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For questions about network switches, the term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model.
2
votes
Collision domain in full duplex mode switch
For
example, consider the link from the switch to PC3. Physically, no
collision could possibly occur. … However, if PC3 and the LAN switch
both enabled half-duplex, which uses CSMA/CD, they would consider
their frames to collide if they were sent and received at the same
time. …