At&t Intellectual Property I, L.p.

Eric Puetz

Yetik Serbest

Wenge Chen

Stephanie Karasick

Guangtian Liu

Yetfk Serbest

A method for delivering targeted advertisement data to opt-in subscribers in an internet protocol television (IPTV) system is disclosed, the system comprising selecting an advertising target group of opt-in IPTV subscribers based on an advertiser's advertising target request; and multicasting an advertisement from an IPTV advertising server to the advertising target group. A system for performing the method is disclosed.

System and method for distributing advertisements in an internet protocol television system

A system and method of routing data packets is disclosed. In a particular embodiment, the method includes receiving a first Internet Protocol (IP) data packet at a first access port of an access line card within a data router. The method also includes transmitting the first IP data packet from the first access port to a network line card within the data router, via a first trunk port of the access line card. The first access port is coupled to the first trunk port and not coupled to at least one other access port. The method further includes receiving a second IP data packet at a second trunk port of the access line card from the network line card. In addition, the method includes transmitting the second IP data packet from the second trunk port to a second access port of the access line card.

System and method of routing data packets using trunk ports and access ports

A telecommunication system comprises a first plurality of virtual circuit label switched paths (VC-LSPs) dedicated to communicate broadcast and unknown frames. The known frames have an encapsulated source site identifier used for media access control (MAC) address learning.

MAC learning using VC-LSP dedicated for broadcast and unknown frames

The present invention provides a method for distributing Internet Protocol Television (IPTV) content over a national IP backbone using GRE tunneling in a point-to-point ring topology. A logical path is defined that connects multiple hub offices, each including at least two routers, in a ring network topology. Generic Routing Encapsulation (GRE) tunnels are used over an existing Internet Protocol (IP) backbone to establish connectivity between adjacent hub offices. A direction for content flow is defined. The direction of flow may be determined by selecting a designated router. The routers of the hub offices selectively join to upstream routers. This direction may be reversed by changing the direction of in which routers join. IPTV content is distributed over the defined path using the GRE tunnels. The necessity of forwarding the content is determined at each hub office.

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Georgetown, TX, United States of America

Eric Puetz