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Cluster router multicast forwarding table designing and forwarding algorithm

A multicast forwarding table and router technology, which is applied in the field of computer networks, can solve problems such as unsuitable cluster routers, and achieve the effects of reducing redundant forwarding times, reducing forwarding delay, and high forwarding efficiency

Inactive Publication Date: 2015-05-13
CAPITAL NORMAL UNIVERSITY
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  • Summary
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  • Claims
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Problems solved by technology

[0005] In the cluster router, when multicast forwarding, it must first locate a specific distributed router in the cluster router, so there must be a corresponding "internal router identifier" field in the forwarding table item, but in the traditional multicast forwarding table There is no such field, so the traditional multicast forwarding table is not suitable for new cluster routers

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  • Cluster router multicast forwarding table designing and forwarding algorithm
  • Cluster router multicast forwarding table designing and forwarding algorithm
  • Cluster router multicast forwarding table designing and forwarding algorithm

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention discloses a cluster router multicast forwarding table designing and forwarding algorithm. The cluster router multicast forwarding table designing and forwarding algorithm comprises the steps of structuring a cluster router multicast forwarding table, wherein the steps include coding a plurality of distributed routers, and calculating the value of the field of an internal router, which is used for performing multicast forwarding; coding the line card of every distributed router, and calculating the value of the field of an outgoing line card used for performing the multicast forwarding; coding the interface of every line card, and calculating the value of the field of the outgoing interface used for performing the multicast forwarding; according to the value of the field of the internal router, the value of the field of the outgoing line card and the value of the field of the outgoing interface, generating the multicast forwarding table; according to the multicast forwarding table, performing three-stage multicast forwarding of multicast data packets. The cluster router multicast forwarding table designing and forwarding algorithm is applicable to cluster routers composed of multiple distributed routes and can reduce forwarding redundancy and forwarding time delay and achieve high forwarding efficiency.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a cluster router multicast forwarding table design and forwarding algorithm. Background technique [0002] With the widespread application of distributed routers, the current cluster routers can be composed of multiple distributed routers. And with the development of multimedia services such as remote video teaching, Internet TV, and video-on-demand, multicast technology is becoming increasingly important. At present, the industry has not clearly proposed a multicast forwarding table model under the cluster router. If the existing multicast forwarding table is applied in this new type of cluster router, storage redundancy will occur and the forwarding efficiency will be low. Therefore, it is necessary to design a new multicast forwarding table and a new multicast routing and forwarding algorithm suitable for new cluster routers. [0003] The existing multicast forwar...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L45/16
Inventor 陈文龙刘玉宝齐宏伟
Owner CAPITAL NORMAL UNIVERSITY
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