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Spanning Tree Protocol (STP) is dead, or at least it should be. It’s too slow to converge when there’s a change, and it causes issues with performance because there is only one forwarding path. It was developed in 1985 by Radia Perlman at Digital Equipment Corporation to allow for redundant paths within a Layer 2 topology, which was great in 1985. In fact, it was huge! So much so, that it was later standardized by the IEEE as 802.1D, and we’ve been living with it ever since.
Cisco Access Control Lists (ACLs) are used in nearly all product lines for several purposes, including filtering packets (data traffic) as it crosses from an inbound port to an outbound port on a router or switch, defining classes of traffic, and restricting access to devices or services. Knowing how to design, configure, and troubleshoot ACLs is required for all network engineers working within a Cisco network.
The National Institute of Standards and Technology (NIST) created a cloud definition that has been well-accepted across the IT industry. NIST was mandated to assist government agencies to adopt cloud computing for their IT operations. As part of their mandate, NIST created multiple working groups to define cloud computing, its architecture, and requirements. In this paper we explore the center core of NIST's cloud definition.
RTMT provides a set of canned views of both system resources and application counters that provide you with a snapshot of your environment right out of the box. Read on to learn how you can make RTMT even more helpful by customizing it to show you different views of your resources and CUCM environment.
With Forrester Research declaring "Waterfall processes have become obstacles to speed, quality and predictability," and more than 85% of CIO's surveyed by CIO Magazine using or planning to pursue Agile practices in 2014, this one-hour webinar will explore the basics of Agile and why so many organizations are adopting Agile methods.
This white paper addresses four different components of the Tivoli monitoring infrastructure for creating a high availability environment while providing redundancy and failover capacity. Although the principles are the same for each of these systems, the methods for adhering to these principles are different for each of them.
Many people believe that cloud computing requires server (or desktop) virtualization. But does it? We will look at using virtualization without cloud computing, cloud computing without virtualization, and then look at using both together. In each case, we'll look at where each deployment might be most useful, some use cases for it and some limitations.
In this video, instructor Glenn Weadock examines new Taskbar capabilities, such as pinning non-loaded programs, customizing the jump list, and selectively hiding all but one active program.
In this video, Practice Leader Craig Brown discusses our exclusive Server 2008 course - Configuring, Managing, and Maintaining Server 2008 R2 (M6419). Specifically, the enhancements we've made to this course through Server 2008 R2 supplemental learning materials and custom hands-on labs that enable the student to utilize critical Server 2008 R2 functions after completing the course.
With the onset of the Digital Age, IT professionals today are hit with a tsunami of changes! "By 2018, adoption of mobile, social, cloud, analytics will redefine 90% of IT roles" according to IDC 2014 Predictions: CIO Agenda. Large organizations are eliminating silos. Small and medium organizations are outsourcing technology services. Digital natives have entered the workforce. New roles will emerge as new ways of doing business are introduced and as old technology fades away. Today's IT professionals must adapt, and a new set of skills is in order. Join Pranav Shah, Manager of Information Technology and Security at Sony Canada, and Pam Maguire, Business Development Manager, Global Knowledge, for a 60 minute webinar on how to future-proof your IT career in the Digital Age. You will learn about how IT roles are changing, what organizations are looking for, and what you can do now to be ready.