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When would a LAN switch use flooding to forward a frame?
mashallah
What are the functions that enable a switch to forward Ethernet frames in a lan?
A switch forwards Ethernet frames in a LAN primarily through two functions: MAC address learning and frame forwarding. It maintains a MAC address table by learning the source MAC addresses of incoming frames and associating them with the corresponding switch ports. When a frame is received, the switch looks up the destination MAC address in its table to determine the appropriate port to forward the frame, ensuring efficient data transmission within the network. If the destination MAC is unknown, the switch will broadcast the frame to all ports except the one it originated from.
How does a switch use store and forward?
In store-and-forward switching, the switch receives an entire data frame before forwarding it to the next hop in the network. This allows the switch to perform error checking on the entire frame before forwarding it, ensuring data integrity. The switch stores the frame temporarily in its memory, checks for errors, and then forwards it based on its destination address.
Why does a switch flood a frame?
A switch floods a frame when it doesn't have the destination MAC address in its MAC address table. The frame is then forwarded out of all interfaces except the one it was received on in an attempt to find the correct host.
What is accurate about fast-forward switching?
The switch stores the first 64 bytes of the frame before forwarding.
What does a switch store in its switching table?
The destination mac addressof a frame and the port it was received on.
A switch received a frame with a destination mac address that is currently not in the mac table what action does the switch performs?
It will broadcast to every port in the vlan.
In what mode does a switch read the entire data frame into its memory and checks it for accuracy before transmitting the information?
Store and forward mode
Which switch forwarding method should be used on network that employs frame classification based on an assigned quality of service value?
store-and-forward
What switch them based on in this mode reads the entire data frame into its memory and checks it for accuracy before transmitting the information?
Store-and-forward mode.
What is A switching mode in which a switch reads a frame's header and decides where to forward the data before it receives the entire packet?
Cut-through mode.
What processes does a switch follow before it forwards a frame in store and forward mode?
it receives the complete frame it reads the source and destination addresses it preforms a cyclic redundancy check it applies the relevant filters.
