Mobile Assignment Example | Topics and Well Written Essays - 1250 words

Mobile - Assignment Example l use of IP in IP tunneling is forwarding of IP multicast traffic from one area of intranet to another area of intranet, across the portion of intranet that does not support multicast forwarding or routing . After IP-in-IP interfaces are created and added as an IP routing interface, you must configure the tunnel endpoints. In other words it is used to make a tunnel between the two routers. (1)The route is discovered through initiation of route discovery and broadcast of request and this is followed by accumulation of address of the devices between the source and destination. A flow id option is used to transfer packets on a hop to hop basis. Route Reply is used for confirmation. (iii). Route error packet is sent back to host and Route discovery is setup again through broadcast of route request. In case of route error, the hop in error is removed from the host’s route cache; an end to end and hop by hop acknowledgement can be adopted to avoid further loss in communication Hidden terminal is a phenomenon where the nodes are in non line of sight contact and are connected through an Access point .Its implications can be in form of packet loss, collision between them, decrease in overall throughput. It also results in difficulty in transmission at Data link layer where MAC is operational CSMA/CA stands for Carrier Sense Multiple Access/Collision Avoidance and it monitors the activity before transmission and if channel is found busy, it delays sending packet to destination until vacant. In CSMA/CA as soon as the packet is received, the channel is checked for availability, if the channel is clear, node is sent to destination, otherwise, packet is kept in waiting for a duration that is termed as back off factor. As soon as vacant slot is traced, the packet is sent along the destination. When two devices try accessing the channel simultaneously, a set of rules are used for this purpose to determine the devices activities. CSMA/CA uses Broadcast technique to inform