Huawei Technologies Co., Limited

Yonglong Fang

Liang Xia

Qi Yu

Bo Wu

Wei Pan

Hongwei He

Penghe Tang

Dongqi Zou

Yuanzheng Chu

A first network device of a plurality of network devices is provided. The first network device is configured to receive a first data packet from a second site; search a flow table stored in the first network device for a target flow entry whose flow identifier is of a first data flow, each entry comprises a flow identifier and a corresponding outbound interface identifier, the target flow entry is created when the first site sends a second data flow to the second site, a source address of the second data flow is a destination address of the first data flow, and a destination address of the second data flow is a source address of the first data flow; and if the target flow entry is found, send the first data packet through an interface corresponding to an outbound interface identifier in the target flow entry.

Packet sending method and apparatus, and storage medium

The method includes: receiving, by a first device, a first packet from a second device, where the first packet includes a primary scheduling identifier, and the primary scheduling identifier is used to identify that the second device has permission to select a path; determining, by the first device, a first path used to transmit the first packet; sending, by the first device, a second packet to the second device by using the first path, where the second packet includes a following identifier, and the following identifier is used to identify that the first device sends the packet by using a transmission path selected by a device other than the first device. This can ensure that a same path is used for bidirectional packet transmission between two communication parties while ensuring service quality, in a complex SD-WAN path selection scenario.

Packet transmission method and apparatus

An access control method and system and an access point. When a fault occurs in an access controller (AC), an access point (AP) configures a network-layer interface of the AP according to an Internet Protocol (IP) address and a media access control (MAC) address of the AC that are obtained by means of pre-learning, and then the AP routes a received packet to a Web server on a wireless local area network (WLAN) using the configured network-layer interface, where the packet is used by a first station (STA) to request to access an external server. Therefore, interconnection and interworking among wireless local area networks are implemented, and a breakdown of a wireless local area network caused in a centralized network architecture due to occurrence of a fault in an AC is avoided.

Access control method and system, and access point

Embodiments of the present invention relate to the communications field and disclose a method, a local gateway, and a system for local voice survivability, to implement local voice survivability without configuring a DNS proxy function on a local gateway or configuring a server on a user terminal. A specific solution is: detecting, according to a preset detection period, an activity state of a server recorded in a server monitoring list, where the server monitoring list records a voice server on an Internet protocol IP multimedia subsystem IMS network in advance; intercepting, when it is detected that all servers in the server monitoring list are in an unavailable state, a service data stream sent by a user terminal to the server; and providing a corresponding service response for the user terminal according to content of the intercepted service data stream. The present invention applies to a process of voice survivability.

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Nanjing, China

Yonglong Fang