Description: The maximum transmission unit (MTU) is a crucial parameter in network configuration that defines the largest size of a data packet that can be transmitted over a network interface. This size is measured in bytes and is essential for optimizing communication efficiency in networks. An appropriate MTU ensures that data is transmitted without fragmentation, which can cause delays and increase the load on the network. In the context of routing protocols used in IP networks, the MTU plays an important role in forming adjacencies between routers. If the MTUs of the routers’ interfaces do not match, communication issues may arise, as packets may be fragmented or even discarded. Therefore, it is essential for network administrators to correctly configure the MTU on each interface to ensure optimal performance and smooth communication between devices. Additionally, the MTU can vary depending on the type of network and technology used, such as Ethernet, PPP, or Frame Relay, which requires special attention when designing and maintaining network infrastructure.
