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Traffic forwarding method for multicast VPN network, PE (Provider Edge) and multicast VPN network

A traffic forwarding and network technology, applied in the field of communication

Active Publication Date: 2019-03-15
重庆中兴软件有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the MOFRR scheme will cause a large amount of redundant traffic in the network

Method used

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  • Traffic forwarding method for multicast VPN network, PE (Provider Edge) and multicast VPN network
  • Traffic forwarding method for multicast VPN network, PE (Provider Edge) and multicast VPN network
  • Traffic forwarding method for multicast VPN network, PE (Provider Edge) and multicast VPN network

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Embodiment Construction

[0083] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0084] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The invention provides a traffic forwarding method for a multicast VPN network, a PE (Provider Edge) and a multicast VPN network. The traffic forwarding method for the multicast VPN network comprisesthe following steps: receiving join routing information sent by a downstream service provider edge (PE); and a second upstream PE determining itself as alternate path equipment according to the join routing information, and configuring itself as a state not to forward traffic. According to the traffic forwarding method for the multicast VPN network provided by the embodiment of the invention, through the join routing information, a first upstream PE and the second upstream PE can respectively determine itself as primary path equipment and the alternate path equipment according to the join routing information, and the primary path equipment forwards the traffic, and the alternate path equipment does not forward the traffic, so that bandwidth resources of a public network are not consumed, and no redundant traffic occurs.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a traffic forwarding method of a multicast VPN network, a PE and a multicast VPN network. Background technique [0002] With the development of multicast VPN technology, the technical solution of establishing a public network multicast VPN tunnel and private network route notification through MPLS / BGP is gradually being used. Among them, because the PE node is the head node and the tail node of the tunnel, there are more message exchanges and protocol calculations. After the node is powered off, the route reconvergence will be slower than the traditional IP multicast. [0003] Related IP multicast generally uses the MOFRR (Multicast-Only Fast Reroute) scheme for fast path switching. The basic idea is to divert traffic to downstream nodes on the primary and secondary paths, and the downstream node selects one of the primary paths for traffic forwarding. When the primary pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/707H04L12/721H04L12/761H04L12/46H04L45/24H04L45/16
CPCH04L12/4641H04L45/16H04L45/22H04L45/38
Inventor 徐本崇纪小利方昌奇
Owner 重庆中兴软件有限责任公司
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