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When properly utilized, VLANs and trunks provide flexibility, stability and ease of troubleshooting. This paper provides technical details about VLANs and trunks, along with design options at a basic to intermediate level. Recommendations and commands are included throughout.

There are many interesting new issues that seem to have come with the addition of voice and video to the data network. Most of the engineers that are now working on VoIP networks come from either a pure data network background or a traditional phone system background...

There are some common misconceptions on the part of some of my students as to how VPN sessions are established from either a remote location or remote user to the ASA firewall. In particular, a “gray area” seems to be when the attributes from the tunnel group are app...

In the previous post, we discussed the need for VXLAN in the cloud along with the issues it solves. In this post, we will focus more on how VXLAN works.

Getting the best possible performance from a SQL server can become more complicated as you add more operations to your database.

Global Knowledge Course Director and Lab Topology Architect Joey DeWiele, a specialist in Unified Communications, discusses Cisco Unity, Unity Connection & Unity Express.

Software-defined networking (SDN) is a solution that will enable your organization to meet the demands of network programmability and automation. The result will be greater network agility to support new applications while complying with increasing security needs.

The way Microsoft certifies Azure skills has changed. In this recorded webinar, we’ll cover what these changes mean for your Azure Certification path.

The key difference between hubs, switches and bridges is that hubs operate at Layer 1 of the OSI model, while bridges and switches work with MAC addresses at Layer 2 of the OSI model.

I’d like to share some best practices for training BI administrators and architects in your organization. Because they will ultimately lead a major BI upgrade, administrators need training before a major project begins, not a few days or weeks before a go-live like other stakeholders. While there are many facets to upgrading your SAP BI system, I’m focusing on the need for BI architects and administrators to understand the BI4 platform’s new tools, new architecture and new monitoring capabilities.