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1. 发明公开

EP1376988A1 Method for high availability of a BGPv4 router (Border Gateway Protocol version 4 ) 审中-公开
标题翻译： Verfahren zur hohenVerfügbarkeiteines BGPv4路由器（边界网关协议版本4）
公开(公告)号：EP1376988A1
公开(公告)日：2004-01-02
申请号：EP03253814.2
申请日：2003-06-17
申请人： Chiaro Networks Ltd.
发明人： Visser, Lance A. , Ning, Qi
IPC分类号： H04L29/06
CPC分类号： H04L45/00 , H04L45/28
摘要： High availability BGP4 is based on redundant hardware as well as redundant software that replicates the RUN state of BGP4. There are two copies, respectively active 11 and backup 12, of BGP4 running on two separate redundant hardware platforms. All BGP4 internal implementations apply various methods to replicate the running state of BGP4 independently of peer network routers 14, 15, 16. When this hardware or software fails 302, 304 on one redundant hardware platform, peer routers are unaware of the failure. Internally, based on duplicative states, the local router 10 recovers 303, 305 from the failure and keeps the protocol running. During the recovery period, the local router can bring up a backup 12 again. In the HA architecture, these activities are not detected by peer routers, such that there is no instability to the Internet backbone caused by BGP4 failure.
摘要翻译：高可用性BGP4基于冗余硬件以及复制BGP4运行状态的冗余软件。在两个独立的冗余硬件平台上运行的BGP4有两个副本，分别为活动的11和备份12。所有BGP4内部实现都采用各种方法来独立于对等网络路由器14,15,16复制BGP4的运行状态。当硬件或软件在一个冗余硬件平台上故障302,304时，对等路由器不知道该故障。在内部，基于重复状态，本地路由器10从故障中恢复303,305，并保持协议的运行。在恢复期间，本地路由器可以再次启动备份12。在HA架构中，对等体路由器没有检测到这些活动，使BGP4故障引起的互联网骨干网不会发生不稳定。

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