Networking: Page

VLANs versus IP subnets: Why use a VLAN over IP subnetting?

A virtual local area network (VLAN) is better than IP subnetting because its advantage is security. Learn what a VLAN is and how it differs from creating IP subnets, in this expert response from our networking fundamentals expert.

By Chris Partsenidis • Feb. 4, 2009

Avoid high-risk data commingling with VMware virtual networks to prevent security vulnerabilities

Avoid security vulnerabilities caused by placing VMware ESX and ESXi data of varying security and classification levels on a converged network by understanding how storage and virtual machine data interoperates over various networks.

By Edward Haletky • Dec. 17, 2008

Implement access control systems successfully in your organization

Access control is an important step toward mitigating an organization's security risks. Learn the importance of an access control system and how to implement it successfully.

By Stephen Bigelow • Dec. 1, 2008

Network design documentation

Inadequate network documentation can lead to a multitude of problems for solution providers. Learn the importance of network documentation and what network design documentation a solution provider needs from customers.

Nov. 11, 2008

Network design considerations checklist for providers

There are many network design considerations that every solution provider should take into account before embarking on a network design project. Knowing these trends and caveats will help you make the best network design planning and network design choices for your customer.

By Stephen Bigelow • Oct. 27, 2008

Teaming NICs achieves load balance and failover on VMware ESX

By grouping, or teaming, network interface cards (NICs), you can achieve better load balancing and failover capabilities for VMware ESX guest virtual machines.

By David Davis • April 28, 2008

How to configure wireless access points

A crucial part of any WLAN installation is configuring wireless access points. Learn which configuration options -- such as IP address, transmit power and beacon interval -- are best for your customers.

By Jim Geier, Contributor • April 21, 2008

Troubleshooting remote scripting using Network Monitor 3.0 -- Managing Windows networks using script

Learn how to use Network Monitor 3.0 for troubleshooting a remote scripting error in this tip originally published on WindowsNetworking.com.

By Mitch Tulloch • Feb. 27, 2008

Use Netstat to determine which ports to open on a Windows firewall

When troubleshooting a Windows XP firewall, the solution is often simply opening the right firewall port. But what port should you open? This tip walks you through using Netstat to identify which firewall port an application uses.

By Brien Posey • Oct. 3, 2007

Optical networks: Core network design best practices

Core optical network design must take into consideration network requirements specific to the core, including a high degree of aggregation, low reconfigurability, and large geographic scope, while confronting such challenges as router adjacency, service interconnection and overall management.

By Tom Nolle • July 18, 2007

CDMA and gold code

Gold code sequences used in CDMA allow callers to better use available bandwidth with less interference.

By Jon Snader • May 23, 2007

What equipment do I use to connect two LANs in different cities? What are the steps?

How do you connect two LANS from different cities? VPN expert Sampath Ramaswami notes the steps to be taken, in this Q&A.

By Sampath Ramaswami • April 20, 2007

Cisco wireless access point configuration from scratch

Learn what the Cisco 1242 wireless access point can do for you and how to configure one from scratch. This tip covers basic security settings, enabling the wireless radios, and how to make a successful connection. The 1242AG is a powerful business-grade wireless AP with lots of features.

By David Davis • Feb. 22, 2007

CDMA technology explained

CDMA principles explained.

By Craig Mathias • Jan. 31, 2007

What are the fundamental principles of CDMA?

In this Q&A, our expert, Lindi Horton gives us an explanation of what CDMA is and what some of its fundamental principles are.

By Lindi Horton • Nov. 25, 2006

Half duplex vs. full duplex Ethernet 10BASE-T topologies

Ever wonder why half duplex Ethernet 10BASE-T topologies have a slower data transmission rate than full duplex Ethernet 10BASE-Ttopologies? Find out in this expert response by Lindi Horton.

By Lindi Horton • Nov. 25, 2006

IP addressing and subnetting: Calculate a subnet mask using the subnet’s formula

IP addressing and subnetting are an important part of networks. Learn how the subnet's formula works and why it's important to know how to calculate the subnet mask "longhand."

By David Davis • Nov. 20, 2006

Duplex mismatch

What is duplex, and what is the difference between half and full duplex? What is a duplex mismatch? How can autonegotiation help or hurt your network? How can you resolve duplex conflicts? In this tip, David Davis helps networking engineers and newcomers understand the issues behind one of the most troublesome problems plaguing today's networks.

By David Davis • Aug. 28, 2006

Kbps (kilobits per second)

In the U.S., Kbps stands for kilobits per second (thousands of bits per second) and is a measure of bandwidth (the amount of data that can flow in a given time) on a data transmission medium.

By TechTarget Contributor • Aug. 7, 2006

Why do we need the MAC address if all Ethernet connections are done via IP address?

By Sudhanshu Gupta • Nov. 7, 2005

What is difference between a WINS server and a DNS server?

By Chris Partsenidis • Oct. 26, 2005

How do I open port 177 on my router so that other clients can get a GUI display of my server remotel

By Puneet Mehta • Oct. 14, 2005

How do I set up two or more wireless adapters on the same computer to work together?

By Lisa Phifer • Oct. 4, 2005

well-known port numbers

The well-known port numbers are the port numbers that are reserved for assignment by the Internet Corporation for Assigned Names and Numbers (ICANN) for use by the application end points that communicate using the Internet's Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP).

By TechTarget Contributor • Sept. 21, 2005

What is a collision domain? How does replacing a hub with a switch affect collision?

By Puneet Mehta • July 20, 2005