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We use many different technologies on our wireless networks. In this video, you’ll learn about frequencies, channel bandwidths, service sets, MIMO, and more. << Previous Video: Wireless Standards Next Video: Wireless Encryption >> When working with 802.11 wireless networks, you’ll see a lot of different technologies being thrown around. So let’s step through what some […]

The 802.11 wireless standards have changed the way we network. In this video, you’ll learn about six popular 802.11 standards, speeds, frequencies, and more. << Previous Video: Straight-Through and Crossover Cables Next Video: Wireless Technologies >> When we talk about using a wireless network today, we’re often talking about one that is the IEEE LAN/MAN

The wiring of an Ethernet cable is critical. In this video, you’ll learn about straight-through and crossover cables, and we’ll discuss a common myth regarding 568A and 568B wire colors. << Previous Video: Interface Configurations Next Video: Wireless Standards >> When we’re connecting ethernet devices, we’re commonly using a cable that is a straight-through cable.

A switch configuration requires more than just setting the speed and duplex. In this video, you’ll learn about VLAN configurations, link aggregation, jumbo frames, and more. << Previous Video: Spanning Tree Protocol Next Video: Straight-Through and Crossover Cables >> When you’re configuring an interface on a switch, there are a number of different settings. And

We rely on Spanning Tree Protocol to keep our switched networks loop-free. In this video, you’ll learn about the process that Spanning Tree uses to maintain uptime and availability as our networks change. << Previous Video: VLANs and Trunking Next Video: Interface Configurations >> In an earlier video, we described how IP version 4 has

VLANs are an effective and efficient form of network segmentation. In this video, you’ll learn about VLANs, trunking, and configuring voice and data VLANs. << Previous Video: Network Switching Overview Next Video: Spanning Tree Protocol >> Many network administrators like to segment the network into different broadcast domains. This is sometimes done to allow additional

If you’re going to troubleshoot a network, then you need to understand the basic functionality of an Ethernet switch. In this video, you’ll learn the fundamentals of Ethernet switching, the address resolution protocol, power over Ethernet, and more. << Previous Video: Introduction to Ethernet Next Video: VLANs and Trunking >> The role of a switch

Ethernet is the most popular networking topology in the world. In this video, you’ll learn about the Ethernet frame, MAC addressing, half- and full-duplex communication, and more.  << Previous Video: Routing Technologies Next Video: Network Switching Overview >> Here’s a common network configuration for a SOHO, a Small Office/Home Office. You have an internet connection.

The router is a foundational infrastructure platform for layer 3 networks. In this video, you’ll learn about routing tables, default routes, administrative distances, and more. << Previous Video: Dynamic Routing Next Video: Introduction to Ethernet >> When we send traffic across the internet, that packet is stopping at every router along the way and asking

Many networks and Internet sites rely on dynamic routing protocols to properly connect users to their services. In this video, you’ll learn about distance vector, link-state, and hybrid dynamic routing protocols. << Previous Video: Networked Devices Next Video: Routing Technologies >> We’re surfing around to different websites. We often don’t think about the process it