void __update_ntt (struct lacpdu * lacpdu, struct port * port);
Updates the value of the ntt variable, using parameter values from a newly received lacpdu. The parameter values for the partner carried in the received PDU are compared with the corresponding operational parameter values for the Actor. If one or more of the comparisons shows that the value(s) received in the PDU differ from the current operational values, then ntt is set to TRUE. Otherwise, ntt remains unchanged.