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CGN backup method and device

A backup and backup path technology, applied in the field of communications, can solve problems such as increasing network maintenance costs, and achieve the effect of saving network maintenance costs

Active Publication Date: 2021-10-15
NEW H3C SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned CGN backup method, the administrator needs to deploy routing strategies on all the devices that the data packets pass through, which leads to the need to configure a large number of routing strategies, and when it is necessary to modify or add routing strategies , must be reconfigured, thereby increasing network maintenance costs

Method used

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  • CGN backup method and device

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Embodiment Construction

[0031] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0032] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a CGN backup method and device, the method is applied to BRAS equipment, and the method comprises the following steps: when a data message from user equipment is received and a main CGN board card on the BRAS equipment is determined to have a fault, according to a received SRv6 backup path generated based on a BGP route issued by at least one centralized backup equipment provided with a standby CGN board card, and according to a first instance identifier of a first NAT instance corresponding to a user group to which the user equipment belongs, determining an SRv6 backup path which needs to forward the data message; and encapsulating an IPv6 header and a segment route header SRH for the data message based on the determined SRv6 backup path to obtain an SRv6 message, sending the SRv6 message to a tail node on the determined SRv6 backup path, and performing related NAT conversion operation on the data message by a standby CGN board card in the tail node. The network maintenance cost can be saved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a CGN backup method and device. Background technique [0002] At present, in a network where carrier-grade network address translation (Carrier Grade NAT (Network Address Translation, Network Address Translation), CGN) equipment is deployed in a distributed manner, the broadband remote access server (Broadband Remote Access Server, BRAS CGN board card is set on the equipment, and by this CGN card, the source private network Internet Protocol (Internet Protocol, IP) address of the data message from the user equipment is carried out NAT conversion operation, that is, converted into a public network IP address, so that the user The device can access the network. [0003] In order to further improve the network reliability of the above-mentioned network, a centralized backup device equipped with a CGN board is usually deployed in the above-mentioned network. In ...

Claims

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Application Information

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IPC IPC(8): H04L12/711H04L12/707H04L12/721H04L12/741H04L12/28H04L29/12G06F11/14H04L45/247H04L45/24H04L45/74
CPCH04L45/22H04L45/28H04L45/44H04L45/74H04L61/2503H04L12/2876G06F11/1448
Inventor 叶冲汪亮陈健
Owner NEW H3C SECURITY TECH CO LTD
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