There are a number of emerging and proposed standard protocols focused on optimizing the support that data center Ethernet LANs provide for server virtualization. Several of these protocols are aimed ...

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 ...

The IEEE’s 802.1Q standard was developed to address the problem of how to break large networks into smaller parts so broadcast and multicast traffic wouldn’t grab more bandwidth than necessary. The ...

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 ...

Can anybody give me a step by step guide for setting up multiple VLANs on a Cisco 1841 modular router? I can't find anything to help me through my problem, which, incidentally, is that I can create ...

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 ...