Diagnostic Messages

 

 

 

 

 

X.25 Diagnostic Messages

Table C-2

Packet Type Invalid (Continued)

 

 

 

 

 

 

 

25 (CLEAR)

 

Packet type

 

Invalid packet received on VC in state P6 (DTE

 

 

 

invalid for state

 

Clear Request).

 

 

 

P6.

 

 

 

 

 

 

 

 

 

27 (RESET)

 

Packet type

 

Invalid packet received on VC in state D1 (Flow

 

 

 

invalid for state

 

Control Ready).

 

 

 

D1.

 

 

 

 

 

 

 

 

 

29 (RESET)

 

Packet type

 

Invalid packet received on VC in state D3 (DCE

 

 

 

invalid for state

 

Reset Indication).

 

 

 

D3

 

 

 

 

 

 

 

 

Table C-3Packet Not Allowed

 

 

 

 

 

 

 

 

Diagnostic

 

ISO

 

Explanation

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

33 (RESTART,

Unidentifiable

 

Packet that cannot be identified (3rd byte of the

 

CLEAR,

 

packet.

 

level 2 information field not defined in CCITT

 

RESET)

 

 

 

X.25 Recommendation received).

 

 

 

 

 

REJECT or REGISTRATION packet received.

 

 

 

 

 

 

 

34 (CLEAR)

 

Call on one way

 

If configured as DTE, CALL INDICATION

 

 

 

logical channel.

 

received with logical channel identifier (LCI)

 

 

 

 

 

corresponding to one-way logical channel

 

 

 

 

 

outgoing.

 

 

 

 

 

If configured as DCE (DXE), CALL

 

 

 

 

 

INDICATION received with logical channel

 

 

 

 

 

identifier (LCI) corresponding to one way logical

 

 

 

 

 

channel incoming.

 

 

 

 

 

 

38 (RESTART,

Packet too

 

Received packet is less than minimum length. It

 

CLEAR,

 

short.

 

may be a CALL INDICATION packet without

 

RESET)

 

 

 

address length or facility length fields, CLEAR

 

 

 

 

 

or RESET INDICATION without cause field, or

 

 

 

 

 

the packet length may be insufficient to hold

 

 

 

 

 

address or facility fields.

 

 

 

 

 

 

Appendix C

245