Ethernet commonly used terms

Understand the terms that are used in reference to Ethernet networking.

The following terms are some common items that are referred to from time to time. Some of the terms defined can be used to represent multiple meanings. The terms and definitions used here are meant to specifically represent Ethernet networking technology, related information, and devices.

link partner
Start of changeThe 10BASE-T, 100BASE-TX, 1000BASE-T, 1000BASE-SX, 10GBASE-LR, or 10GBASE-SR connection that is established between the adapter card and the hub or switch port to which it is connected. The line speed and duplex characteristics of this link can be different from other connections in the network.End of change
hub
A half duplex device that sums all of its inputs and then broadcasts that sum on all outputs to all connected adapters. The hub has a large collision domain and shared media.
switch
A half or full duplex device that learns which devices are attached at each port and passes only frames addressed to those devices on that port. The switch has a small collision domain.