OSI/TS Configuration and Management Manual

X.25 Status Code Tables
OSI/TS Configuration and Management Manual—424831-001
B-3
Diagnostic Field Codes
Diagnostic Field Codes
Table B-3 (including the associated notes at the end of the table) is a copy of Table 14-B,
“Coding of the Diagnostic Code Field,” from ISO 8208, “Telecommunications and
Information Exchange Between Systems.”
Gateway-detected Procedure Error 1 1 0 0 0 0 0 1 3
Gateway Congestion 1 1 0 0 0 0 1 1 3
NOTE 1: Used when the Diagnostic Code Field is coded in accordance with Figure
14-B [in ISO 8208].
NOTE 2: Used when the Diagnostic Code Field is not coded in accordance with
Figure 14-B [in ISO 8208].
NOTE 3: These clearing causes apply only to a DTE/DCE environment.
NOTE 4: The bit indicated as “X” set to 0 indicates a clearing cause generated by a
public data network and set to 1 indicates a clearing cause generated by a
private network.
NOTE 5: May be received only if the corresponding optional user facility is used.
NOTE 6: Used in conjunction with maritime mobile service.
Table B-3. Diagnostic Field Codes (Page 1 of 6)
Diagnostic
Bits
8 7 6 5 4 3 2 1
Decimal
Value
Applicable Packets
(Note 1)
No Additional Information 0 0 0 0 0 0 0 0 0 D, Rr, C, Re, Rg
Invalid P(S) 0 0 0 0 0 0 0 1 1 Re
Invalid P(R) 0 0 0 0 0 0 1 0 2 Re
. . . . . . . .
0 0 0 0 1 1 1 1 15
Packet type invalid 0 0 0 1 0 0 0 0 16 Rr, C, Re
for state r1 0 0 0 1 0 0 0 1 17 Rr, C, Re
for state r2 0 0 0 1 0 0 1 0 18 Rr, C, Re
for state r3 0 0 0 1 0 0 1 1 19 Rr, C, Re
for state p1 0 0 0 1 0 1 0 0 20 C
for state p2 0 0 0 1 0 1 0 1 21 C
for state p3 0 0 0 1 0 1 1 0 22 C
Table B-2. Clear Cause Codes
Clear Cause
Octet 4
Bits
8 7 6 5 4 3 2 1 Notes