Advantages Of Using Subnetting

Advantages Of Using SubnettingSubnetting is allowed you to divide one physical internet which is whether a clear up A, B, or C into several smaller logical sub engagements. The main opinion of subnetting is borrowing bits from the host IP extend and using them to create one or to a greater extent ne 2rks within the network. Furthermore, It permits using two or more topical anesthetic area networks (LANs) technology in the same network such as Ethernet and Toking ring (Cisco 2005 PSI 2000).Advantages of using subnettingIt is useful to control and to reduce the network dealing by limiting number of broadcasts.It is allowed any organization to subnet its network without needed to have a new network IP through an internet military service provider (ISP).Subnetting was so helpful to solve the problem of lacking IP addresses on the Internet.Allowing to use two or more LAN technologies in concert in the same network.Subnets also helpful to minimize the size of the routing tables on t he internet since additional network numbers will not being added to the table.When you want to withdraw segments for security reasons such as accounting and sales segment.When you want to isolate bad segments such as domination hosts which use most of the LAN bandwidth (PSI 2000). disfavor Advantages of using subnettingSubnetting decreases the total number of IP addresses in the network but may need buying additional hardware such as a router. So, it may cost lots of money(PSI 2000).It cannot correct the lack of efficiency because companies still assign address block regarding to classes (Kozierok 2005).SupernettingIt is the opposite of subnetting that is allowed you to divide one physical network into several smaller logical networks. On the other hand, Supernetting is allowed you to combine one or more smaller logical network to making one volumed network. It is a part of classless inter domain routing (CIDR) (Wright 1998). In addition, it is apply in routing tables to merge n earby class C (Blank 2002). It is necessary when you need more hosts on the network. So, the main concept of supernetting is borrowed one or more bits from the current network address and using it to produce a large amount of hosts (Inetdaemon). esoteric and Public IP addressesPublic IP AddressIt is an IP address which is able to be seen by the public. Public IP Address allows people admission your computer form everywhere and know about you such as a web server.Private IP AddressesIt is used on a privy network and it is not able to route through the public Internet. It is useful for security reasons. All privet IP addresses are fallen within the following IP address ranges (Syndication 2007)Class A10.0.0.0 through 10.255.255.255Class B172.16.0.0 through 172.31.255.255Class C192.168.0.0 through 192.168.255.2552- Subnetting calculate 192.168.1.40/24IP class / class C marrow usable subnets/networks / 256Total usable IP addresses in each subnets/networks / 254The first 5 subnets/netw orks / 192.168.1.0, 192.168.1.1, 192.168.1.2, 192.168.1.3,192.168.1.410.4.78.21/8IP class / class ATotal usable subnets/ networks / 1677216Total usable IP addresses in each subnet/network / 1677214The first 5 subnets/networks / 10.0.0.0, 10.0.0.1, 10.0.0.2, 10.0.0.3, 10.0.0.410.0.0.9/24IP class / class ATotal usable subnets/networks / 256Total usable IP addresses in each subnets/networks / 254The first 5 subnets/networks- 10.0.0.0, 10.0.0.1, 10.0.0.2, 10.0.0.3, 10.0.0.4203.51.131.23/27IP class / class CTotal usable subnets/ networks / 32Total usable IP addresses in each subnets/networks /30The first 5 subnets/networks-203.51.131.0, 203.51.131.1, 203.51.131.2, 203.51.131.3,203.51.131.4198.110.43.112/26IP class / class CTotal usable subnets/ networks / 64Total usable IP addresses in each subnets/networks / 62The first 5 subnets/networks / 198.110.43.64, 198.110.43.65, 198.110.43.66, 198.110.43.67,198.110.43.683- Static and kinetic routing Static routing manually is configured into th e routing table by configuration file or a network administrator who can access and configure the routers (Inetdaemon2). So, it is called static because it needs person who can create that routing table physically. In addition, it provides control over routing (Balchunas 2007).Advantages of Static RoutingIt reduces the physical hardware overhead.It also minimize the bandwidth overhead (Balchunas 2007).Disadvantages of Static RoutingStatic routing is a manual process so it will not work good with a massive number of routing.It also does not fix any confederacy problem so the router must configured manually to solve any connection bring down (Inetdaemon2).Difficult to configure large network (Balchunas 2007). energising routingDynamic routing automatically is configured by a routing protocol that runs on the routers (Balchunas 2007). Dynamic routing protocols are applications that can find a network destination and then interpret it into the routing table (Inetdaemon2).Advantages of Dynamic RoutingEasy to configure a big networks.Dynamically change to a different route if there is any connection down (Balchunas 2007).Disadvantages of Dynamic RoutingConsuming more bandwidth.It consumes more hardware as well.It chooses the best connection way regarding to the routing protocol not to the routers administrator (Balchunas 2007).Comm simply used dynamic routing tableRIP (Routing Information Protocol).EIGRP (Enhanced Interior Gateway Routing Protocol).OSPF (Open Shortest Path First) (Balchunas 2007).4- The difference between a layer 2 and a layer 3 network deviceThe difference between them is a layer 2 device works sole(prenominal) with MAC addresses to forward network data packets however a layer 3 device works on IP address. Moreover, layer 2 devices are transfer network packets from physical address to physical address but layer 3 devices looking for the best route to transmit data packets. So, layer 2 networks are faster than a layer 3 network because it just needs to forward data to the right destination without make any decision (Simon 2006).Example of layer 2 device and describing it Switch.It is used to connect two local area networks (LAN) or more. It works under OSI (Open System Interconnection Reference) model Layer 2. Furthermore, It usually has multiple ports to connect devices together or to connect two or more local area networks (LAN). it receives data and forwards it depending on the destination MAC (Media Access Control) address to only destination that should receive it . Moreover, It only sends data within the same subnet as well (Maufer).Example of layer 3 device and describing it Router.Router is used to connect two wide area networks (WAN). It works at OSI (Open System Interconnection Reference) model Layer 3. Furthermore, It forwards data depending on the destination network address to only destination that should receive it as well (Maufer).