (NCB) address

10–13

Address of control block associated with the increment or decrement

14–15

0

16–17

Element index value

18–1B

Module address or address of the issuer of the TSCDN caller

1C–1F

NCB Dependent Data

For LNKU entries:

Represents the number of non-RS (route setup) RTP pipes that originate in this host and traverse this Enterprise Extender connection.

For all other entries:

0