Communication between VLANs - Layer 3 switching

Communication between VLANs for experimental purposes - Layer 3 switching

                   掌握配置VLANIF接口的方法
                   理解数据包跨VLAN路由的原理
                   掌握测试多层交换网络连通性的方法

Experimental principle

Layer 3 switches add routing functions to the original Layer 2 switches. At the same time, because data is not routed through physical lines like single-arm routing, it solves the problem of bandwidth bottlenecks and provides a flexible solution for network design. solution.
A VLANIF interface is an interface based on the network layer and can be configured with an IP address. With the help of a VLANIF interface, a Layer 3 switch can implement the routing and forwarding function.

Experimental process and conclusions:
1. Network topology

2) Configuration process of switch S3

2.1) Configured port information of switch S3

3) Configuration process of switch S4

3.1) Configured port information of switch S4

4) Configuration process of switch S5

4.1) Configured port information of switch S5

5) pc3ping its own gateway to communicate with pc4

6) pc4ping its own gateway and pc3 communication