Method for establishing remote access virtual private network connection and local access concentrator

A virtual private network and access concentrator technology, which is applied in the field of network communication, can solve problems such as reducing the utilization rate of network resources, achieve the effect of balancing processing burden and improving utilization rate

Inactive Publication Date: 2011-05-11
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] It can be seen that in the above method of establishing an Access VPN connection, if the active LNS is available, when all remote users access the intranet, the LAC will establish a tunnel connection with the active LNS, and the active LNS will provide intranet access services for all remote users. , obviously this will cause the processing burden of the active LNS, the remote user access service quality will be affected by the processing performance of the active LNS and the bandwidth between the LAC and the active LNS, and reduce the utilization of network resources

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  • Method for establishing remote access virtual private network connection and local access concentrator
  • Method for establishing remote access virtual private network connection and local access concentrator
  • Method for establishing remote access virtual private network connection and local access concentrator

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] The method provided by the present invention mainly includes: when the LAC determines that a legal remote user needs to access the intranet, determine the tunnel connection priority of each LNS according to the link quality between the LNS connected to the LAC and the LAC, and select the tunnel connection priority The LNS with the highest level establishes a tunnel connection with the LAC, and the LNS with the highest priority of the tunnel connection provides the remote user with the Intranet access service.

[0019] When the LAC selects the LNS for establishing a tunnel connection, the link quality between the LAC and the LNS usually needs to be considered first, such as traffic conditions, which can be reflected by bandwidth and actual ba...

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Abstract

The invention provides a method for establishing remote access virtual private network (Access VPN) connection and a local access concentrator (LAC). The method comprises that: when determining that a legal remote user needs to access an Intranet, the LAC determines tunnel connection priority of each layer two tunneling network server (LNS) according to the quality of a link between each LNS and the LAC, an LNS with the highest tunnel connection priority is selected to establish tunnel connection with the LAC, and the LNS with the highest tunnel connection priority provides access service of the Intranet for a remote user. The load sharing among LNS is realized, and the access quality of service of the remote user and the utilization rate of network sources are improved.

Description

technical field [0001] The invention relates to network communication technology, in particular to a method for establishing a remote access virtual private network (Access VPN) connection and an access concentrator (LAC). Background technique [0002] Virtual private network (VPN) is a new technology developed rapidly with the wide application of the Internet this year, and is used to realize the construction of a private private network on a shared network. Layer Two Tunneling Protocol (L2TP, Layer Two Tunneling Protocol) VPN is a remote access virtual private network (Access VPN). Private Internet connection. [0003] There are two types of Access VPN connections, one is the Access VPN connection initiated by the user, and the other is the Access VPN connection initiated by the access server. Among them, the Access VPN connection initiated by the user can be as follows: figure 1 As shown, a remote user accesses the access concentrator (LAC) of the network access server...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/56H04L29/06
Inventor 刘洋徐庆伟
Owner NEW H3C TECH CO LTD
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