Reading Time-approximately: 5 minutesThis tip discusses how to choose the right-sized uninterruptible power supply (UPS) for your data center. It also explains common mistakes in UPS sizing and why UPS power ratings can be so confusing. By Bob McFarlane When it comes to buying the right uninterruptible power supply (UPS) for your data center, size matters. This tip explains UPS sizing and capacity
Reading Time-approximately: 3 minutesDemilitarized zone, network access control and VPN termination points are some of the on-premises components that need to be addressed in a remote work infrastructure. By David Jacobs At the onset of the COVID-19 pandemic, the stay-at-home orders came quickly and with minimal warning. Chances are you turned off the office lights, locked the door and headed home. Maybe you
Reading Time-approximately: 4 minutesA MAC address and an IP address each identify network devices, but they do the job at different levels. Explore the differences between the two and learn why both are necessary. By John Burke and Chris Partsenidis Every computer or device on the internet has two types of addresses: its physical address and its internet address. The physical address —
Reading Time-approximately: 4 minutesWireless LAN integration means upgrading wired networks with new equipment and traffic prioritization to avoid bottlenecks between the networks and provide QoS for wireless multimedia applications, including WLAN voice and video. By Lisa Phifer In the first part of this series, we discussed how to make the business case for integrated wired and wireless LANs. In this tip, learn how to
Reading Time-approximately: 3 minutesEven though they have common traits, there is a difference between a Layer 3 switch and a router. Each plays a key role in making sure packets get sent to their proper destination. By Andrew Froehlich To determine the difference between a Layer 3 switch and a router, it’s helpful to understand how routing works in an enterprise network. Routing
Reading Time-approximately: 8 minutesNetwork design tools help architects map out the company infrastructure but only with the right product. Explore these eight vendors and their tools to make the right buy. By Andrew Froehlich Network architects must have the right tools on hand to create a manual network diagram. While automated tools can dynamically build maps of existing network infrastructures, architects use vector graphic tools
Reading Time-approximately: 4 minutesSecurity audits, evaluations of tools and looking realistically at trending technologies are some ways an organization can ensure its network security is the best it can be. By Michaela Goss Contrary to what some professionals might assume, remote work can help enhance an organization’s network security strategy. When most organizations were forced into a work-from-home model due to the COVID-19 pandemic,
Reading Time-approximately: 3 minutesSome of the infrastructure components behind slow performance include CPU, memory and networking. These tips will help you find and eliminate those bottlenecks. By Brian Kirsch When it comes to bottlenecks, the big four that always come to mind are CPU, memory, network and storage. Since these are typically the infrastructure pieces that make up a virtual environment, it stands
Reading Time-approximately: 4 minutesAdministrators can get more out of their servers by overcommitting CPU resources and balancing VM distribution. By Brian Kirsch One of the great things about virtualization is the ability to abstract and share resources. This abstraction also enables the overcommitment of resources — a practice that describes provisioning more logical resources than is physically available. Not all servers within a
Reading Time-approximately: 9 minutesIP addressing and subnetting are important and basic elements of networks. In this article, learn how to calculate a subnet mask based on the required number of subnets and hosts. By Terry Slattery and David Davis In this article, we explore IP addressing and subnetting and show how to apply this valuable information to real-world scenarios. We address how to
What is COVID-19?
On 31 December 2019, the World Health Organization (WHO) reported a cluster of pneumonia cases in Wuhan City, China. ‘Severe Acute Respiratory Syndrome Coronavirus 2’ (SARS-CoV-2) was confirmed as the causative agent of what we now know as ‘Coronavirus Disease 2019’ (COVID-19). Since then, the virus has spread to more than 100 countries, including South Africa.
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