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配置HSRP——实现断网用户无感知-小白陈的博客

 5 years ago
source link: http://blog.51cto.com/13643643/2117768
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HSRP：热备份路由器协议是cisco的私有协议。该协议中含有多台路由器，对应一个HSRP组。该组中只有一个路由器承担转发用户流量的职责，这就是活跃路由器。当活跃路由器失效后，备份路由器将承担该职责，成为新的活跃路由器。这就是热备份的原理。实现HSRP的条件是系统中有多台路由器，它们组成一个“热备份组”，这个组形成一个虚拟路由器。在任一时刻，一个组内只有一个路由器是活跃的，并由它来转发数据包，如果

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