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A connection establishment method and device

A connection establishment and connection establishment technology, applied in the field of communication, can solve problems such as the limited number of NAT resources, the inability to establish new connections, and the failure of connection establishment, so as to avoid failure to establish, improve user experience, and ensure normal use.

Active Publication Date: 2019-09-06
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the limited number of NAT resources, when the NAT resources are exhausted, new connections cannot be established, resulting in service interruption of new connections
For example, when a user starts P2P software, the P2P software will establish a large number of connections, and these connections will quickly consume NAT resources. When the NAT resources are exhausted, new connections (P2P connections or other application types) Connection) interrupted, connection establishment failed

Method used

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  • A connection establishment method and device
  • A connection establishment method and device
  • A connection establishment method and device

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Embodiment Construction

[0018] The terminology used in the present invention is for the purpose of describing particular embodiments only, rather than limiting the present invention. As used herein and in the claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0019] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from ...

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Abstract

The invention provides a connection establishing method and a connection establishing device. The connection establishing method includes: upon receiving of a connection establishing message, selecting an available NAT (network address translation) resource from a reserved resource pool if no available NAT resources exist in an allocation resource pool, and establishing a first connection for the connection establishing message by the NAT resource; after an application type corresponding to the first connection is recognized, confirming the priority of the application type; if the priority is not the minimum among all established connections until now, disconnecting a second connection corresponding the minimum priority, and recovering an NAT resource allocated to the second connection. The connection establishing method has the advantages that normal use of users' key services can be guaranteed, users' use experience is improved and NAT resource abuse is prevented.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a connection establishment method and device. Background technique [0002] NAT (Network Address Translation) is a process of converting an IP address in a packet header of an IP packet into another IP address, and is used to solve the problem of insufficient IP addresses. In practical applications, NAT can implement the function of internal network users accessing external public networks, and can also allow external public networks to access some internal network resources (such as internal servers). Since the public IP address converted by NAT is displayed on the external public network, the external public network does not know the IP addresses of internal network users / internal servers, so the NAT function can also ensure the security of internal network users / internal servers. [0003] The NAT configuration mode can include dynamic configuration mode ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/08
Inventor 易勇平
Owner NEW H3C TECH CO LTD
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