Training in Business

Most network professionals have a high degree of awareness of the principles of Virtual Local Area Networks (VLANs) and the importance of trunk links use to carry this data between switches. The underlying theory involved is at the foundation of most certification courses, various Cisco Press books, and even in breakout sessions at many conferences. While the proverbial “big picture” of the process is straightforward enough to the initiated, some of the nuances can become somewhat vague. Dynamic Trunking Protocol (DTP) and its predecessor, Dynamic Interswitch Link (DISL), are used to automatically negotiate the establishment of a trunk, but the many options and settings can become more confusing than helpful.

Which three items do you need to have in order to replace a failed device?

The most common complaint we hear from the heads of professional services firms (lawyers, accountants, engineers, marketing or PR agencies) is that their people are technically brilliant, but have a serious aversion to business development. Totally und…