Network administrators use tools to simplify routing tables by summarizing multiple network routes into a single, more concise entry. For example, instead of listing individual routes for 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24, a summarized route of 192.168.0.0/22 might be used. This process typically involves the use of a subnet mask to define the range of addresses included in the summary.
Summarization offers substantial benefits in terms of routing table efficiency and network stability. Smaller routing tables require less memory and processing power on routers, leading to faster convergence times and improved overall network performance. Historically, this process was performed manually, requiring careful calculations and subnet mask manipulation. The advent of automated tools has streamlined this process, reducing the risk of human error and making network management more efficient.
