Create static LAG1 and LAG2 on switch A, and create static LAG for switch B and switch C respectively.Both department A and department B can access the internet.Hosts in different departments cannot communicate with each other all hosts can access the internet.Users need to improve the bandwidth and redundancy of the link between the switches.
Sometimes, we may encounter the application that needs to use these two technologies at the same time here is a configuration example. LAG (Link Aggregation Group) is a technology that can aggregate multiple physical ports into a logical interface, increasing link bandwidth and providing backup ports to enhance the connection reliability. A LAN can be divided into several VLANs logically, and only the hosts in the same VLAN can communicate with each other. VLAN (Virtual Local Area Network) is a technology that can modify the broadcasting domain.
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