Description: Event X252.23 Lapb error. Error codes: 0x01 Receipt of an unsolicited supervisory frame (F=1) 0x02 Receipt of an unsolicited DM response frame (F=1) 0x03 Receipt of an unsolicited UA response (F=1) 0x04 Receipt of an unsolicited UA response (F=0) 0x05 Receipt of an unsolicited DM response (F=0) 0x06 Peer initiated link re-establishment 0x07 Retry limit reached N2 transmitting a SABM(E) command 0x08 Retry limit reached N2 transmitting a DISC command 0x09 Retry limit reached during status enquiry 0x0A Receipt of an I o S frame with a N(R) error 0x0B Receipt of a FRMR response 0x0C Receipt of an undefined o not inplemented control field 0x0D Receipt of an information field not permitted 0x0E Receipt of a frame with wrong size 0x0F Receipt of an I frame with N1 error 0x10 An I-frame was received with a N(S) sequence error 0x17 Unexpected Poll/Final bit 0x18 Received frame does not contain the whole LAPB header in the first buffer.