hcip三层架构冗余

HCIP中的三层架构冗余可以通过虚拟路由冗余协议（VRRP）来实现。VRRP是一种公有协议，其原理和HSRP（热备份路由协议）类似。不同之处在于VRRP可以在多台设备之间实现冗余，并且只有master设备发送hello消息。另外，VRRP也可以使用物理接口的IP地址作为网关地址。默认情况下，VRRP会开启抢占模式，并且hold time为3秒。这样的架构可以提高网络的可靠性和可用性。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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