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 ...

Hello, this is Yoshiki.In a previous article titled "5 Network Terms New NW Engineers Want to Learn First," I introduced:* ...

These keep me sane as ...

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 ...

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 ...

A virtual LAN is a logical division of a network that enables devices to communicate as if they are connected to a single switch. These divisions are critical to network security, performance and ...

Virtual LANs (VLANs) allow the segmentation of a physical network into multiple logical networks. VLAN trunking is the process of transporting multiple VLANs over a single network link—typically ...

What is virtual local area network hopping (VLAN hopping)? Virtual local area network hopping (VLAN hopping) is a method of attacking the network resources of the VLAN by sending packets to a port not ...

Plug both ends of a patch cable into the same unmanaged switch, and you've created a bridging loop. Broadcast frames circle ...

Maker, meme-r, and unabashed geek, Joe has been writing about technology since starting his career in 2018 at KnowTechie. He's covered everything from Apple to apps and crowdfunding and loves getting ...