Telecommunications - Configuration of X.25 Networks


clear causes

hex code
00 DTE clearing
01 Number busy
03 Invalid call
05 Network congestion
09 Out of order
0B Access barred
0D Not obtainable
11 Remote procedure error
13 Local procedure error
15 RPOA out of order
19 Reverse charging not subscribed to
21 DTE incompatible call
29 Fast select not subscribed to
39 Ship absent

14.1 - CLEAR PACKET

The call can be cleared by either end (or in case of faults by the network) at any time during the call.

The CLEAR packet contains a 2 byte data field containing the cause and diagnostic bytes, these bytes give the reason for the clear and are therefore very useful for finding faults.

The first byte is the cause byte and is coded as shown opposite.

000 H01 No additional information
001 H01 INVALID P(S) RESET
002 H02 INVALID P(R) RESET
017 H11 PACKET TYPE INVALID FOr STATE r1 RESTART
018 H12 PACKET TYPE INVALID FOR STATE r2 RESTART
019 H13 PACKET TYPE INVALID FOR STATE r3 RESTART
020 H14 PACKET TYPE INVALID FOR STATE p1 CLEAR
021 H15 PACKET TYPE INVALID FOR STATE p2 CLEAR
022 H16 PACKET TYPE INVALID FOR STATE p3 CLEAR
023 H17 PACKET TYPE INVALID FOR STATE p4 CLEAR
024 H18 PACKET TYPE INVALID FOR STATE p5 RESET
025 H19 PACKET TYPE INVALID FOR STATE p6 CLEAR
026 H1A PACKET TYPE INVALID FOR STATE p7 CLEAR
027 H1B PACKET TYPE INVALID FOR STATE d1 RESET
028 H1C PACKET TYPE INVALID FOR STATE d2 RESET
029 H1D PACKET TYPE INVALID FOR STATE d3 RESET
032 H20 PACKET NOT ALLOWED
033 H21 UNIDENTIFIABLE PACKET
034 H22 CALL ON ONE-WAY LOGICAL CHANNEL CLEAR
035 H23 INVALID PACKET TYPE ON PVC RESET
036 H24 PACKET ON UNASSIGNED LCN CLEAR
037 H25 REJECT NOT SUBSCRIBED TO RESET
038 H26 PACKET TOO SHORT RESET
039 H27 PACKET TOO LONG RESET
040 H28 INVALID GFI CLEAR
041 H29 RESTART WITH NON-ZERO BITS 5-16
042 H2A PACKET TYPE NOT COMPATIBLE WITH FACILITY CLEAR
043 H2B UNAUTHORISED INTERRUPT CONF RESET
044 H2C UNAUTHORISED INTERRUPT RESET
049 H31 TIMER EXPIRED; INCOMING CALL
050 H32 TIMER EXPIRED; CLEAR INDICATION
051 H33 TIMER EXPIRED; RESET INDICATION
052 H34 TIMER EXPIRED; RESTART NND
064 H40 UNSPECIFIED CALL SET-UP PROBLEM CLEAR
065 H41 FACILITY CODE NOT ALLOWED CLEAR
066 H42 FACILITY PARAMETER NOT ALLOWED CLEAR
067 H43 INVALID CALLED ADDRESS CLEAR
068 H44 INVALID CALLING ADDRESS CLEAR
044 H90 DTE/DCE CONGESTION RESET
045 H91 RECEIVED FAST SELECT CLEAR REQUEST
046 H92 LINE RESTARTING BY INMC COMMAND RESTART
160 HA0 NON-ZERO RESET CAUSE FROM DTE RESET
161 HA1 DATA PACKET TOO LONG RESET
162 HA2 INTERRUPT PACKET TOO LONG RESET
163 HA3 INT PACKET TOO SHORT; NO USERDATA RESET
164 HA4 INT CONFIRMATION PACKET TOO LONG RESET
165 HA5 RR PACKET TOO LONG RESET
166 HA6 RNR PACKET TOO LONG RESET
167 HA7 RESET PACKET TOO LONG RESET
168 HA8 RESET CONF PACKET TOO LONG RESET
169 HA9 INVALID `Q' BIT IN DATA PACKET RESET
170 HAA PACKET WINDOW RANGE EXCEEDED RESET
171 HAB UNABLE TO TRANSMIT PACKET RESET
172 HAC `Q' BIT SET IN NON-DATA PACKET RESET
173 HAD OUTSTANDING PACKET COUNT LESS THAN ZERO RESET
174 HAE RETRANSMISSION ERROR RESET
175 HAF RESET PACKET TOO SHORT (NO CAUSE) RESET
