What is a summary route? In the context of static routing, how are summary routes useful?

Question

In Linux we can set it through Iperf, but is there any other option?
And what about windows machine?

Answer 1

Route summarization, also called route aggregation, is a method of minimizing the number of routing tables in an IP (Internet Protocol) network. It works by consolidating selected multiple routes into a single route advertisement, in contrast to flat routing in which every routing table contains a unique entry for each route

Route summarization, also called route aggregation, is a method of minimizing the number of routing tables in an IP (Internet Protocol) network. It works by consolidating selected multiple routes into a single route advertisement, in contrast to flat routing in which every routing table contains a unique entry for each route.

Route summarization offers several important advantages over flat routing. Route summarization can minimize the latency in a complex network, especially when many routers are involved. Because of the reduced number of routing entries, the overhead for routing protocols is minimized. Network stability can be improved by reducing or eliminating unnecessary routing updates after part of the network undergoes a change in topology. Route summarization also greatly reduces processor workloads, memory requirements and bandwidth demand.

To implement route summarization in IP Version 4 (IPv4), Classless Inter-Domain Routing (CIDR) must be used.