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What addresses is used as a destination address for an Ethernet broadcast frame?
255.255.255.255
A switch receives a frame with a destination MAC address that is currently not in the MAC table What action does the switch perform?
It duplicates the frame to all Ethernet ports, except the port it came from. A switch's MAC table is built not from destination addresses it receives, but by the source MAC addresses. So the frame is broadcast throughout the broadcast domain, until the end device with a matching MAC address responds to the broadcast, thus giving the switch a new source address to add to its MAC table.
What action will a router take when it receives a frame with a broadcast MAC address?
It will not forward the frame to another network
What is the example of packet switching network?
IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...
What is layer 2 switching?
This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.
What does a layer 2 switch use to decide where to forward a received frame?
A layer 2 switch uses the MAC address to determine which port to switch the frame out of.
When would a LAN switch use flooding to forward a frame?
mashallah
What is broadcast frame?
a picture frame with broadcast written in it
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.
How does the switch learn the Mac address?
Each Ethernet frame sent from one computer to another includes the source and the destionation MAC addresses. It is from these addresses that the switch learns what device is connected to the port. At first, the switch won't know the destination address; in that case, it will broadcast the frame through all of its ports. But soon it learns this information. It is also possible, in some switches, to add the MAC address through configuration commands.
What information in an Ethernet frame is used by a Layer 2 switch to build its address table?
Source MAC-address
How will a broadcast frame that is sent by a host PC be handled on the net?
The broadcast will be received by all devices in the same network, but will not be forwarded outside the network (routers do not forward broadcast messages). So for the Internet, for example, you do not see broadcast packets.
