In this paper, we detailedly describe two ways used by Layer 3 switch when it accomplishes VRRP redundancy backup in the network.

本文详细阐述了三层交换机进行VRRP冗余备份时所采用的两种方式。

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All the protocols such as IPSTB, HSRP and VRRP provide the function of redundance for static route, but they don t provide load balance well.

HSRP和VRRP协议均实现了静态路由的热备份，但都没有很好地解决负载均衡的问题。

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