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Router & functionality
- 1. Router And it’sfunctionality Name – Mohd Amjad CSB Roll Number 120101138
- 2. •It is aSpecialized computer that connect two or more than two networks Network 1 Network 2 Router
- 3. Internetworking with aRouter IEEE 802.3 Sub-network IEEE 802.5 Sub-network PC-NFS Sub-network Router
- 4. • Router havinga software that allows the router to move the data from one network to another network. • Hardware software. • Routes the packet fastly in comparison of software router.
- 5. • It generatea table to route the packet for it self and that table is called routing table. • With the help of that table it transfer the data packet from one network to another network.
- 6. Router: Network Layer RouterOperate At the 3rd Layer of OSI Model that is Network Layer.
- 7. • Several companiesthat makes the router that are :
- 8. Types of Routing •Routing is a way in which the best path find out by the router to transfer the data packet from one network to another and keep that path in the routing table. • Static (Default) • Dynamic
- 9. Static Routing • Routingtable updating is manual. • Static routing is good for small network infrastructure. • Flexibility is not there. • Admin interfere is high.
- 10. Dynamic Routing • Routingtable updating is Automatic • Dynamic routing is good for mid to large network infrastructure.(more than 5 or more than 5). • Flexibility is there. • Admin interfere is low.
- 11. Router Act asa DHCP • Dynamic host configuration protocol. IP Address IP Address IP Address IP Address
- 12. • This IPaddress configuration can be done by two ways. • Manual • Dynamic or Automatic.
- 14. • DHCP allocateIP address to the network host. • So that they can communicate on an IP network. • It makes Admin work easy. • DHCP is not a Computer. • Router act as a DHCP.
- 15. IP Address IP Address IPAddress
- 16. Router as aDefault Gateway
- 17. Routing Algorithm • TheGoal of a routing algorithm is to create and maintain a routing table, which is the current list of the best ways to reach any other networks or devices reachable by that device. • Routing algorithm is a dynamic Approach. • Set of all optimal routes from: Source to a given destination
- 18. These are thealgorithms we have for Routing • Shortest Path Routing • Distance Vector Routing • Link State Routing • Hierarchical Routing • Broadcast Routing • Multicast Routing • Routing for Mobile Hosts • Routing in Ad Hoc Networks
- 19. There are certainproperties that each algorithm have: 1. Correctness 2. Simplicity 3. Robustness 4. Stability 5. Fairness 6. Optimality
Editor's Notes
- #3Â Router is also called internetworking device. Or we can say network of network. Inter networking means to connect two or more than two network. And Router is a device which establish this internetworking. Although we can connect two network with computers but these router is called software router. Which is designed specifically for routing purpose. Software router is slow in comparison of hardware router.
- #7Â Router works completely based on the logical address. And logical addressing is done on the 3rd layer of OSI model.
- #9Â Static means manual. Dynamic is Automatic.
- #10Â Flexibility means if the path which we have configured has lost than Static routing do not allow the automatic configuration. It follow the path which we have configured whether there may be the optimal path there.
- #12Â Suppose we want to communicate b/w anyone two of these computers. And connect all the computers through a centralized device switch or hub. Now to possible the commnication we have to configure the ip address of each computer. This IP configure by two ways.
- #16Â This router provide the ip address to the devices connected with router and make possible communication one device to another device. Internet service provider provides the ip address to the router so that it can communicate to all the devices.
- #19Â For Ad hoc Network we have DSDV AODV & DSR algorithms.