What is the difference between uplink and downlink in switch?

In satellite communication, the uplink frequency is higher than the downlink frequency because the attenuation level increase with an increase in frequency . The power at the ground station (Base Station) is more than compared to the power available at the satellite.

Pertaining to radiocommunication service, an uplink (UL or U/L) is the portion of a feeder link used for the transmission of signals from an earth station to a space radio station, space radio system or high altitude platform station .

Based on different functions and configurations, network switch ports have two main categories: uplink port and normal port (downlink port). The uplink port on switch is usually a higher-speed port used to connect a device to other higher-speed ones in the topology or smaller local network to a larger network .

In satellite telecommunication, a downlink is the link from a satellite down to one or more ground stations or receivers, and an uplink is the link from a ground station up to a satellite .