To begin, we must have a more formal definition of what a LAN is. LAN stands for local area network. Hubs and switches usually are thought of as participating in a single LAN. Normally, if you connect ...

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 ...

What they do, why they're useful, and how to get started A virtual local area network is a logical subnetwork that groups a collection of devices from different physical LANs. Large business computer ...

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.<BR><BR>We have two switches and two VLANs. Actually, we have over a hundred switches and ...

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 ...

VLANs break a physical LAN into several logical broadcast domains. Each LAN station hears traffic sent by its own VLAN but receives nothing from stations in other VLANs -- not even from those ...

Have you been told that VLANs are the ultimate solution to your network woes? That they’ll magically secure your infrastructure, eliminate complexity, and solve all your traffic management headaches?