Role of Hosts and Routers in Fault Isolation
The hosts and the routers work together to perform two main functions in data transmission: fault isolation and fault recovery. These are accomplished using ICMP. Fault isolation is the process of finding out the problem in the network due to which data transmission is hindered. Fault recovery is the process of finding a solution to the problem.
→ To know more about routers and other intermediate devices, see “Intermediate Devices,” p. 13
Every router on an internetwork stores the details about the status of the other routers on the network. Routers, being smart devices, can choose the best route in which a data packet can be sent. This functionality is implemented by virtue of having ...