The LAN channel station error return codes provide a consistent
platform to report the status of user requests or abnormal conditions
detected by the service provider. The error return codes are used
on the following occasions.
- If an error or exceptional condition is detected during the execution
of a request, the error code is carried as the completion codes in
the corresponding response.
- If an error or exception condition is asynchronously detected
by the service provider while no related request from the service
user is outstanding, the error code is reported as a part of the common
status in a provider-initiated request, such as Close_Station_Indication.
The following list contains frequently used abbreviations.
- 802.2
- IEEE LAN Standard 802.2
- 802.3
- IEEE LAN Standard 802.3
- 802.4
- IEEE LAN Standard 802.4
- 802.5
- IEEE LAN Standard 802.5
- IEEE
- Institute of Electrical and Electronic Engineers
- LAN
- Local area network
- LLC
- Logical link control
- MAC
- Medium access control
- SAP
- Service access point
The two-byte LAN return codes are based on the architectural
layer that detected the error. Byte 0 is the general classification,
and Byte 1 is the specific completion code.