Interoperability Testing

 

 

Reason and Refuse Codes

 

 

 

Code

Meaning

Action

 

 

 

(0x01)

Provider N-Disconnect (Transient)

The X.25 card or the switch

 

Previously active network connection was

may have gone down.

 

abruptly disconnected. Congestion at TSAP

Check the remote for any

 

Some vendor’s equipment may indicate that

 

further logged information.

 

the application above transport is not

 

 

 

capable of receiving any more connections.

 

 

 

 

(0x02)

Provider N-Disconnect (Permanent)

The X.25 card or the switch

 

Previously active network connection was

may have gone down.

 

abruptly disconnected. Transport User Not

Verify that server is active on

 

Attached to TSAP Indicates that the address

 

remote.

 

specified is valid, but that no process capable

 

 

 

of receiving connections is active.

 

 

 

 

(0x03)

Provider N_Reject (Transient) Network

Check the NSAP and T-

 

connection could not be established.

selector.

 

Address Unknown

 

 

Address specified was incorrect.

 

 

 

 

(0x04)

Provider N_Reject (Permanent) Request to

Check for facility rejection,

 

establish a network connection was rejected.

non-use of fast select, reverse

 

 

charge failure, switch or PDN

 

 

out of order.

 

 

 

(0x05)

Provider N_Reject (QOS unavail/ Transient)

 

 

QOS negotiation failed for this connection.

 

 

 

 

(0x06)

Provider N_Reject (QOS unavail/

 

 

Permanent)

 

 

QOS negotiation failed for this connection.

 

 

 

 

(0x07)

N-Reject (NSAP unreachable/ Transient)

Use x25stat to examine the

 

Network connection could not be established

state of the network card.

 

Check log file for OTS

 

because there were not enough VCs or

 

messages.

 

resources available.

 

 

 

 

 

Chapter 1

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