Feature #3: Minimum Hops
Explore the concept of minimum hops required to transmit a packet from the first to the last router in a linear chain network. Understand how TTL values affect packet reachability and learn an efficient algorithm to determine the fewest necessary transmissions. This lesson enhances practical skills in network problem-solving and algorithm implementation.
We'll cover the following...
Description
We have created a linear network topology by placing routers in a straight chain. Each router has a specific TTL (Time To Live) value associated with it.
Hence, a router is able to send a packet to a downstream neighbor at most h[i] hops away (you may think of this as one to the right). Here, h[i] denotes the TTL value of the ith router.
A packet has arrived at the first router, h[0], and it needs to be sent to the last router in the chain. You want to get the packet to the destination in the fewest possible transmissions, which means using the fewest possible intermediate routers.
We’ll be provided with an array containing the
TTL values of each router. The router’s position in the chain will be denoted by array indexes. For example, the TTL of the first router in the chain is at index 0 of the input array, the second router is at index 1, and so on. We have to ...