ACC HDLC/LAP-B (ABM) User's Guide

Chapter 3 39
Using HDLC/LAP-B (ABM) Protocol
Status and Error Messages
69 ST25TXFR Reset/Disc. due to transmitted FRMR
A frame containing an error was received by th e
protocol; this causes LAP-B to reset the link by sending
a FRMR. For consistent error handling between LAP-B
and LAP-D (which sends a SABME instead of a
FRMR), the latter protocol sends this status message.
(The data buffer contains t he i nformation field of the
FRMR that LAP-B would send.)
70 ST25RXFR Reset/Disc. due to received FRMR
A frame reject response was received. A copy of the
received FRMR’s information field is in the data buffer
of the unsolicited status message.
71 ST25RXDM Reset/Disc. due to received DM
The protocol received a Disconnected Mode response.
72 ST25RXSA Reset/Disc. due to recvd SABM/SABME
A Set Asynchronous Ba lance d Mode (or SABME)
command was received by the protocol.
73 ST25RXDI Reset/Disc. due to received DISC
The protocol received a DISConnect command.
74 ST25RXUA Reset/Disc. due to received UA
An Unnumbered Acknowledgment response was
received by the protocol when the protocol had not
solicited a UA.
75 ST25RUFR Reset/Disc. due to unsol final resp
The protocol received a response with the Final bit set
which had not been solicited by the transmission of a
command with the Poll bit set.