RoutersSlide 2What is the purpose?Different types of routers.Static RoutersDynamic RoutersWhy do we need them?Wireless RoutersADSL Wireless RoutersBroadband Wireless RoutersDifference between 11Mbps, 54Mbps and 108Mbps Wireless Speeds54Mbps or 802.11g108Mbps or Super GRoutersRoutersRouters are both hardware and software devices. They can be cards that plug into a collapsed backbone, stand-alone devices (rack mount or desktop) or software that would run on a file server with 2 NICs. Routers are not aware of the type of medium or frame that is being used (Ethernet, Token Ring, FDDI, X.25, etc.)What is the purpose?The purpose of a router is to connect nodes across an Internet workA router is a general purpose device that is used to segment a Network, with the goal of limiting broadcast traffic and providing Security, Control, and Redundant paths. It is a device that inter-connects multiple LANs at the network layer and has access to network addresses, and it operates with respect to protocolsDifferent types of routers.There are basically 2 types of routers.1. Static routers2. Dynamic routerStatic RoutersIn this type the system administrator is defining the shortest path in the network.In static routers, system administrator is giving the shortest path by giving some commands. Static router is not so efficient than dynamic routing. static routing have some limitations and used in the relativelyDynamic RoutersIn the dynamic routing the router can define the shortest path by itself between the nodes.Dynamic routing is the clever type of routing and normally used in lot of places in the world while routing. In this type the router is programmed in such a way that router itself is taking the shortest path and system administrator does not have to do any thing. It saves time and cost.Why do we need them?Routers are specialized computers that send your messages and those of every other Internet user speeding to their destinations along thousands of pathways.Wireless RoutersWireless Routers combine the features of a router with the unique freedom offered by wireless in one simple package giving you the freedom to share your broadband connection to both wireless and wired computers.ADSL Wireless Routers can only be used on all BT ADSL Broadband Service via copper telephone lines - All UK and Channel Islands ISP's are compatible (excluding AOL, who use their own proprietary authentication methods). Wireless ADSL Routers are five products in one - a high-performance ADSL modem, Ethernet Switch, Router, 54Mbps 802.11g wireless access point, and True Stateful Packet Inspection Firewall.Broadband Wireless Routers Wireless Cable/DSL Routers are similar to ADSL Wireless routers expect they don't have built-in modems and are mainly used with Cable Modem broadband where the Ethernet modem is supplied by your ISP. They must be fed the internet connection via EthernetDifference between 11Mbps, 54Mbps and 108Mbps Wireless Speeds11Mbp or 802.11b is the current industry standard. It provides a cost-effective path for home users looking to access their Broadband connection wirelessly. 802.11b runs on the 2.4GHz frequency and is capable of going though 2-3 brick walls and 3-4 plasterboard walls.54Mbps or 802.11g54Mbps or 802.11g is the next generation wireless standard. It’s backwards compatible with 11Mbps yet it can be up to five times faster than 11Mbps when used with 54Mbps wireless clients. High speed wireless is ideal for transferring large files locally between computer, videoconference, and distribute and play high-quality digital movies, photos, and MP3s. One of the main benefits of 802.11g is that its incorporating the latest wireless security (WPA) standards prevent ear-droppers from accessing your wireless network. 802.11g runs on 2.4GHz and is capable of going though 2-3 brick walls and 3-4 plasterboard walls.108Mbps or Super G108Mbps or Super G is a special 802.11g specification that has a throughput up to ten times faster than 802.11b. Super G wireless networking solutions are designed to support the bandwidth-intensive entertainment applications of the next generation connected home while incorporating all the latest features like WDS (Wireless Distribution System). Super G runs on 2.4GHz and might be capable of going though 3-4 brick walls and 4-5 plasterboard wall due to new antenna
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