公开(公告)号：US20140143413A1

公开(公告)日：2014-05-22

申请号：US14084109

申请日：2013-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yonglong FANG

IPC: H04L12/26

CPC classification number: H04L43/0876 ,  H04L63/306 ,  H04L65/1016 ,  H04L65/1046 ,  H04L65/105 ,  H04L65/1073 ,  H04L65/80 ,  H04L67/1034 ,  H04L69/40

Abstract: 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.

Abstract translation: 本发明的实施例涉及通信领域，并且公开了一种方法，本地网关和用于本地语音生存能力的系统，以在不在本地网关上配置DNS代理功能或在用户终端上配置服务器的情况下实现本地语音生存能力 。 一个具体的解决方案是：根据预设的检测周期检测记录在服务器监控列表中的服务器的活动状态，其中服务器监控列表预先在因特网协议IP多媒体子系统IMS网络上记录语音服务器; 当检测到服务器监视列表中的所有服务器处于不可用状态时，拦截用户终端向服务器发送的服务数据流; 并根据被拦截的业务数据流的内容为用户终端提供相应的业务响应。 本发明适用于语音生存能力的过程。

公开(公告)号：US20220345400A1

公开(公告)日：2022-10-27

申请号：US17859387

申请日：2022-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongwei HE ,  Yonglong FANG ,  Qi YU

IPC: H04L45/00 ,  H04L12/46

Abstract: 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.