Summary

We can summarize this chapter with the following points:

• Switch, an OSI Layer 2 device, is used to connect computers and extend networks.
• Switch uses physical addresses, known as MAC addresses, to make forwarding decisions.
• Switch learns MAC addresses dynamically, as they enter the switch.
• Switch does frame filtering by forwarding the frames to only the switch ports that should receive the frames.
• Flooding helps switch learn MAC addresses.
• The ports where the frames enter the switch are called incoming ports.
• The ports where the frames exit the switch are called outgoing ports.
• Ingress represents a frame entering a switch on a specific port.
• Egress represents a frame leaving a switch through a particular port.
• The source MAC address is the physical address of the network interface of a device that is sending frames.
• The destination MAC address is the physical address...