Access method and device of multiprotocol label switching double-layer virtual private network

A multi-protocol labeling and layer-2 virtualization technology, applied in the access field of MPLS L2VPN, can solve problems such as poor scalability and complex equipment, and achieve improved reliability, enhanced scalability, reduced management complexity and system development effect of difficulty

Active Publication Date: 2010-08-18
ZTE CORP
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method and device for accessing a multi-protocol label switching layer 2 virtual private network, by uniformly mapping multiple access types of user messages into a virtual port (Virtual Port), and then by The virtual port is connected to MPLS L2VPN, which solves the problems of poor access scalability and complex equipment in the current direct access to L2VPN

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  • Access method and device of multiprotocol label switching double-layer virtual private network
  • Access method and device of multiprotocol label switching double-layer virtual private network
  • Access method and device of multiprotocol label switching double-layer virtual private network

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] The main idea of ​​the present invention is: the user side and the network side respectively connect their respective packets to the operator's routing equipment, set the access type of the packets to be mapped to a virtual port, and assign a respective source port for each access respectively. Virtual SVP port and destination virtual DVP port; the user side and the network side establish a data forwarding channel of the multi-protocol label switching layer 2 virtual private network MPLS L2VPN by establishing a connection between their respective SVP ports and the other party's DVP port.

[0038] like figure 2 Shown, the flow chart of the present invention accessing MPLS L2VPN by virtual port comprises the following steps:

[0039] Step 210. The user side inserts the Layer 2 Ethernet message into the PE device, sets the access type of ...

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Abstract

The invention discloses an access method and a device of multiprotocol label switching double-layer virtual private network. The method comprises the following steps: a user side and a network side respectively access respective message into operator route equipment; the access type mapping of the message is a virtual port, and each access is distributed with respective SVP port and DVP port; and the user side and the network side build a data forwarding path of a multiprotocol label switching double-layer virtual private network by building the connection of respective SVP port to opposite side DVP port. The invention maps various access modes into the virtual port in a unified mode, and accesses MPLS L2VPN in and forwards on the basis of VSI and VP. The invention enhances the expandability for user messages to access into L2VPN, lowers L2VPN access management complexity and system development difficulty and improves system reliability.

Description

technical field [0001] The present invention relates to the field of network interconnection, and more specifically relates to an access method and device for an MPLS L2VPN (Multi-Protocol Label Switching Layer 2 Virtual Private Network). Background technique [0002] With the rapid development of the Internet, in order to meet the needs of different users and different types of business traffic to access IP networks, different networking technologies need to be used; Ethernet is widely used at present, but it is a local area network technology, but many large enterprises The branches of the company are distributed in different locations, which requires the use of a network technology to interconnect them together and ensure a certain degree of privacy. At present, MPLS L2VPN is generally used to complete. like figure 1 shown. The following takes the communication process of the message sent by CE1 (Customer Edge, user edge device) in the MPLS L2VPN network as an example ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/06H04L12/24H04L45/50
CPCH04L45/50H04L2012/4629H04L45/00
Inventor 张君辉
Owner ZTE CORP
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