ABSTRACT
TTEthernet is intended as cross-industry communication infrastructure: originally designed according to aerospace standards, it is scalable in several directions. This chapter discusses two particular configurations of TTEthernet representing the extremes of the possible configuration space: a master-based configuration and a dual-fault-tolerant configuration. The chapter also introduces three roles in the synchronization algorithms of TTEthernet: the synchronization master (SM), the compression master (CM), and the synchronization client (SC). The TTEthernet start-up protocol is only executed between the SMs and the CMs. TTEthernet defines the term traffic class to differentiate communication modes. TTEthernet network configurations may differ with respect to the number of end systems and the number of switches, as well as their connecting topology. The TTEthernet switches allow communication of all traffic classes at line-rate communication speeds. TTEthernet is an integrative communication protocol capable of communicating frames of the three traffic classes on the same physical network.
