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Why do switch ports have MAC addresses?
Switches need to keep track of the MAC addresses of all connected devices. Without the learning function, the switch would not know to which port the destination device is connected. At the center of the learning function is a part of the switch’s memory. We refer to this memory location as the MAC Address Table.
Does every router port have a MAC address?
Just to clairify something every network adapter has its own MAC address so the if the router has four LAN ports, one WAN port and Wireless it has six MAC addresses. You never need to know any of them unless you are filters by MAC address.
What is the MAC address of a layer 2 switch?
However, it is important to note that most Layer 2 switches flood all multicast traffic that falls within the MAC address range of 0x0100.5E00.00xx (which corresponds to Layer 3 addresses in the Link-Local block) to all ports on the switch even if IGMP Snooping is enabled.
What do you need to know about layer 2 switching?
Layer 2 switching. January 26, 2016January 19, 2019. Layer 2 switching (or Data Link layer switching) is the process of using devices’ MAC addresses on a LAN to segment a network. Switches and bridges are used for Layer 2 switching. They break up one large collision domain into multiple smaller ones.
How does port switching work on a Mac?
Port switching implies that each port on the switching hub is directly connected to an individual device. This makes the port and the device their own self-contained media access domain. All of the devices in the network still remain part of the same MAC broadcast domain.
How many Macs are on a Cisco switch?
This isn’t necessarily a MAC assigned to a switch, but a MAC addresses assigned to a port because a host machine is behind it. On some switches you will see 64 MACs and or 1024. I believe that means you can have up to 64 mac assigned to intelligent devices on the switch such as port channels and SVI interfaces.