Method for implementing horizontal split

Abstract

The invention discloses a method for realizing split horizon. An entry sub-module of distribution-typed network equipment in the core network sends the entry attributes and the content of an unknown address data packet to a forwarding matrix sub-module of the distribution-typed network equipment, and the unknown address data packet is a data packet which is received from the interface connected with the equipment of other core networks; after the forwarding matrix sub-module receives the entry attributes and the content of the unknown address data packet, the entry attributes of the unknown address data packet is compared with the exit attributes of an exit sub-module of the distribution-typed network equipment, if the attributes are same, the content of the unknown address data packet is not forwarded to the exit sub-module; otherwise, the content of the unknown address data packet is forwarded to the exit sub-module. The invention reduces the times that the forwarding matrix sub-module copies and forwards the unknown address data packet and improves the data processing capability of the forwarding matrix sub-module.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method for realizing horizontal division. Background technique [0002] With the continuous development of the Internet and corporate intranets, the business demand for logically integrating scattered networks into a large private network is becoming increasingly strong. Therefore, Virtual Private Network (VPN) technology has emerged as the times require. Moreover, after continuous development, the VPN technology based on the third layer has gradually matured, but this technology has obvious shortcomings, that is, the operator needs to intervene in the customer's routing plan, and the customer cannot decide the network layer by itself, which makes network application and maintenance more difficult. difficulty. [0003] In order to solve the above problems, a Layer 2 VPN technology based on Multi-Protocol Label Switching (MPLS)-Virtual Private Local Area Network Service (VPLS)...

AI Technical Summary

Problems solved by technology

[0020] In the above method for realizing split horizon, the forwarding matrix submodule copies and forwards data packets for all the egress submodules of the core network PE to which it belongs, while the egress submodules connected to other core network PEs send the forwarding matrix submodule The data packets discarded, causing the forwarding matrix submodule to perform a large number of meaningless copying and forwarding operations, reducing its data processing capability, and wasting the bandwidth between the forwarding matrix submodule and the egress submodule, especially when such data When there are many packets, it will seriously affect the data forwarding performance of distributed network devices

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