176 HB0 REJECT PACKET TOO LONG RESET
177 HB1 INVALID 1D PACKET RESET
178 HB2 UNSUCCESSFUL RECONNECTION RESNC CLEAR
179 HB3 NON-RECONNECT CALL IN STATE C1 CLEAR
180 HB4 SECOND 1D PACKET FROM DTE CLEAR
181 HB5 BAD DATA TRANSFER STATE IN RECONNECT CLEAR
182 HB6 PACKET FORMAT INVALID CLEAR
183 HB7 FACILITY BYTE COUNT TOO LARGE CLEAR
184 HB8 INVALID PACKET DETECTED CLEAR
185 HB9 FACILITY/UTILITY FIELD BYTE COUNT > 63 CLEAR
186 HBA OUTGOING CALLS BARRED CLEAR
187 HBB INCOMING CALLS BARRED CLEAR
188 HBC CLEARING OF PVC CLEAR
189 HBD CALLED ADDRESS TOO LONG CLEAR
190 HBE CALLED ADDRESS TOO SHORT CLEAR
191 HBF CALLING ADDRESS TOO LONG CLEAR
192 HC0 CALLING ADDRESS TOO SHORT CLEAR
193 HC1 BCD ERROR IN CALL ADDRESS CLEAR
194 HC2 BCD ERROR IN CALLING ADDRESS CLEAR
195 HC3 USER DATA FIELD TOO LONG CLEAR
196 HC4 NO BUFFER AVAILABLE CLEAR
197 HC5 LOCAL DTE IS NOT ENHANCED CLEAR
198 HC6 FACILITY NEGOTIATION INVALID CLEAR
199 HC7 MANDATORY UTILITY NOT INPUT CLEAR
200 HC8 BUFFER NO AVAILABLE FOR TNIC CLEAR
201 HC9 OVERFLOW OF TNIC IN BUFFER CLEAR
202 HCA DTE LINECONGESTED CLEAR
203 HCB TABLE ERROR IN PACKET PROCEDURES
204 HCC INSERT TABLE OVERFLOW
205 HCD DELETE TABLE OVERFLOW
208 HD0 TRUNK LINE RESTART RESTART
209 HD1 INVALID EVENT IN STATE p2
210 HD2 INVALID EVENT IN STATE p3
211 HD3 INVALID 1D EVENT IN STATE d1
212 HD4 CALL COLLISION ON TRUNK LINE
213 HD5 NO BUFFER AVAILABLE
214 HD6 CALL COLLISION ON DTE LINE
215 HD7 DTE RESTART
216 HD8 CALL REQUEST TO TRUNK LINE TOUT
217 HD9 RECONNECT SET-UP TIMED OUT
218 HDA INVALID OUTPUT SIDE STATE
219 HDB ERROR DETECTED IN BLINK PACKET QUEUE PROCEDURE
220 HDC RESET INDICATION RETRANSMISSION COUNT EXPIRED
221 HDD INVALID OUTPUT SIDE STATE
222 HDE BLIND BUFFER QUEUE OVERFLOW IN STATE d4
223 HDF BLIND BUFFER QUEUE OVERFLOW IN STATE c1
224 HE0 BLIND BUFFER QUEUE OVERFLOW IN STATE c2
225 HE1 CLEAR PACKET BYTE COUNT TOO LARGE OR TOO SMALL
226 HE2 NON-ZERO CLEAR CAUSE
227 HE3 CLEAR CONF PACKET BYTE COUNT TOO SMALL OR TOO LARGE
228 HE4 CALL COLLISION
229 HE5 INVALID TP LOAD REQUEST CALL PKT
230 HE6 MAXIMUM HOPCOUNT EXCEEDED
231 HE7 ROUTING LOOP DETECTED
232 HE8 PVC CALL REQUEST FAILURE
233 HE9 RECONNECT CALL REQUEST FAILED
234 HEA NO LC AVAILABLE ON OUTPUT SIDE
235 HEB NO BUFFER AVAILABLE
236 HEC CALL REDIRECTION CLEAR
237 HED NO PATH ROUTE CALL
238 HEE CALL ROUTED TO DTE LINE
239 HEF CALL CANNOT BE REROUTED
240 HF0 ADDRESS NOT IN ROUTING TABLES
241 HF1 ROUTING TABLE CHANGE DURING CALL ROUTING
242 HF2 NO LC AVAILABLE ON FAKE TRUNK
243 HF3 REMOTE DTE DOWN ON A PVC
244 HF4 INVALID EVENT DETECTED
245 HF5 INVALID PACKET RECEIVED; STATE d4
246 HF6 INVALID PACKET RECEIVED; STATE d5
247 HF7 INVALID PACKET RECEIVED; STATE p8
248 HF8 INTERNAL PROCESSING FAILURE
249 HF9 INVALID RESTART INDICATION
250 HFA LINE STATUS CHANGE IN STATE r4
251 HFB INVALID PACKET RECEIVED; STATE r4
252 HFC INVALID PACKET RECEIVED; STATE r3
253 HFD LINE STATUS CHANGE IN STATE r2
254 HFE LINE STATUS CHANGE IN STATE r1
255 HFF LINE STATUS CHANGE IN STATE r0


 


 


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