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VPNV4 routing processing method and device based on nested VPN

A processing method and routing technology, applied in the field of communication

Active Publication Date: 2014-04-16
紫光恒越技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Embodiments of the present invention provide a VPNV4 route processing method and device based on a nested VPN network to solve the problems existing in the transmission of VPNV4 routes in a nested VPN network

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  • VPNV4 routing processing method and device based on nested VPN
  • VPNV4 routing processing method and device based on nested VPN
  • VPNV4 routing processing method and device based on nested VPN

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Embodiment Construction

[0038]In the prior art, when the RD information of a VPN instance of the operator's PE equipment and the user's PE equipment overlap, and when the IP routes overlap, the VPN cannot be distinguished due to the overlap of RD information, the embodiment of the present invention proposes a method based on A VPNV4 routing processing method for a nested VPN network, the method is applied to a nested VPN network including an operator's MPLS VPN network and a user's MPLS VPN network, and the operator's MPLS VPN network includes at least a first operator's PE device and a second Carrier PE equipment to Figure 1-Figure 3 It is a schematic diagram of an application scenario of the embodiment of the present invention, and the PE equipment of the first operator may be Provider PE1, and the PE equipment of the second operator may be Provider PE2.

[0039] Such as Figure 4 As shown, the VPNV4 route processing method includes the following steps:

[0040] Step 401, when the PE equipment o...

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Abstract

The invention discloses a VPNV4 routing processing method and device based on the nested VPN. The method comprises the steps that a PE device of a second operator receives a first VPNV4 route from a PE device of a first operator, an RD message carried in a second field of the first VPNV4 route is utilized for replacing an RD message carried in a first field of the first VPNV4 route, and a second field is deleted so that a second VPNV4 route can be obtained; the PE device of the second operator sends the second VPNV4 route to a user MPLSVP network. According to the VPNV4 routing processing method and device based on the nested VPN, the VPN can be distinguished, and the problem that the independence of private network routing is damaged is solved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a VPNV4 routing processing method and device based on a nested VPN (Virtual Private Network, virtual private network) network. Background technique [0002] In the MPLS (Multiprotocol Label Switching, multi-protocol label switching) L3VPN (Layer 3 Virtual Private Network, three-layer virtual private network) network, the MPLS VPN backbone network is operated by the operator, and through the PE (Provider Edge, backbone network edge) device Provides VPN services; among them, VPN users are interconnected with PE devices through CE (Customer Edge, user network edge) devices, and access the MPLS VPN network, so as to realize communication between different Sites (sites) belonging to the VPN. [0003] In actual networking, when VPN users need to further divide into multiple VPNs, a nested VPN solution is proposed, such as figure 1 Shown is a schematic diagram of a nes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L12/46H04L45/50
Inventor 田钧宇
Owner 紫光恒越技术有限公司