Switching Basiccs

Switch Forwarding

The process where a switch receives frames on an interface, determines the destination based on MAC address, and forwards them out the appropriate interface.

MAC Address Table

A table in a switch that stores MAC addresses of devices connected to its interfaces, helping in forwarding frames to the correct destination.

Store-and-Forward

A switching method where the switch receives the entire frame, checks for errors, and then forwards it. Preferred by Cisco.

Cut-Through Switching

A switching method where the switch forwards frames immediately after reading the destination MAC address, without error checking.

Collision Domains

Network segments where devices contend to send/receive data, with switches creating separate collision domains for each port.

Broadcast Domains

The area of a network where a broadcast frame can be heard, with switches forwarding broadcast frames to all ports except the incoming one.

Full-Duplex

Communication mode where both devices can send and receive simultaneously, enhancing network efficiency.

Auto-MDIX

Automatic feature in switches that eliminates the need for crossover cables by adjusting the interface configuration based on the connected devices.

Switch Boot Sequence

The process a switch follows during startup, including POST, loading boot loader software, and initializing the operating system.

Secure Shell (SSH)

A secure, encrypted method for remote device management, providing a safer alternative to Telnet for managing switches.