Patent ID: 7710936
Filing Date: 2010-05-04
Classification: H04L

Abstract:
1. Universal Ethernet Telecommunications Service defines a new Layer-2 Ethernet-Only Communications Architecture, amenable for application to communication relating to voice telephone networks, local area networks, packet telephony, broadband services, data transmission via an electrical network and Internet, that extends an Ethernet local area network to infrastructure of telecom operators and service providers in an “Ethernet domain”, comprising: a) a Terminator of Universal Ethernet Network (TRUE) ( b) an extension of the Ethernet local area network to the infrastructure of telecom operators and the service providers in the “Ethernet domain”, by means of utilization of local MAC addresses, indicated with a U/L bit fixed to one, assigned to every physical interface in order to permit switching by hardware, along the entire path, with no frame modification and no need for routing tables, since the destination address are used as the routing information; c) a Terminal Universal Ethernet (TUE), comprising one of a specific device and software designed to run on a computer, and that will use protocols based in IEEE 802.2 LLC for transport in the Ethernet domain, and d) an exchange for the universal Ethernet Telecommunications Service ( wherein the extension of the Ethernet local network to the infrastructure of the telecom operators and services suppliers in the “Ethernet domain” ( 100 ), comprises: the distinction and isolation of the Ethernet domain, in which applications use IEEE 802.2 LLC protocols, and an IP domain ( the delivery of local broadband services to users in the Ethernet domain by means of connections set up with different types of LLC/MAC or TCP/IP protocol, in accordance with features of each class of traffic; the identification of the services in the Ethernet domain by means of a combination of the MAC 802.3 addresses and the LLC fields in order to apply congestion control mechanisms based on three priority levels; the use of two registers for six-octet MAC addresses, one of them not open to modification containing the universal MAC address, corresponding to a manufacturer of the equipment, and the other optional for the local MAC address configurable by software, which will permit identification of the equipment within the bounds of the Ethernet domain and application of flow control techniques based on prioritising traffic with the local MAC and type 2 LLC in respect of that of universal MAC and LLC in non-connected mode, applying mechanisms similar to those described in IETF RFC2581 for “TCP congestion control”, for which it will be necessary to add to the LLC protocol, the selective rejection of frames for performing the function equivalent to rapid retransmission by the TCP double ACK; connectivity with other networks to extend basic services, comprising connectively with Internet networks by means of the TCP/IP protocol stack, with MPLS networks for establishment of tunnels that interconnect different Ethernet domains and SDH transmission networks so as to establish digital circuits for carrying Ethernet frames, and the possibility that the infrastructure of one operator may support multiple service suppliers by means of VLAN techniques or by locally administered MAC addresses, indicated by the U/L bit fixed to 1, using Banyan, Benes, or Batcher switching matrices, which will route the MAC frames with local addresses, high priority ones, assigned to each physical interface so that the switching may be done by hardware, without need of tables.