Network Infrastructure

Network hardware and physical appliances, such as routers, switches, gateways, hubs and bridges, serve as the vital foundation of network infrastructure. Common network protocols and more emergent network software also play major roles in any architecture. While networking has shifted to software-centric principles, see how traditional network infrastructure keeps pace.

July 12, 2022 12 Jul'22
Counterfeit scheme trafficked in $1 billion in Cisco gear

A Florida man has been charged with running a counterfeit operation that duped hospitals, schools, government agencies and the military.
July 11, 2022 11 Jul'22
Chinese vendor H3C introduces first Wi-Fi 7 router

The H3C Magic BE18000, powered by a Qualcomm chipset, offers several significant Wi-Fi 7 features, including multilink operation and 320 MHz of channel bandwidth.
July 06, 2022 06 Jul'22
Evernote, Home Depot outsource network management

Offloading daily network management to networking vendors allowed Home Depot and Evernote to direct in-house IT staff to business-critical projects.
May 09, 2022 09 May'22
Cisco warns of hardware failure in DIMM memory components

A manufacturing defect affecting some DIMMs made in late 2020 could cause persistent memory errors and server failure. Cisco recommends customers replace impacted DIMMs.

Bring yourself up to speed with our introductory content

Spine-leaf (spine-leaf architecture)

Spine-leaf, or leaf-spine, is a two-layer network topology composed of spine and leaf switches. Continue Reading
Stefan-Boltzmann constant

The Stefan-Boltzmann constant, symbolized by the lowercase Greek letter sigma (σ), is a physical constant expressing the relationship between the heat radiation emitted by a black body and its absolute temperature. Continue Reading
domain

Specific to the internet, the term domain can refer to how the internet is structured, and domain also refers to how an organization's network resources are organized. Continue Reading

Weigh the pros and cons of technologies, products and projects you are considering.

How vendors support sustainable networking initiatives

Organizations are focusing on sustainability in all business divisions, including network operations. These tools could help organizations make their enterprise networks green. Continue Reading
5 factors that form the future of Wi-Fi

For businesses, mounting ownership costs, unrealistic performance expectations, client device chaos and competing technologies all play a role in the future of Wi-Fi. Continue Reading
What is network virtualization? Everything you need to know

Network virtualization is a method of combining the available resources in a network to consolidate multiple physical networks, divide a network into segments or create software networks between VMs. Continue Reading

Learn to apply best practices and optimize your operations.

How enterprise networks use WAN virtualization

SD-WAN is the most common form of WAN virtualization. But virtual WAN strategies are evolving to include software-defined perimeter and cloud concepts. Continue Reading
How to secure NetOps initiatives using Agile methodology

As more NetOps teams implement Agile methods, network and security testing must be part of a holistic approach that involves developers, networking and security teams working together. Continue Reading
5G Advanced features include accurate timing, AI support

5G Advanced is the latest specification of 5G. Some capabilities it can deliver include enhanced massive MIMO, enabling 5G with AI and accurate location positioning. Continue Reading

We’ve gathered up expert advice and tips from professionals like you so that the answers you need are always available.

Learn to perform a DNS backup and restore

DNS outages cause connectivity issues that prevent basic tasks from executing properly. Understand how to perform a restore for a DNS zone, which is not always intuitive. Continue Reading
Troubleshoot name resolution on Windows, Linux and macOS

Network administrators can troubleshoot name resolution using a variety of methods, including ping, nslookup and PowerShell cmdlets. Here are some troubleshooting best practices. Continue Reading
5 network virtualization challenges and how to solve them

The challenges of network virtualization include an overhaul of network architecture, thorough staff training and breaking down knowledge silos among IT departments. Continue Reading