V2EX vrrp

VRRP

定义 Definition

VRRP(Virtual Router Redundancy Protocol,虚拟路由器冗余协议)是一种网络冗余协议,用于让多台路由器(或三层交换机)在同一网段上“共同扮演”一个虚拟默认网关;当主设备故障时,备设备可快速接管,从而提高网关的可用性。(常用于企业网络出口、核心网关冗余等场景。)

发音 Pronunciation (IPA)

/vi r r pi/

例句 Examples

We enabled VRRP on the gateway to avoid downtime.
我们在网关上启用了 VRRP 来避免停机。

In our data center, VRRP provides a virtual default gateway, so if the master router fails, a backup router takes over automatically within seconds.
在我们的数据中心里,VRRP 提供一个虚拟默认网关,因此如果主路由器故障,备路由器会在数秒内自动接管。

词源 Etymology

VRRP是一个首字母缩略词,来自 Virtual Router Redundancy Protocol。该协议由 IETF 标准化,用于在局域网内通过选举“主/备”来实现网关冗余与故障切换。

相关词 Related Words

文献与作品 Literary / Notable Works

  • IETF RFC 5798: Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6
  • IETF RFC 3768: *Virtual Router Redundancy Protocol (VRRP)*(早期版本标准)
  • Cisco Press 等网络工程教材与认证书籍中关于“第一跳冗余(FHRP)”的章节常会讨论 VRRP(通常与 HSRP、GLBP 对比)
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