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NAT gateway disaster recovery implementation method and system thereof

A technology for implementing systems and methods, applied in transmission systems, digital transmission systems, network interconnections, etc., can solve problems such as waste of equipment bandwidth, waste of idle equipment, and complicated VRRP deployment methods

Active Publication Date: 2020-07-10
GUANGDONG EFLYCLOUD COMPUTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has obvious disadvantages: first, the VRRP deployment method is complicated and difficult to manage, and only the master device is working in VRRP, so that idle devices are wasted; second, the active synchronization of sessions cannot guarantee that the other The device will not receive the message of this session until the synchronization session is successful, and the active synchronization method wastes the bandwidth of the device, consumes the performance of the device, and also increases the complexity of the deployment of the device

Method used

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  • NAT gateway disaster recovery implementation method and system thereof
  • NAT gateway disaster recovery implementation method and system thereof

Examples

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example 1

[0051] like figure 1 As shown, the present embodiment provides a NAT gateway disaster recovery implementation system, which mainly includes a computing virtualization resource pool, a switch, an LACP convergence module, a synchronization module, a NAT device module and a public network gateway module, and the NAT device module includes NAT equipment D1 and NAT equipment D2, wherein NAT equipment D1 and NAT equipment D2 belong to the equipment of the same specification (performance and function are consistent); The computing virtualization resource pool, switch, NAT equipment D1 and public network gateway module are connected in sequence; The computing virtualization resource pool, the switch, the NAT device D2 and the public network gateway module are connected sequentially; the LACP convergence module is connected to the NAT device D1, the NAT device D2 and the switch; the synchronization module is connected to the NAT device D1 and the NAT device D2;

[0052]The computing v...

Embodiment 1

[0077] like figure 2 As shown, the present embodiment provides a NAT gateway disaster recovery implementation method based on a NAT gateway disaster recovery implementation system in Embodiment 1, and the specific method steps are:

[0078] S11, the LACP aggregation module controls the link aggregation control LACP protocol between the NAT equipment D1 and the switch to realize the aggregation of message traffic; and the LACP aggregation module controls the link aggregation control LACP protocol between the NAT equipment D2 and the switch, It is used to realize the aggregation of message traffic; among them, both NAT device D1 and NAT device D2 use the same MAC address and operation KEY to establish LACP aggregation with the switch, so that the switch, NAT device D1 and NAT device D2 form the same aggregation group In, to achieve cross-device convergence

[0079] S12, the synchronization module establishes the BFD detection between the NAT equipment D1 and the NAT equipment ...

Embodiment 3

[0094] This embodiment provides a specific gateway disaster recovery implementation method example on the basis of a method for implementing NAT gateway disaster recovery in Embodiment 2, as follows:

[0095] Example: Suppose vm1 visits baidu.com

[0096] 1. The virtual machine vm1 sends a syn message to baidu.com;

[0097]2. Assuming that the left NAT device D1 receives this message, it will create a new session identifier when passing through the NAT module, and redirect the syn message to the right NAT device D2 through the vxlan tunnel;

[0098] 3. The right NAT device D2 receives the syn message from the vxlan tunnel, and forwards it directly from the network port em3 to the public network gateway;

[0099] 4. Subsequent communication messages between the virtual machine vm1 and baidu.com in this connection, whether they are received by the left NAT device D1 or the right NAT device D2, will be processed by the NAT module and then sent to the network of the own NAT devic...

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Abstract

The invention discloses an NAT gateway disaster recovery implementation method and a system thereof. The system comprises a computing virtualization resource pool, a switch, an LACP convergence module, a synchronization module, an NAT device module and a public network gateway module, and the NAT device module comprises an NAT device D1 and an NAT device D2. The method comprises: calculating message flow sent and received by the virtualization resource pool, realizing message flow convergence of the NAT device D1 and the NAT device D2 by the LACP convergence module, and establishing a VxLAN tunnel between the NAT device D1 and the NAT device D2 by the synchronization module; both the NAT device D1 and the NAT device D2 forwarding the message flow of the switch to the public network gatewaymodule, or forwarding the message flow of the public network gateway module to the switch; and when each address link is connected for the first time, the NAT device D1 and the NAT device D2 newly establishing a session identifier, and redirecting and transmitting a newly connected first message between the NAT device D1 and the NAT device D2 through the VxLAN tunnel. According to the invention,all messages can be ensured to find correct sessions, the efficiency and accuracy are ensured, and the equipment deployment is simplified.

Description

technical field [0001] The invention relates to the technical field of NAT gateways in cloud computing, in particular to a NAT gateway disaster backup implementation method and a system thereof. Background technique [0002] Nowadays, with the popularity of the Internet and the wave of cloud computing, people are increasingly inseparable from the network environment. With the rapid development of the mobile Internet, various applications and services emerge in an endless stream. Application developers and service providers need to quickly implement their projects or products. In traditional IDC data centers, they generally need to deploy their own server equipment or Renting other people's server equipment and building a complex network by yourself will definitely take a lot of time, manpower, and material resources, and it will be very error-prone during deployment, and it is not easy to expand and achieve disaster recovery. [0003] In the classic network, users actually ...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/46H04L12/741H04L29/12H04L45/74
CPCH04L41/0668H04L12/4641H04L12/4633H04L45/74H04L61/25Y02D30/50
Inventor 梁润强史伟闵宇李卢群
Owner GUANGDONG EFLYCLOUD COMPUTING CO LTD
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