Gateway disaster recovery method and device and memory medium

[0042] Example one

[0043] This embodiment will be described from the perspective of a gateway disaster tolerance device. The gateway disaster tolerance device is specifically a gateway device in a gateway device cluster. The gateway device may be a device that provides a gateway function, such as a server that provides a gateway function.

[0044] A gateway disaster recovery method, applicable to gateway devices in a gateway device cluster, includes: sending heartbeat packets to other gateway devices and switches in the gateway device cluster, and receiving heartbeat packets sent by the other gateway devices, when in a preset time period When the heartbeat packet sent by the other gateway device is not received, it is determined that the other gateway device is faulty, the first network egress address configured on the other gateway device is obtained, and the first network egress address is assigned to the gateway device cluster The normal gateway device takes over.

[0045] Such as

[0099] Embodiment two

[0100] According to the method described in the first embodiment, further detailed description will be given below.

[0101] Such as Figure 2a As shown, this embodiment provides a network data interaction system, which includes: a gateway device cluster, a first network switch, and a second network switch; wherein the gateway device cluster includes multiple gateway devices, and the gateway device can provide a gateway device For functional devices, such as a server (LD) that provides a NAT gateway function, the gateway device cluster is connected to a first network switch through a first network, and is connected to a second network switch through a second network.

[0102] The following will be based on Figure 2a The shown network data interaction system will further describe the gateway disaster recovery method of the present invention.

[0103] Such as Figure 2b As shown, a gateway disaster recovery method, the specific process can be as follows:

[0104] 20

[0149] Embodiment three

[0150] In order to better implement the above method, the embodiment of the present invention also provides a gateway disaster tolerance device, which is suitable for gateway devices in a gateway device cluster, such as Figure 3a As shown, the gateway disaster recovery device includes: a heartbeat sending unit 301, a heartbeat receiving unit 302, a fault determination unit 303, an address acquisition unit 304, and an allocation unit 305, as follows:

[0151] (1) Heartbeat sending unit 301;

[0152] The heartbeat sending unit 301 is used to send heartbeat packets to other gateway devices and switches in the gateway device cluster.

[0153] In this embodiment, the gateway device may include a device that provides a NAT (Network Address Translation, network address translation) gateway function, for example, an LD (a server that provides a NAT gateway function).

[0154] Among them, the way of sending the heartbeat packet may include multicast sending, for example,