Packets and Frames

In computer networking, a packet is a unit of data that is routed between an origin and a destination on the internet. A packet contains two types of information: control information, which contains the source and destination addresses, and payload data, which contains the actual data being sent.

On the other hand, a frame is a unit of data that is used for data transmission between two devices on the same network. A frame contains the destination and source MAC addresses, as well as other control information, such as error detection and flow control information. The payload of a frame is the packet that is being sent.

Therefore, the main difference between a packet and a frame is their level of abstraction. A packet is a higher-level concept that contains payload data and routing information, while a frame is a lower-level concept that contains control information and payload data that is being transmitted on a specific network.