NBR_EVT_INIT_RCVD
nbr_fsm(nbr, NBR_EVT_INIT_RCVD);
{NBR_STA_INITIAL, NBR_EVT_INIT_RCVD, NBR_ACT_PASSIVE_INIT, NBR_STA_OPENREC},
{NBR_STA_OPENSENT, NBR_EVT_INIT_RCVD, NBR_ACT_KEEPALIVE_SEND, NBR_STA_OPENREC},