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虚拟路由转发介绍

2022/07/15294 作者:佚名
导读:VPN Routing and Forwarding (VRF) is a technology used in computer networks that allows multiple instances of a routing table to co-exist within the same router at the same time. Because the routing in

VPN Routing and Forwarding (VRF) is a technology used in computer networks that allows multiple instances of a routing table to co-exist within the same router at the same time. Because the routing instances are independent,the same or overlapping IP addresses can be used without conflicting with each other.

VRF---VPN路由转发实例(VPN Routing & Forwarding Instance)

每一个VRF可以看作虚拟的路由器,好像是一台专用的PE设备。该虚拟路由器包括如下元素:

一张独立的路由表,当然也包括了独立的地址空间;

一组归属于这个VRF的接口的集合;

一组只用于本VRF的路由协议。

对于每个PE,可以维护一个或多个VRF,同时维护一个公网的路由表(也叫全局路由表),多个VRF实例相互分离独立。

*文章为作者独立观点,不代表造价通立场,除来源是“造价通”外。
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