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Systems and methods for load balancing multicast traffic

A traffic and multicast group technology, applied in transmission systems, digital transmission systems, and devices that provide special services in branch offices, etc., and can solve problems such as inefficient use of data links

Active Publication Date: 2015-09-30
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, data link utilization can be inefficient because only a single path can be used to distribute traffic between any two switches

Method used

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  • Systems and methods for load balancing multicast traffic
  • Systems and methods for load balancing multicast traffic
  • Systems and methods for load balancing multicast traffic

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Embodiment Construction

[0018] The present disclosure is generally directed to systems and methods for load balancing multicast traffic using a multicast distribution tree across data links interconnecting a network of switches, such as those making up a Virtual Chassis fabric. Embodiments of the present disclosure may compute two or more multicast distribution trees rooted at a particular switch in the network, and may balance across two or more of these multicast distribution trees in Multicast traffic entering the network at any switch in the network.

[0019] As will be explained in more detail below, by load balancing multicast traffic across multiple multicast distribution trees, embodiments of the present disclosure can substantially improve data link utilization. For example, by generating a multicast distribution tree that can include paths to all switches in the network, embodiments of the present disclosure can forward multicast packets entering a switch from outside the network along any ...

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Abstract

A computer-implemented method for load balancing multicast traffic may include (1) identifying a plurality of switches that include at least a first switch that is connected to a second switch by a first path and a second path, (2) calculating a plurality of multicast distribution trees for distributing multicast traffic among the plurality of switches that includes (i) a first tree that includes the first path and whose root is different than the root of a second tree and (ii) the second tree that includes the second path, (3) receiving a plurality of multicast packets ingress to the plurality of switches at the first switch, and (4) using at least two of the plurality of multicast distribution trees to transmit the plurality of multicast packets from the first switch to the second switch. Various other methods, systems, and computer-readable media are also disclosed.

Description

technical field [0001] The present disclosure relates generally to load balancing, and more particularly, to systems and methods for load balancing multicast traffic. Background technique [0002] Conventional techniques for distributing multicast traffic within a layer-2 network generally rely on spanning tree protocols to prevent multicast packets from looping in the layer-2 network and flooding the layer-2 network. Unfortunately, despite successfully eliminating loops, spanning tree protocols can restrict multicast traffic to a single set of data links, which can cause redundant data links to go unused. [0003] Some techniques for distributing multicast traffic have attempted to distribute multicast traffic in a layer 2 network using more than one set of data links. For example, at least one technique can assign to each switch in a layer 2 network a set of data links that can include the shortest path from a switch to another switch in the layer 2 network; and can be U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/803H04L12/753H04L12/761H04L45/16H04L45/24
CPCH04L47/125H04L45/22H04L45/16H04L12/18H04L45/24H04L45/66H04L49/70H04L15/16
Inventor 吴强洪熙春
Owner JUMIPER NETWORKS INC
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