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.

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 “>”. Smart switches generally are controlled via a cloud service. Your mobile is connected to the cloud service server which in turn connects to your smart switch. A firewall protects your home or small business network computers and devices from intruders on the Internet. Computer networking has its own strange vocabulary. Although you don’t have to know every esoteric networking term, it helps to be acquainted with a few of the basic buzzwords: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. Local, remote: A resource such as a disk drive is local if it resides in your computer. It’s remote if it resides in another computer somewhere else on your network. Switches, routers, and wireless access points are the essential networking basics. Through them, devices connected to your network can communicate with one another and with other networks, like the Internet. Switches, routers, and wireless access points perform very different functions in a network. Switches The following sentence threw me off and I wasn’t able to completely understand what you were trying to say… 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)

Wired networks use Ethernet over UTP cable and tend to be faster than wireless networks, which is an important consideration if you are a gamer. The simple wired home network diagram below shows a minimum setup with a switch and broadband router. LAN Speed test is a very useful tool for testing your local network speeds. See understanding Home network speeds. 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. on: Forces the connection to bring all links up without using a protocol to negotiate connections. This mode can only connect to another device that is also set to on. When using this mode, the switch does not negotiate the link using either PAgP or LACP.Router1(config)# ip route 192.168.5.0 255.255.255.0 192.168.3.2 Managing routing information protocol for Cisco networking

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. When moving around in the Cisco IOS, you will see many prompts. These prompts change as you move from one configuration mode to another. Here is a summary of the major configuration modes:OSI model concept designed to standardize the system of communication between devices in a network. It consists of seven layers. Enhanced Interior Gateway Routing Protocol (EIGRP) is the updated version of IGRP. The following code will enable EIGRP using an autonomous-system (AS) number of 100, distribute two networks and disables auto summary. Router2> enable Early Ethernet networks used a bus structure, modern Ethernet networks and Wi-Fi Networks. use a star bus (hybrid) structure. A -Not any more. Wireless connections are getting more popular. See Internet connection methods for more details.

Having a good understanding of how your network fits together, and works is essential for successful troubleshooting. Questions and AnswersEach of these topologies has advantages and disadvantages this Network topologies article has a really good overview of each topology along with advantages and disadvantages.