Description: A routing loop is a situation where a data packet is continuously transmitted within a network without reaching its destination. This phenomenon occurs when there is an error in the network routing configuration, causing packets to be sent from one router to another without being able to find their correct path. Routing loops can cause congestion in the network, as packets unnecessarily occupy bandwidth and can lead to resource saturation. This problem is especially critical in large and complex networks, where multiple routers are interconnected. To mitigate routing loops, advanced routing protocols use techniques such as ‘Split Horizon’, ‘Route Poisoning’, and ‘Hold-Down Timers’. These techniques help ensure that routes are updated efficiently and that packets do not get trapped in an endless cycle. In general routing protocols, mechanisms are implemented to prevent loops by ensuring that each packet has a unique path to its destination. In summary, routing loops are a significant challenge in network management, and understanding them is essential for maintaining the efficiency and stability of communications in modern network environments.