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Method for extending MPLS VPN access through public network and PE equipment

A public network and equipment technology, applied in the field of network communication, can solve the problems of increasing message transmission delay and affecting message forwarding rate, etc., and achieve the effect of reducing transmission delay and increasing forwarding rate

Inactive Publication Date: 2011-06-01
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is not difficult to see from the above process that when a message is transmitted between the public network and the MPLS VPN network, the message is transmitted on the edge device of the MPLS VPN network (such as figure 2 In PE3) at least one AC physical link and two physical interfaces need to go through, which will inevitably affect the packet forwarding rate and increase the packet transmission delay

Method used

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  • Method for extending MPLS VPN access through public network and PE equipment
  • Method for extending MPLS VPN access through public network and PE equipment
  • Method for extending MPLS VPN access through public network and PE equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0043] This embodiment uses the L2TPv3 protocol to extend MPLS VPN access, such as Figure 4 It is a flow chart of a method for extending MPLS VPN access using the L2TPv3 protocol in Embodiment 1 of the present invention, and the process includes the following steps:

[0044] Step 401: Create a virtual interface on the MPLS network-side PE device, associate the virtual interface with the corresponding VRF, and configure an IP address, which needs to be the same as the IP address of the CE device connected to the peer access network-side PE device Configure it on the same network segment, and configure the same link layer encapsulation protocol on the virtual interface as that of the PE device on the access network at the opposite end;

[0045] Step 402: Bind the corresponding PW on the virtual interface. This process is first completed through the negotiation of the L2TPv3 control protocol. It is necessary to configure the same virtual link ID (VC ID) and link Layer encapsul...

Embodiment 2

[0052] This embodiment adopts the Virtual Private Wire Service (VPWS, Virtual Private Wire Service) protocol to extend MPLS VPN access, such as Figure 5 It is a flow chart of a method for extending MPLS VPN access using the VPWS protocol in Embodiment 2 of the present invention, and the process includes the following steps:

[0053] Step 501: Create a virtual interface on the MPLS network-side PE device, associate the virtual interface with the corresponding VRF, and configure an IP address. This IP address needs to be the same as the IP address of the CE device connected to the peer access network-side PE device Configure it on the same network segment, and configure the same link layer encapsulation protocol on the virtual interface as that of the PE device on the access network at the opposite end;

[0054] Step 502: Bind the corresponding PW on the virtual interface. This process is first completed by VPWS using the LDP protocol negotiation. It is necessary to configure ...

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Abstract

The invention provides a method for extending multi-protocol label switching (MPLS) virtual private network (VPN) access through a public network and provider edge (PE) equipment. The method is applied to the public network comprising MPLS network PE equipment and access network PE equipment. The method comprises the following steps of: creating a virtual interface on the MPLS network PE equipment, associating corresponding virtual routing forward (VRF) for the virtual interface, and configuring an internet protocol (IP) address; and configuring the same encapsulation protocol as the access network PE equipment on the virtual interface, establishing a pseudo wire (PW) between the MPLS network PE equipment and the access network PE equipment by using the public network, and binding the virtual interface and the PW. The method can improve the forwarding velocity of the message and reduce the transmission time delay of the message.

Description

technical field [0001] The present invention relates to the field of network communication, in particular to a method for extending Multi-protocol Label Switching (MPLS, Multi-protocol Label Switching) virtual private network (VPN, Virtual Private Network) access through a public network and a provider edge (PE, Provider Edge )equipment. Background technique [0002] With the explosive growth of the Internet and the rapid development of e-commerce, people began to consider how to securely transmit data on the insecure Internet, so VPN technology was created, which builds a private network on a public A private network interconnected by multiple private LANs. According to the types of public network protocols, VPNs may be based on MPLS networks or VPNs based on IP access networks; according to the types of bearer packets, VPNs are divided into Layer 2 VPNs (L2 VPN, Layer 2 VPN) There are two types of Layer 3 VPN (L3 VPN, Layer 3 VPN). The VPN carrying Layer 2 link packets b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/12H04L45/50
Inventor 谯良刚徐海兵刘高锦
Owner MAIPU COMM TECH CO LTD
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