He broke it, but was able to get it fixed right away.

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 ...

It's easy to see why virtual LANs have become popular on networks of all sizes. Imagine having multiple separate physical networks within a single organization — without the headache of managing ...

In the IP based Ethernet networks, data and voice services are often transmitted simultaneously over the network. Voice traffic, in particular, requires a higher forwarding priority than data traffic.

Rick Cook learned programming on a computer with magnetic drum memory. Since then he's written thousands of articles on all aspects of computers and high technology — as well as several fantasy novels ...

I manage a small office network (around 10 computers) for a client of mine, and they decided to get a new phone system without realizing it was an IP system. It is a Cisco IP phone system. Previously ...

Nutter helps a reader protect the servers in his growing network. As our network grows in size, so does the need to protect the servers. We have already put in an interior firewall between the servers ...

Q: I have a Cisco L3 3560 switch, 5 unmanaged switches and 150 users. I need to create 10 VLANs. How can I configure my VLAN given the switches I have? It depends on how many users you would need in ...

The Test Center redefined an existing LAN to take advantage of VLANs for bandwidth and security purposes. The network, designed to approximate the kind of environment found in small businesses, ...

A virtual LAN (VLAN) is a broadcast domain created by switches. VLANs are a convenient way to connect ports from different switches and different buildings onto the same network and broadcast domain, ...