VLANs and trunking are essential for building efficient, secure, and scalable networks. By segmenting traffic and using 802.1Q trunks, you can extend VLANs across devices without losing isolation.

Add Yahoo as a preferred source to see more of our stories on Google. When set up correctly, virtual LANs improve the performance of busy networks. VLANs can group client devices that communicate ...

I'm looking for some guidance on a design for OSPF in an environment that needs layer two trunks between the routers. Consider the below topology: Layer 3 switches A, B and C are connected with trunks ...

I set a port on a switch to trunking, but it won't pass data. Here's the scenario. See if you can help me out. We have two switches and two VLANs. Actually, we have over a hundred switches and a dozen ...

In Cisco LAN switch environments, the native VLAN is typically untagged on 802.1Q trunk ports. This can lead to a security vulnerability in your network environment. It is a best practice to ...