Architecture and provisioning tools for managed multicast virtual private LAN trees

A multicast tree, managed technology, applied in the direction of data exchange network, branch offices providing special services, data exchange details, etc., to achieve the effect of improving management performance

Inactive Publication Date: 2006-09-06
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Each membership change request specifies the channel

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  • Architecture and provisioning tools for managed multicast virtual private LAN trees
  • Architecture and provisioning tools for managed multicast virtual private LAN trees
  • Architecture and provisioning tools for managed multicast virtual private LAN trees

Examples

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Embodiment Construction

[0040] According to an exemplary embodiment of the present invention, there is provided a multicast connection provisioning method for reducing the time delay when establishing a new tree branch for a new member of a multicast group. Specifically, when providing high-bandwidth Internet TV broadcasting services, through image 3 The illustrated service provider network 300 distributes multi-channel video content from a super head-end source 304 to a plurality of distribution edge router network nodes 310-E. This proposal applies equally to implementations where multicast groups are defined: for each video content channel, for an aggregate of all video content channels, and for subgroups of video content channels. The availability of multi-channel content at distribution edge source router network node 310-E precludes the need to provision bandwidth across provider network 300 in real-time in response to each multicast group member's join request. Additionally, the availability...

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Abstract

Methods, tools, and a multicast connectivity architecture are provided for provisioning bundled high bandwidth multi-channel multimedia broadcast services over a packet switched communications network. Multicast group membership join / prune requests generated by the destination network nodes are processed on edge. Multicast tree connectivity in the core of the communications network is static and centrally provisioned based on multicast group member edge network nodes associated with subscribers, while dynamic multicasting techniques are employed over the distribution portion of the service provider's communications network to deliver requested content to each destination network node. The methods and tools compute multicast trees, configure on-tree branching network nodes, and establish Virtual Private LAN network overlays for channel bundles to convey multi-channel content in the core of the managed communications network between edge network nodes. Centralized multicast tree provisioning enables the use of efficient multicast tree topologies, while VPLS packet transport provides interoperability between disparate Layer-2 packet transport technologies employed in different portions of the communications network.

Description

technical field [0001] The present invention relates to high-bandwidth broadcast data communications, and more particularly to a packet-switched communications network architecture for distributing high-bandwidth audio / video content. Background technique [0002] The direction of development in the field of communications is towards the provision of television broadcasting services via data communications networks, especially packet-switched communications networks. This requires convergence between television content broadcasting technology and packet transmission technology. [0003] Current developments related to content broadcasting are mainly focused on the provision of low-bandwidth streaming services over packet-switched communication networks. These recent developments involve the efficient end-to-end transmission of lower bandwidth audio data streams between communication network nodes. For the purposes of the present description, the most notable development inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L12/56H04L29/06
CPCH04L12/185H04L45/16H04L45/48H04L12/1854H04L45/484
Inventor B·S·布-迪亚布B·拉赫米
Owner ALCATEL LUCENT SAS
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