Abstract: A system includes a broadcast overlay network including a ring topology. The ring topology includes a first network ring and a second network ring that is coupled to the first network ring via at least one cross-connect element. The ring topology is adapted to carry broadcast traffic from a network. The system also includes a digital subscriber line access multiplexer (DSLAM) having a line interface and a network interface. The network interface is in communication with the broadcast overlay network via the second network ring. The DSLAM is adapted to receive a request for a particular video channel from a customer premise via the line interface and to deliver the particular video channel from the network interface to the line interface.

Abstract: Communications traffic in a network is addressed. An original signal comprising an embedded destination service address is receiving at an ingress capable network device of the network. A database server is queried to obtain an internal routing address corresponding to the embedded destination service address. A transit signal corresponding to the original signal and including at least the embedded destination service address is routed through the network to an egress capable network device of the network according to the internal routing address. The transit signal enables the egress capable network device to restore the embedded destination service address and to forward the transit signal from the network.

Abstract: Communications traffic in a network is addressed. An original signal comprising an embedded destination service address is receiving at an ingress capable network device of the network. A database server is queried to obtain an internal routing address corresponding to the embedded destination service address. A transit signal corresponding to the original signal and including at least the embedded destination service address is routed through the network to an egress capable network device of the network according to the internal routing address. The transit signal enables the egress capable network device to restore the embedded destination service address and to forward the transit signal from the network.

Abstract: A computer readable medium stores a program in an ingress capable network device of a network for routing signals through the network. The computer readable includes a receiving code segment for receiving an original signal, which has an embedded destination service address. The computer readable medium also includes a querying code segment for querying a database server to obtain an internal routing address corresponding to the embedded destination service address, and a routing code segment for routing at least a portion of the original signal through the network to an egress capable network device according to the internal routing address. The routed portion of the original signal includes at least the embedded destination service address, which enables the egress capable network device to restore the embedded destination service address and to forward the routed portion of the original signal from the network.

Abstract: A broadcast overlay network has a ring topology to carry broadcast traffic from a head-end network. A digital subscriber line access multiplexer (DSLAM) has a network interface in communication with the broadcast overlay network. The DSLAM is to receive a request for a particular video channel from a customer premise via a line interface and to deliver the particular video channel from the network interface to the line interface.

Abstract: A system operable among compatible public networks, such as ATM networks, recognizes signals having external service addresses entering a controlled compatible public network. External service addresses are checked against a look-up of internal routing addresses that are generally only recognized and/or advertised within the controlled compatible public network, and that represent egress terminating interfaces. The external service address is replaced with the internal routing address, although the external service address is retained and transported. Routing to the egress terminating interface in the controlled compatible network is performed on the internal routing address only, without reference to the external service address. At the egress terminating interface, the internal routing address is discarded, and the external service address restored, as the signals are forwarded to the next entity, which is usually a connected compatible network or end system.

Abstract: A broadcast overlay network has a ring topology to carry broadcast traffic from a head-end network. A digital subscriber line access multiplexer (DSLAM) has a network interface in communication with the broadcast overlay network. The DSLAM is to receive a request for a particular video channel from a customer premise via a line interface and to deliver the particular video channel from the network interface to the line interface.

Abstract: A system operable among compatible public networks, such as ATM networks, recognizes signals having external service addresses entering a controlled compatible public network. External service addresses are checked against a look-up of internal routing addresses that are generally only recognized and/or advertised within the controlled compatible public network, and that represent egress terminating interfaces. The external service address is replaced with the internal routing address, although the external service address is retained and transported. Routing to the egress terminating interface in the controlled compatible network is performed on the internal routing address only, without reference to the external service address. At the egress terminating interface, the internal routing address is discarded, and the external service address restored, as the signals are forwarded to the next entity, which is usually a connected compatible network or end system.