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Method and device for establishing tunnel connection

A technology for establishing tunnels and access points, applied in the field of communication, can solve the problems of long network recovery time, affecting key applications of monitoring services, etc., and achieve the effect of maintaining stability

Inactive Publication Date: 2010-06-16
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] It can be seen that in the above cases, if the network encounters a failure and needs to be restored, that is, when the LWAPP tunnel and MESH LINK connection are re-established, it will take a long time to restore the entire network, which will affect key applications such as monitoring services

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  • Method and device for establishing tunnel connection
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  • Method and device for establishing tunnel connection

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Embodiment Construction

[0050] The present invention proposes a method for establishing a tunnel connection, which is applied to a network including an access controller AC and at least two access points AP. The AP is a dual-stack device, and can establish an LWAPP connection with the AC using the IPv4 protocol. An LWAPP connection can be established with the AC using the IPv6 protocol. Among them, at least two APs form an upstream and downstream relationship. In the present invention, two APs are taken as an example for illustration. Among them, the first AP is directly connected to the AC, and the upstream and downstream relationship is an upstream AP, and the second AP passes through the The first AP is connected to the AC, and is a downstream AP in an upstream-downstream relationship. The processing manner of multiple AP scenarios is the same as the processing manner of two APs, and will not be described in detail in the present invention. The method is as Figure 5 shown, including the followi...

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Abstract

The invention discloses a method for establishing tunnel connection, which comprises the following steps that: an access point (AP) acquires a position relationship between the AP and an access controller (AC); when the position relationship between the AP and the AC is that the AP is directly connected with the AC, the AP establishes a light weight access point protocol (LWAPP) connection with the AC to acquire an IP address of the AC; according to the IP address of the AC, an IP version number which is used for establishing the LWAPP connection is determined; and the IP version number is transmitted to the downstream AP. The method solves the problem that the restoration time of a full-link is too long under the condition of a multi-hop MESH connection.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for establishing a tunnel connection. Background technique [0002] At present, the wireless network has two modes: FAT (fat) AP (Access Point, access point) and AC (Access Controller, access controller) + FIT (thin) AP. Among them, AC + FIT AP is suitable for Large-scale deployment, has been more and more widely used. [0003] In the networking of AC+FIT AP mode, AC and FIT AP are connected through a proprietary protocol tunnel, and the related dedicated protocol is CAPWAP (Controlling and Provisioning of Wireless Access Point, wireless access point control and supply) , The CAPWAP protocol defines how to communicate between the AP and the AC, and provides a general encapsulation and transmission mechanism for realizing the interoperability between the AP and the AC. [0004] Such as figure 1 A schematic diagram of CAPWAP is shown, wherein CAPWAP nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04W76/02H04W80/04
Inventor 赵玄宁军
Owner NEW H3C TECH CO LTD