Search

Anyone who’s managed switches over the years knows that the Spanning-tree protocol (STP) is both the best and worst thing to ever happen to the data center at layer 2 of the OSI model. On the plus side, the Spanning-tree protocol is what first allowed us to create redundant paths within our switching infrastructure, making our data center much more resilient to outages than ever before. Anyone who’s experienced a “broadcast storm” knows the full value of Spanning-tree in the traditional switching environment. We’ve also seen many improvements in Spanning-tree over the years to make it work faster and more efficiently (i.e. Rapid Spanning-tree, Bridge Assurance, and many others).

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.

According to Cisco marketing, Dynamic Multipoint VPN (DMVPN) “will lower capital and operation expenses, simplifies branch communications, reduces deployment complexity, and improves business resiliency.” Okay. But what is it, really, and why should we care?

This comprehensive 5 Day training program provides an end-to-end understanding of Cisco cloud security, with Cisco Secure Access as the central platform supporting Secure Internet Access, Secure Private Access, Zero Trust Access, and traditional VPN services. The cou...

Learn how a switch moves data through the network, and what makes a switch efficient.

Introduces learners to developing advanced services using Cisco Network Services Orchestrator (NSO) programmability with Python scripting.

Global Knowledge's live labs allowed his team to apply skills they learned in the classroom to hands-on lab settings on the same equipment deployed in their network.

Learn how to build up network security in our webinar.

What were the top paying IT and project management certifications for 2016? his article will help you answer both questions by providing a review of the 15 top-paying certifications.

Certifications are the most common way in IT to prove you have the skills to solve various technical and business challenges. In this article, I'll address a range of skill sets. For each certification listed, I've included what the certification measures, the requirements to obtain it.