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What is a MAC address in a network switch?
How does a network switch learn MAC addresses?
How does a network switch handle dynamic MAC addresses?
Why do network switches need a MAC address table?
How MAC addresses help network switches optimize data transmission?
Why do we need MAC address?
Dec 22, 2023 · A network switch utilizes MAC addresses to facilitate the efficient and targeted transmission of data within a local area network (LAN). By leveraging MAC addresses, switches can intelligently manage the flow of data traffic, ensuring that packets are delivered only to their intended recipients.
Switches have a MAC address table that relates the MAC address to the interface on which the last frame with the source MAC address was seen. The table is used to forward frames to the specific interface for the destination MAC address.
Sep 15, 2018 · Even though if your computer has an IP address, it still needs a MAC address to find other machines on the same network (especially the router/gateway to the rest of the network/internet), since every layer is using underlying layers.
Feb 10, 2023 · It seems that MAC addresses are used to do an IP-MAC mapping inside a switch in a LAN, but it seems redundant since the switch already should know which port leads to which host with a given IP address.
This lesson explains how a switch learns MAC address and why it floods frames when it doesn't know the destination MAC address.
Oct 24, 2014 · Option 1 is already happening. It is not replacing the use of MAC addresses, at least not yet. But some switching hardware can be configured to either use destination MAC address or use destination IP address to chose outgoing interface.
Dec 28, 2023 · A dynamic MAC address, unlike its static counterpart, is not permanently assigned and can change over time. This characteristic can significantly influence how a network switch operates, affecting aspects like data packet forwarding, VLAN configuration, and overall network security.