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A switch that is using port-based memory buffering receives two incoming frames on the same port The destination port for the first frame that is received is busy How will the switch handle the seco?
The rest of the frames will be held in the incoming queue until the first frame is served.
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.
Which identifies the VLAN to switch each piece of data to where it belongs?
If a switch receives a frame (a piece of data) from a certain port, it will identify that as belonging to a certain VLAN, because each port is assigned a certain port.In a trunk link, additional data is added to each frame (frame tagging), to identify to which VLAN each frame belongs.
When does a switch use frame filtering?
A switch uses frame filtering when it receives a data frame and determines whether to forward or discard it based on the MAC address in the frame's header. This process involves checking the destination MAC address against its MAC address table, which maps connected devices to their respective ports. If the address is found and corresponds to a port, the switch forwards the frame only to that port; if not, it may broadcast the frame out of all ports except the one it came from. This helps to efficiently manage network traffic and minimize collisions.
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.
Which two statements describe the operation of an access layer ethernet switch choose two?
The source MAC address within a frame is used by the switch to associate a port with that MAC address. Frames are directed by the switch from one port to another based on the destination MAC address within the frame.
What happens when a frame from a source MAC address different from 00a8d2e4ba27 reaches switch port 015?
The frame is dropped
What address does a switch build into its table to successfully send data to that device?
A switch builds a MAC address table, which contains the MAC addresses of devices connected to its ports along with the corresponding port numbers. When a switch receives a data frame, it reads the source MAC address and updates its table if the address is not already present. To send data to a specific device, the switch looks up the destination MAC address in its table and forwards the frame out of the appropriate port associated with that address. If the destination address is not found, the switch broadcasts the frame to all ports except the one it received it on.
How an Ethernet switch sends a frame out a single port to a receiver?
The switch learns the MAC address of the device connected to a port during port initialization. It will then send data out the port based upon the destination MAC address as specified the the packet header.
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.
A switch will receive the first 64 bytes of a frame before forwarding?
There are actually three options here. Different switches work differently. (1) The switch forward the frame as soon as it knows the destination address. This gives the lowest latency, but more errors. (2) The switch waits until it receives at least 64 bytes. This avoids fragments of less than 64 bytes being accidentally forwarded. (3) The switch stores the entire frame and then resends it. This allows the switch to check the CRC, and reject bad frames. Whatever method it uses, in any case the switch may have to store frames (buffering) if the outgoing port is busy.There are actually three options here. Different switches work differently. (1) The switch forward the frame as soon as it knows the destination address. This gives the lowest latency, but more errors. (2) The switch waits until it receives at least 64 bytes. This avoids fragments of less than 64 bytes being accidentally forwarded. (3) The switch stores the entire frame and then resends it. This allows the switch to check the CRC, and reject bad frames. Whatever method it uses, in any case the switch may have to store frames (buffering) if the outgoing port is busy.There are actually three options here. Different switches work differently. (1) The switch forward the frame as soon as it knows the destination address. This gives the lowest latency, but more errors. (2) The switch waits until it receives at least 64 bytes. This avoids fragments of less than 64 bytes being accidentally forwarded. (3) The switch stores the entire frame and then resends it. This allows the switch to check the CRC, and reject bad frames. Whatever method it uses, in any case the switch may have to store frames (buffering) if the outgoing port is busy.There are actually three options here. Different switches work differently. (1) The switch forward the frame as soon as it knows the destination address. This gives the lowest latency, but more errors. (2) The switch waits until it receives at least 64 bytes. This avoids fragments of less than 64 bytes being accidentally forwarded. (3) The switch stores the entire frame and then resends it. This allows the switch to check the CRC, and reject bad frames. Whatever method it uses, in any case the switch may have to store frames (buffering) if the outgoing port is busy.
