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What is QoS (Quality of Service)
What is QoS? One of the key aspects that must be considered when designing Enterprise Campus solutions is Quality of Service (QoS). There are many different categories of the QoS approach, including: Shaping Policing Congestion management Congestion avoidance Link efficiency mechanisms QoS involves a wide variety of techniques, especially in networks that offer multimedia services…
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Network Design – Designing Advanced IP Addressing
This blog post covers the following network design topics: Summarizable and structured addressing designs IPv6 for Enterprise Campus design considerations https://youtu.be/UcV1JaT0FZc When designing IP addressing at a professional level, several issues must be taken into consideration. This blog post will cover generic IP addressing designs, including subnets and summarizable blocks design recommendations, address planning, and…
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Understanding Power over Ethernet (PoE)
Understanding Power over Ethernet (PoE) Power over Ethernet (PoE) is a technology that allows switches to pass electrical power along with data on Ethernet cables. This is usually done on the four extra wires in UTP cables, the ones that are not used for data transmission. PoE is generally used to power up non-critical network…
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Optical Networking
Optical Networking Various optical link technologies are used in large enterprise infrastructures to assure some kind of connectivity. Some of the optical networking techniques include SONET/SDH, CWDM, DWDM, and RPR. We cover many networking technologies in our CompTIA Network+ certification course. Synchronous Optical Network and Synchronous Digital Hierarchy Synchronous Optical Network (SONET) and Synchronous Digital…
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Layer 1 2 3 and 4 Switching
Internetwork Switching Methods In telecommunications terminology, a switch is a device that forwards incoming data from any of multiple input ports to a specific output port that will take the data toward its destination. Although the most common form of switching is Layer 2 switching, it is important to know that switching can also be…
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