VRRP是为增强网络可靠性而设计的协议，本文档在分析VRRP工作原理的基础上，对linux下的两种实现（VRRPD及keepalived）进行说明。VRRPD简单，但是基于RFC2338来实现；而keepalived则是LVS的一部分，可提供vrrp以及health-check功能。-VRRP is designed to enhance network reliability and agreement of this document is based on the principle of