Networking For Dummies, 11th Edition (For Dummies (Computer/Tech))

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IPv4 is the most commonly used. It is written as a set of 12 numbers separated by dots in three(s), e.g., 192.168.231.254 or it can be written shorter if the first number is zero, i.e., 010.002.001.001 can be written as 10.2.1.1 When designing networks and choosing connection protocols having an understanding of these topologies is important. Note a new technology that uses mains cable overcomes many of these disadvantages. powerline networking is common on home/small office networks A home network will have between 1 and 20 devices and a corporate network will have many thousands. Switches allow devices on your network to communicate with each other, as well as with other networks, creating a network of shared resources. Through information sharing and resource allocation, switches save money and increase productivity.

So if the internet goes down there is no connection from your mobile to the smart switch unless the switch allows local access and that depends on the switch itself. The networking of a home or a small building is known as a SOHO LAN (Meaning Small Home Office Local Area Network). In this type of networking, there are usually few computers and other network devices, e.g., switches and routers involved (details about the devices are explained below). In Cisco devices, Ethernet ports on a router or switch are known as fast ethernet ports, most of which are denoted by letters and numbers according to how they arranged. For instance, the first ethernet port on a router is labeled Fa0/0, while that of a switch is Fa0/1. Access switches: An access switch is a switch that typically has a large number of 1 Gigabit (Gb) ports whose job is to connect individual devices such as computers and printers to the network. Tks for pointing that out. I had to read it several times to understand what it meant. It refers to the TCP/IP model being the most important one to understand.Your network design may end up with a total of five 48-port access switches, providing a total of 240 1 Gb ports to support the 100 users. There are many different ways network nodes can be connected together. This isn’t normally a consideration in small networks but has networks get larger it becomes more important. Computers, as we now know, apply to all fields of endeavors, be it agriculture, education, medicine, technology, transportation, and so on. Therefore, there is an obvious need for an organization to have an inter-network of its computers to further aid data sharing and retrieval, and efficient management and use of computing resources.

The most common type of wireless network system, centralized deployments are traditionally used in campuses where buildings and networks are in close proximity. This deployment consolidates the wireless network, which makes upgrades easier andfacilitates advanced wireless functionality. Controllers are based on-premises and are installed in a centralized location.A managed on-premises switch lets you configure and monitor your LAN, giving you tighter control of your network traffic. The network you have at home uses the same networking technologies, protocols and services that are used in large corporate networks and on the Internet. Global Configuration mode: Global Configuration mode is where you go to make global changes to the router such as the hostname. To navigate to Global Configuration mode from Privileged EXEC mode you type “configure terminal” or “conf t” where you will be placed at the “(config)#” prompt. Because TCP/IP networks are the most common the TCP/IP model is the most important one to understand. The levels are: If you want to configure either a router or switch to retrieve its IP configuration information from a network Dynamic Host Configuration Protocol (DHCP) server, then you can commands like the following example. Router1> enable