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