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

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If you stare at a switch for a while, you can find out who uses the network most by noting which activity indicators flash the most. VLAN is a method of logically separating a LAN and making it look like different networks in one. Physically its one network, but logically they are different networks. This is done by a switch (only when configured to do so). WI-FI Because TCP/IP networks are the most common this is the one that is the most important to understand. are the , they are:” LAN Speed test is a very useful tool for testing your local network speeds. See understanding Home network speeds.

The Wireless router will need to connect to the telephone line, cable or fibre network access point in your home. 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. For example, if your company has 100 employees, and you have wired two Cat-5e cables to each user’s desk, you’ll need at least 200 1 Gb switch ports to support these users. You’ll also need a few extra ports for things like printers and Wi-Fi access points.The following code will enable the Cisco proprietary Rapid Per VLAN Spanning Tree Protocol (PVST) over the open standard of Multiple Spanning Tree Protocol (MSTP). In addition to configuring STP on the switch, you will also configure port 2 on the switch for portfast, which allows the port to immediately transition to forwarding mode. Switch1> enable Having a good understanding of how your network fits together, and works is essential for successful troubleshooting. Questions and Answers Before you allow devices to connect to your home network you should make some basic changes to the default setup parameters of your router. Commonly known as wi-fi network and used to distribute the Internet to multiple devices at home, shop, or office. Access point

Online, offline: When a computer is turned on and can access the network, the computer is When a computer can’t access the network, it’s offline. A computer can be offline for several reasons. The computer can be turned off, the user may have disabled the network connection, the computer may be broken, the cable that connects it to the network can be unplugged, or a wad of gum can be jammed into the disk drive. Wi-Fi is a method of connecting computers to a network without the use of cables, i.e. wireless networking, which involves the use of Wi-Fi-enabled computers, access points, wireless routers, etc. Although this networking model isn’t currently popular it could become more popular with the Internet of things (IOT). Client Server There are various network devices available, and many terminologies used. Let’s find about them the following. RouterCommon connection technologies like Wi-Fi, Bluetooth etc are designed to work using a particular network topology.

Ethernet and Wi-Fi are Data link protocols that are responsible for framing data on the media (cable or wireless). IPv4 has been in use since the start of the Internet, and is deployed across the Internet, and home/corporate networks.A network large enough to require more than one switch may also be large enough to require several distinct types of switches: Ethernet to the cabling and ports system involved in networking. The network cables are referred to as Ethernet cables, and they are used to connect a computer to all other networking devices or for a computer to computer connection. The most common of which is the RJ45 connector. This allowed networks to be aggregated, reducing the number of entries in the IP routing tables, whilst also allowing for greater efficiency in IP route processing. Variable Length Subnet Masking (VLSM) 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.

The solution to this issue came in the form of - Classless Inter-Domain Routing (CIDR) and Variable Length Subnet Masking (VLSM). Both of which are key to modern day subnetting. Classless Inter-Domain Routing (CIDR) Not so easy and fast to setup as it requires running cables. However Homeplug or powerline adapters can be used instead. Because the Wireless Router provides the Wireless access point then you should install it in a central location, if possible, to get the best wireless reception. Shared devices like switches and Wireless access points are network choke points just like traffic lights and roundabouts on a road.User EXEC mode: When you connect to a Cisco device the default configuration mode is user exec mode. With user exec mode you can view the settings on the device but not make any changes. You know you are in User EXEC mode because the IOS prompt displays a “>”. In this tutorial you will learn how you to build and setup a home or small business wireless and wired network, and connect it to the Internet. Router1(config) #access-list 101 permit tcp 192.168.8.0 0.0.0.255 any eq 443 Securing your Cisco network by applying an access control list