Communication method and system between mixed network VPN stations across different autonomous systems

An autonomous system and hybrid network technology, applied in the field of network communication, can solve problems such as no specific solutions proposed

Inactive Publication Date: 2006-11-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] The above-mentioned solution to realize the communication between the hosts in the pure IPv6 network and the hosts in the pure IPv4 netw

Method used

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  • Communication method and system between mixed network VPN stations across different autonomous systems
  • Communication method and system between mixed network VPN stations across different autonomous systems
  • Communication method and system between mixed network VPN stations across different autonomous systems

Examples

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Embodiment Construction

[0075] The implementation method of the present invention will be described in detail below from two aspects of communication between VPN sites of the same type and communication between sites of different types in conjunction with the accompanying drawings. Each aspect will be described in detail by taking two processes of VPN route notification and VPN service data forwarding, that is, control flow forwarding and service flow forwarding, as examples.

[0076] (1) Communication between VPN sites of the same type

[0077] by image 3 The network topology shown is taken as an example, and the intercommunication between VPN sites of the same kind in this solution will be described in detail.

[0078] exist image 3 In the shown network, the MPLS backbone network AS10 provides BGP / MPLS VPN services for AS100 and AS200, where AS100 belongs to VPN A and AS200 belongs to VPN B; AS100 and AS200 provide BGP for user sites 1, 2, 3 and 4 / MPLSVPN service, where site 1 and site 3 belo...

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Abstract

The invention is concerned with the communicating method and the communicating system between the mix virtual private networks (VPN) of the different autonomous system, it is: setup the route reflector respectively in the autonomous system of the superior VPN provider's station that relative to the lower lever VPN user when setups the route reflector, the relay, the transmitting VPN route and the operating stream, and setup corresponding Ipv4/v6 VRF for the lower level VPN station in every route reflector of the autonomous system; achieve the BGP/MPLS VPN network communication between the same-kind network and the different-kind network of the IPv4/v6 mix network which belongs to the different autonomous system of Carrier's carrier, by the two processes that are the VPN route circular and the VPN service data transmission.

Description

technical field [0001] The present invention relates to the technical field of network communication, and in particular to a communication method between mixed network VPN sites across different autonomous systems and Internet protocol version 4 / Internet protocol version 6 (IPv4 / v6 ) BGP / MPLS VPN communication system of hybrid network. Background technique [0002] BGP / MPLS VPN refers to a three-layer VPN technology that uses Multi-Protocol Label Switching (MPLS) network as the bearer network and combines Border Gateway Protocol (BGP) to provide virtual private network (VPN) services. In BGP / MPLS VPN, a virtual routing forwarding table (VRF) is established for different VPNs in the provider border router to store VPN routes; the labeled VPN routes are transferred through the multi-protocol extended attributes of BGP to realize VPN routing notice. When the provider border router receives the VPN service flow, it can encapsulate the service flow into an MPLS packet and forwa...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/66
Inventor 张宏科郜帅李德丰谷志慧秦亚娟
Owner HUAWEI TECH CO LTD
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