Cabletron Systems 1800 - Manual (Page 388)

B-2 SmartSwitch 1800 4. 0 User G uide, Rev 01
Reset Causes
An SVC or PVC may be reset when an error occurs during data transmission. The reset
causes transmission to be re-synchronized, and informs the user that some data might
have been lost. The reset cause sent in a Reset packet provides a high-level indication
of why the call was reset.
From DCE From DTE
Hex. Dec. Hex. Dec. Description
00 00 80 128 DTE originated
01 01 81 129 Out of order (PVC only)
03 03 83 131 Remote procedure error
05 05 85 133 Local procedure error
07 07 87 135 Network congestion
09 09 89 137 Remote DTE operational (PVC only)
0F 15 8F 143 Network operational (PVC only)
11 17 91 145 Incompatible destination
1D 29 9D 157 Network out of order (PVC only)
Restart Causes
When a port is restarted, all active SVCs and PVCs through the port are cleared. The
restart cause sent in a Restart packet provides a high-level indication of why the port
was restarted.
From DCE From DTE
Hex. Dec. Hex. Dec. Description
00 00 80 128 Local procedure error
03 03 83 131 Network congestion
07 07 87 135 Network operational
7F 127 FF 255 Registration/cancellation confirmed
Diagnostic Codes
X.25 Codes
These diagnostic codes are generated by the X.25 network in Clear, Reset, and Restart
Indication packets, as well as Registration Confirmation and diagnostic packets:
Hex. Dec. Description
00 00 No additional Information
01 01 Invalid P(s)
02 02 Invalid P(r)
10 16 Packet Type Invalid
(Restart Transfer Phase)
11 17 Packet type Invalid for State r1 Packet Level Ready
12 18 Packet type Invalid for State r2 DTE Restart Request
13 19 Packet type Invalid for State r3 DCE Restart Indication
(Call Setup Phase)
14 20 Packet type Invalid for State p1 Ready
15 21 Packet type Invalid for State p2 DTE Waiting