APN Configuration and Management Manual

PTrace Reference for SNAX/XF and SNAX/APN

SNAX/XF and SNAX/APN Configuration and Management Manual—425836-006

15-65

255: CLIP^TRACE^BLOCK

17:13:56.74 L1 State: #3 Event: #12

is a subrecord indicating a state transition within the CLIP level-1 state machine.

The information in this record is for HP internal use.

17:13:56.74 SDLC Out C8: I0,0 ...

is a subrecord containing an outgoing SDLC frame.

is the address field (PU address) of the frame.

I0,0

describes the contents of the control field. The first letter identifies the type of

frame; it is one of the following:

For an information frame, the next characters in this field are two integers

separated by a comma, as shown above. The first number is the Nr value, and

the second number is the Ns value.

For a supervisory frame, the abbreviation for the supervisory command (RR,

RNR, or REJ) appears following the letter S. The command may be followed

by a frame count.

For an unnumbered frame, the abbreviation for the SDLC command or

response (for example, SNRM or UA) appears following the letter U.

For all three types of frames, the presence of the characters -P or -F indicates

that the poll/final (P/F) bit is set; the absence of these characters, as in the

example above, indicates that the poll/final bit is not set.

The control field is described fully in the IBM Synchronous Data Link Control

Concepts manual.

Frame bytes: n

gives the total number of bytes in the frame. This is the total length of the

frame, even if a small RECSIZE value in the TRACE command caused the

data in the trace record to be truncated.

C800 2D00 ...

is the contents of the frame, starting with the address field. In this case, the

frame is an activate logical unit (ACTLU) request.

I Information frame

S Supervisory frame

U Unnumbered frame