Virtual LAN (VLAN) technology, which is defined under the IEEE 802.1q specifications, has allowed enterprise to extend the reach of their corporate networks across the WAN. VLANs enable a LAN to be ...

I’ve seen private virtual LANs (PVLANs) described as a way to isolate DMZ servers from each other by restricting traffic between switch ports. Cisco’s PVLANs allow ports to be promiscuous, isolated or ...

We have a Cisco Catalyst 6513 switch. I need to keep a small network of about 30 computers separate from the main network of 500, but still have the 30 use the same gateway (our SonicWall) for ...

Use these tips as a guide to keeping a lock on data when using virtual LANs. Securing a virtual LAN network begins with physical security. These best practices can help administrators and IT managers ...

I need to remove port 2 from that VLAN without removing port 1. Whelp, figured it out. The switch is smarter than I am. Ports 1 and 2 are in a Port-channel, so whatever operation you perform on one it ...