公开(公告)号：US20040042485A1

公开(公告)日：2004-03-04

申请号：US10397959

申请日：2003-03-26

申请人： Alcatel Canada Inc.

发明人： Balachandar S. Gettala ,  Michael Jhu ,  Michael Roberts ,  Henri R. Vandette ,  Glenn Arne Karlsen ,  Jim Hurd ,  Gerry Dubois ,  James A. Stanton JR. ,  Suryaram Alladi

IPC分类号： H04J003/16

CPC分类号： H04L65/1043 ,  H04L29/06 ,  H04L29/06027 ,  H04L67/1002 ,  H04L67/14 ,  H04L69/14 ,  H04L69/16 ,  H04L69/164 ,  H04L69/329 ,  H04L2012/5665 ,  H04L2012/5671

摘要： According to at least one embodiment of the invention, a protocol for managing redundant signaling links to form a reliable signaling connection is provided. The protocol has an initialization phase, in which the availability of signaling links is determined and an available signaling link is selected and activated, followed by an operational phase in which the activated link is used for sending signaling messages for a higher-level protocol. During the operational phase both links are monitored for availability using a query and reply technique. Should either link fail, a status message is sent to the remaining available link along with an activity switchover being performed, as required, depending on whether the failed link was the active link. The higher-level protocol process running on the media gateway performs management of the links, and the media gateway controller operates as a slave, whereby it need not initiate nor control any of the activities for management of the signaling links, thereby reducing the processing burden placed upon it. However, optionally, a media gateway controller may request a link switchover, which may be used to support link maintenance activities or link congestion avoidance measures.

摘要翻译： 根据本发明的至少一个实施例，提供了一种用于管理冗余信令链路以形成可靠信令连接的协议。 协议具有初始化阶段，其中确定信令链路的可用性，并且选择和激活可用的信令链路，随后是操作阶段，其中激活的链路用于发送用于较高级协议的信令消息。 在运行阶段，使用查询和回复技术监控两个链路的可用性。 如果任一链接失败，则根据需要，根据是否发生故障的链接是活动链接，会将状态消息与正在执行的活动切换一起发送到剩余的可用链接。 在媒体网关上运行的上级协议过程执行链路的管理，媒体网关控制器作为从机进行操作，由此不需要启动或控制用于管理信令链路的任何活动，从而减少处理负担 放在它上面 然而，可选地，媒体网关控制器可以请求可以用于支持链路维护活动或链接拥塞避免措施的链路切换。