Main Configuration Screen – Cisco Local Area Networks

Most routers designed for home use will have a mobile device or web-based configuration application; these devices are not designed for interaction through a command line or automation. Figure 11-7 is a screenshot from the TP-Link Deco configuration app running on a mobile device. Figure 11-7 TP-Link Deco Configuration Main Screen Figure 11-7 shows a […]

Which Devices Should Be Wired? – Cisco Local Area Networks

Many users no longer think about wiring network cabling throughout their homes because wireless is so common and easy to deploy. What possible disadvantages are there to skipping the cables and just connecting everything to Wi-Fi? Deciding which devices should be connected through a physical Ethernet cable and which should be connected through Wi-Fi requires […]

Cable Cutting– Cisco Local Area Networks

Many home users no longer use television and video streaming content from cable television providers. Instead, they prefer to draw all their services over a single link running IP. Subscribing to video and other services over an IP-only Internet connection is called cable cutting or cord cutting. While there is still a physical cable, all […]

MODEM– Cisco Local Area Networks

The  MODEM converts the service provider’s longer-distance optical or electrical signals into the typical Ethernet wiring and Wi-Fi connectivity inside the home. Providers generally use one of five methods—forms of last-mile connectivity—to connect from a local facility to a home: • Gigabyte passive optical network (GPON) is a standard for carrying network packets over a […]

The Home Network– Cisco Local Area Networks

Home networks vary from a single unmanaged device providing local Wi-Fi to complex managed networks with multiple virtual networks. Figure 11-2 illustrates a moderately complex home network for discussion. Figure 11-2 Home Network Example A lot is happening in Figure 11-2; the following sections consider parts of the network not considered in previous chapters. Network […]

Building and Campus Networks– Cisco Local Area Networks

Every commercial building—including retail stores, office buildings, gyms, dorms, and schools—has some form of network connectivity. These networks’ complexity varies from “all wireless” access to overhead Category 6A cabling with PoE support for telephone, security, fire detection, and other systems. Figure 11-1 illustrates the basic components of a building network. Figure 11-1 Building a Local […]

Hypertext Transfer Protocol– Cisco Application Transport

Opening a web page almost seems like magic—typing in a single Uniform Resource Locator (URL) results in images, videos, text, and other graphic elements combined into a page within a web browser. The magic under the hood includes • The Hypertext Markup Language (HTML) and Cascading Style Sheets (CSS). These elements describe the content and […]

Type-Length Values– Cisco Application Transport

Fixed-length fields place all the interpretative elements in the protocol specification outside the communications channel. Because of this, fixed-length encoding often uses network resources efficiently; the network does not need to carry any additional information to describe transmitted data. There are, however, two situations where fixed-length encoding is suboptimal: • Carrying a field of rarely […]