公开(公告)号：US07366101B1

公开(公告)日：2008-04-29

申请号：US10611573

申请日：2003-06-30

Applicant: Roopesh R. Varier ,  David Jacobson ,  Guy Riddle

Inventor： Roopesh R. Varier ,  David Jacobson ,  Guy Riddle

IPC: H04J3/14 ,  H04J3/06 ,  H04L12/26 ,  H04L12/28 ,  H04L12/56

CPC classification number: H04L45/00 ,  H04L41/0893 ,  H04L41/0896 ,  H04L45/586

Abstract: Methods, apparatuses and systems directed to a network traffic synchronization mechanism facilitating the deployment of network devices in redundant network topologies. In certain embodiments, when a first network device directly receives network traffic, it copies the network traffic and transmits it to at least one partner network device. The partner network device processes the copied network traffic, just as if it had received it directly, but, in one embodiment, discards the traffic before forwarding it on to its destination. In one embodiment, the partner network devices are operative to exchange directly received network traffic. As a result, the present invention provides enhanced reliability and seamless failover. Each unit, for example, is ready at any time to take over for the other unit should a failure occur. As discussed below, the network traffic synchronization mechanism can be applied to a variety of network devices, such as firewalls, gateways, network routers, and bandwidth management devices.

Abstract translation: 针对网络流量同步机制的方法，装置和系统，便于在冗余网络拓扑中部署网络设备。 在某些实施例中，当第一网络设备直接接收网络业务时，它复制网络流量并将其发送到至少一个伙伴网络设备。 合作伙伴网络设备处理复制的网络流量，就像它直接接收到的，但是在一个实施例中，在将流量转发到其目的地之前丢弃该流量。 在一个实施例中，伙伴网络设备可操作以交换直接接收的网络业务。 因此，本发明提供增强的可靠性和无缝故障切换。 例如，如果发生故障，每个单元随时准备接管另一个单元。 如下所述，网络流量同步机制可以应用于各种网络设备，如防火墙，网关，网络路由器和带宽管理设备。