Interoperability Testing

 

 

Reason and Refuse Codes

 

 

 

Code

Meaning

Action

 

 

 

(0x1a)

Network Reset from NS User (Resynch)

X.25 diagnostic indicates

 

Network connection was reset.

resynchronization was

 

requested.

 

 

 

 

 

(0x20)

Undefined reason, unknown origin Indicates

Check for down card on local

 

some X.25 problem.

or remote, switch, or facilities

 

 

negotiation.

 

 

 

(0x21)

Invalid Parameter (OTS Kernel)

Check for NSAPs that are too

 

An encoded parameter is invalid.

large or missing.

 

 

 

 

 

(0x22)

External Protocol Error (OTS Kernel)

An error should be logged

 

Failure decoding facility information.

describing the protocol error.

 

 

 

 

 

(0x23)

Invalid Internal State (OTS Kernel)

An error should be logged

 

A network primitive was received or is to be

describing the protocol error.

 

 

 

sent in an unexpected state.

 

 

 

 

(0x24)

Facility or Data Field Overflow (OTS Kernel)

An error should be logged

 

Processing of the facility fields indicated

describing the protocol error.

 

 

 

failure

 

 

 

 

(0x41)

X.25 Facility Requested not Allowed

Determine the facilities

 

The configured X.25 facilities do not match

available and reconfigure

 

OTS and X.25 to use the

 

those of the provider.

 

appropriate set.

 

 

 

 

 

(0x42)

Could not Access X.121 Address of Remote

Reset the remote system or

 

The X.121 address mapped to the NSAP you

reconfigure the OTS routing

 

table appropriately.

 

specified is incorrect or the remote system is

 

 

 

down.

 

 

 

 

(0x81)

Remote Transport Entity Congestion at

 

 

Connect Time

 

 

Indicates that no problems were detected

 

 

with the Transport layer, but user of service

 

 

may have sent an abort or other higher level

 

 

error.

 

 

 

 

Chapter 1

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