Allowable Sequence of TPI Primitives

The following tables describe the possible events that may occur on the interface and the possible states as viewed by the transport user that the interface may enter due to an event. The events map directly to the transport service interface primitives as described in ``How TPI Works''.

Possible States
State	Abbreviation	Description	Service Type
sta_0	unbnd	unbound	T_COTS, T_COTS_ORD,
			T_CLTS
sta_1	w_ack b_req	awaiting acknowledgment	T_COTS, T_COTS_ORD,
		of T_BIND_REQ	T_CLTS
sta_2	w_ack u_req	awaiting acknowledgment	T_COTS, T_COTS_ORD,
		of T_UNBIND_REQ	T_CLTS
sta_3	idle	idle - no connection	T_COTS, T_COTS_ORD,
			T_CLTS
sta_4	w_ack op_req	awaiting acknowledgment	T_COTS, T_COTS_ORD,
		of T_OPTMGMT_REQ	T_CLTS
sta_5	w_ack c_req	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_CONN_REQ
sta_6	w_con c_req	awaiting confirmation	T_COTS, T_COTS_ORD
		of T_CONN_REQ
sta_7	w_res c_ind	awaiting response	T_COTS, T_COTS_ORD
		of T_CONN_IND
sta_8	w_ack c_res	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_CONN_RES
sta_9	data_t	data transfer	T_COTS, T_COTS_ORD
sta_10	w_ind or_rel	awaiting T_ORDREL_IND	T_COTS_ORD
sta_11	w_req or_rel	awaiting T_ORDREL_REQ	T_COTS_ORD
sta_12	w_ack dreq6	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_DISCON_REQ
sta_13	w_ack dreq7	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_DISCON_REQ
sta_14	w_ack dreq9	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_DISCON_REQ
sta_15	w_ack dreq10	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_DISCON_REQ
sta_16	w_ack dreq11	awaiting acknowledgment	T_COTS, T_COTS_ORD
		of T_DISCON_REQ

Kernel Level Transport Interface States