What is the size of packet?

The size of a packet can vary depending on the protocol being used. For example, in Ethernet networks, the maximum packet size, known as the Maximum Transmission Unit (MTU), is typically 1500 bytes. In contrast, IP packets can theoretically be up to 65,535 bytes, but practical limits are often lower due to various network constraints. It's important to consider these limits to avoid fragmentation and ensure efficient data transmission.