DLPI Primitives
Primitives to Handle XID and TEST Operations
The message is valid in states DL_IDLE and DL_DATAXFER.
New State
The resulting state is unchanged.
Response
On an invalid TEST command request, a DL_ERROR_ACK is issued to the user. If the DLS provider receives a response from the remote side, a DL_TEST_CON is issued to the DLS user. It is recommended that the DLS user use a timeout procedure to recover from a situation when there is no response from the peer DLS user.
Reasons for Failure
DL_OUTSTATE
Primitive was issued from an invalid state.
DL_BADADDR
DLSAP address information was invalid or was in an incorrect format.
DL_SYSERR
A system error has occurred and the UNIX system error is indicated in the DL_ERROR_ACK.
DL_NOTSUPPORTED
Primitive is known but not supported by the DLS provider.
DL_TESTAUTO
Previous bind request specified automatic handling of TEST responses.
DL_UNSUPPORTED
Requested service not supplied by provider.
DL_TEST_INDConveys the TEST indication DLSDU from the DLS provider to the DLS user.
Format
128 | Chapter 2 |