User's Manual

Diagnostic Messages
X.25 Diagnostic Messages
Appendix C 253
Table C-4 Timer Expired
Diagnostic
ISO
Description
Explanation
48 (CLEAR) Timer expired
(generic).
IP circuit is disconnected because it
was inactive for more than the
configured minimum time limit and
the system must free the circuit to
complete CALL REQUEST.
49 (CLEAR) Timer expired
for
INCOMING
CALL or DTE
timer expired
for CALL
REQUEST.
CALL CONFIRM not received within
the T21 time limit (set at
approximately 200 seconds) after
transmission of CALL REQUEST.
50 (CLEAR) Timer expired
for CLEAR
INDICATION
(or DTE timer
expired or
retransmission
count
surpassed for
CLEAR
REQUEST).
CLEAR CONFIRM not received
within T23 time limit (set at
approximately 180 seconds) after
transmission of CLEAR REQUEST.
After a certain number of CLEAR
retries, system places logical channel
in state P1 (Ready).
51 (CLEAR,
RESET)
Timer expired
for RESET
INDICATION
(or DTE timer
expired or
retransmission
count
surpassed for
RESET
REQUEST).
RESET CONFIRM not received
within T22 time limit, set at
approximately 180 seconds, after
transmission of RESET REQUEST.
After a certain number of RESET
retries, the system places logical
channel in state D1 (Flow Control
Ready) if PVC, or in state P6 (DTE
Request) by sending CLEAR
REQUEST if SVC.
Count of RESET retries has been
surpassed. CLEAR REQUEST has
been sent.