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Method and device for Layer 2 intercommunication of heterogeneous networks

A heterogeneous network and network technology, applied in the field of communication, can solve the problem that the two-layer network cannot directly communicate with each other.

Active Publication Date: 2016-06-08
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, different types of Layer 2 networks such as PBB networks and VPLS cannot directly communicate with each other.

Method used

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  • Method and device for Layer 2 intercommunication of heterogeneous networks
  • Method and device for Layer 2 intercommunication of heterogeneous networks
  • Method and device for Layer 2 intercommunication of heterogeneous networks

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Embodiment Construction

[0022] The following describes the embodiments of the present invention by taking a group of four types of networks, including PBB access, VPLS access, TRILL access, and SPB access, that need to communicate with each other as an example.

[0023] In order to describe the embodiment of the present invention more clearly, the concept of "broadcast domain" is introduced, and at least two heterogeneous network accesses can be mapped to the same broadcast domain. Messages in a broadcast domain can be directly forwarded at Layer 2 according to the destination address of the message, that is, the broadcast domain defines the scope of Layer 2 intercommunication. The embodiment of the present invention allows multiple broadcast domains to coexist, and different broadcast domains cannot communicate with each other at Layer 2. In the embodiment of the present invention, a broadcast domain identifier (broadcast domain ID) is used to uniquely identify a broadcast domain.

[0024] In order...

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Abstract

The present invention discloses a method and equipment for layer two intercommunication of heterogeneous networks. In the method, at least two heterogeneous network accesses are mapped to the same broadcast domain. And the corresponding interface is mapped to the corresponding access point, and the corresponding mapping rule is configured; the forwarding device queries the mapping rule when generating the forwarding entry based on the MAC address, and obtains the corresponding access point of the received message , add the access point to the outgoing interface list of the corresponding forwarding entry; when the forwarding device receives the user data message, it queries the corresponding forwarding table according to the destination MAC address, and according to the access point in the outgoing interface list of the corresponding forwarding entry point, query the mapping rules to obtain the corresponding access type, encapsulation information, and outbound interface, and then encapsulate the user data packet according to the access type and encapsulation information, and forward it from the queried outbound interface. The two-layer intercommunication of heterogeneous networks can be realized by adopting the invention.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and equipment for Layer 2 intercommunication of heterogeneous networks. Background technique [0002] With the development of Internet technology, a variety of two-layer bearer technologies have emerged in the carrier network and data center network, such as VPLS (VirtualPrivateLANService, a type of virtual local area network service, a type of L2VPN) and PBB (ProviderBackboneBridging, Carrier backbone bridge, also known as MAC-IN-MAC, a carrier technology) technology, data center network TRILL (TRanparent Interconnection of Lots of Links, multi-link transparent interconnection protocol, a protocol that supports Layer 2 multi-path forwarding ) and SPB (ShortestPathBridging, the shortest path bridging protocol, a protocol that supports Layer 2 multipath forwarding) technology. Due to the need for multi-site and heterogeneous network interconnection, the interconnection ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/46H04L12/18H04L29/12H04L45/74
Inventor 王锋彭剑远
Owner XINHUASAN INFORMATION TECH CO LTD