Diagnostic Messages

 

 

 

 

 

 

X.25 Diagnostic Messages

Table C-4

Timer Expired (Continued)

 

 

 

 

 

 

 

 

50 (CLEAR)

 

 

Timer expired

CLEAR CONFIRM not received within T23

 

 

 

 

for CLEAR

time limit (set at approximately 180 seconds)

 

 

 

 

INDICATION

after transmission of CLEAR REQUEST. After

 

 

 

 

(or DTE timer

a certain number of CLEAR retries, system

 

 

 

 

expired or

places logical channel in state P1 (Ready).

 

 

 

 

retransmission

 

 

 

 

 

count surpassed

 

 

 

 

 

for CLEAR

 

 

 

 

 

REQUEST).

 

 

 

 

 

 

 

 

 

51 (CLEAR,

 

 

Timer expired

RESET CONFIRM not received within T22

 

RESET)

 

 

for RESET

time limit, set at approximately 180 seconds,

 

 

 

 

INDICATION

after transmission of RESET REQUEST. After

 

 

 

 

(or DTE timer

a certain number of RESET retries, the system

 

 

 

 

expired or

places logical channel in state D1 (Flow

 

 

 

 

retransmission

Control Ready) if PVC, or in state P6 (DTE

 

 

 

 

count surpassed

Request) by sending CLEAR REQUEST if

 

 

 

 

for RESET

SVC.

 

 

 

 

REQUEST).

Count of RESET retries has been surpassed.

 

 

 

 

 

 

 

 

 

 

 

 

CLEAR REQUEST has been sent.

 

 

 

 

 

 

 

52 (RESTART)

Timer expired

RESTART CONFIRM not received within T20

 

 

 

 

for RESTART

time limit (set at approximately 180 seconds)

 

 

 

 

INDICATION

after transmission of RESTART REQUEST.

 

 

 

 

(or DTE timer

SABM frame received while in state R2 (DTE

 

 

 

 

expired or

 

 

 

 

RESTART REQUEST). RESTART REQUEST

 

 

 

 

retransmission

 

 

 

 

is transmitted.

 

 

 

 

count surpassed

 

 

 

 

 

 

 

 

 

for RESTART

 

 

 

 

 

REQUEST).

 

 

 

 

 

 

 

 

Table C-5Call Setup, Call Clearing, or Registration Problem

 

 

 

 

 

 

 

 

Diagnostic

 

 

ISO

 

Explanation

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Appendix C

247