What are the three switch functions?
Address learning, forward/filter decisions, and loop avoidance.
What does the "show mac address-table" do?
The "show mac address-table" shows the forward/filter table on the LAN switch.
What is the main purpose of Spanning Tree Protocol (STP) in a switched LAN?
The main purpose of STP is to prevent switching loops in a network with redundant switched paths.
What are the states of STP?
The blocking state is prevent the use of a looped path. A port in listening state prepares to forward data frames without populating the MAC address table. A port in learning state populates the MAC address table but doesn't forward data frames. A port in forwarding state sends and recieves all data frames on the bridged port. A port in the disabled state is virtually non-operational.
Be familiar with the command "showspanning-tree" and how to determine who the root bridge is.
What command will show you the forward/filter table?
show mac address-table.
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