公开(公告)号：US20040010731A1

公开(公告)日：2004-01-15

申请号：US10192252

申请日：2002-07-10

Applicant: Nortel Networks Limited

Inventor： Ken Yu ,  Shang Chang

IPC: G06F011/00

CPC classification number: G06F11/2005

Abstract: An user may define failover events in a network device by customizing the network device's response to a failure on the network. Specifically, an user may instruct the network device to activate or deactivate one or more interfaces, or undergo any number of additional communications, upon a perceived network failure or critical interface failure. This enables the network device to initiate or terminate connectivity with one or more network devices, as well as optionally performing failover to a standby network device, to enable the network device to more smoothly handle failover procedures and transition traffic to the network device that will be responsible for communication after failover has been effected.

Abstract translation: 用户可以通过定制网络设备对网络故障的响应来定义网络设备中的故障切换事件。 具体地，用户可以在感知到的网络故障或关键接口故障时指示网络设备激活或去激活一个或多个接口，或经历任何数量的附加通信。 这使得网络设备能够启动或终止与一个或多个网络设备的连接，以及可选地执行到备用网络设备的故障切换，以使得网络设备能够更平稳地处理故障转移过程并将流量转移到网络设备 负责故障转移后的通信。

公开(公告)号：US20040010583A1

公开(公告)日：2004-01-15

申请号：US10192663

申请日：2002-07-10

Applicant: Nortel Networks Limited

Inventor： Ken Yu ,  Ramasamy Jesuraj ,  Arun Kudur ,  Shang Chang

IPC: G06F015/16

CPC classification number: H04L45/00 ,  H04L41/0663 ,  H04L43/0817 ,  H04L45/28 ,  H04L45/586

Abstract: A critical interface may be defined for a network device such that if the critical interface goes DOWN, the network device will perform a forced failover. IP addresses are assigned to interface groups, and interface groups are assigned to a critical interface. The critical interface will go DOWN if any one of the interface groups goes DOWN. The interface groups will not go DOWN, however, unless all members' IP addresses assigned to the interface group go DOWN. By configuring the critical interface in this manner, the network manager has increased flexibility in defining which events should and should not trigger failover of the network device. Additionally, combinations of events may be grouped to enable the network manager to take into account fairly complex failure scenarios and specify, with precision, the action to be taken by the network device under myriad possible situations.

Abstract translation: 可以为网络设备定义关键接口，使得如果关键接口掉电，则网络设备将执行强制故障转移。 IP地址分配给接口组，接口组分配到关键接口。 如果任何一个接口组关闭，关键接口将关闭。 但是，除非分配给接口组的所有成员的IP地址都处于DOWN状态，否则接口组不会下降。 通过以这种方式配置关键接口，网络管理员在定义哪些事件应该和不应该触发网络设备的故障切换时增加了灵活性。 此外，事件的组合可以被分组以使得网络管理者能够考虑到相当复杂的故障场景，并精确地指定网络设备在各种可能情况下采取的动作。