Contents
- 1 What is the function of CRC value that is found in the FCS field of a frame?
- 2 What is the function of the CRC value?
- 3 Which switch method uses the CRC value in a frame?
- 4 Which switching method uses the CRC value in a frame?
- 5 What happens when a switch receives a frame and the calculated CRC?
- 6 What action will occur if a host receives a frame with a destination MAC address of FF FF FF FF FF FF?
What is the function of CRC value that is found in the FCS field of a frame?
Explanation: The CRC value in the FCS field of the received frame is compared to the computed CRC value of that frame, in order to verify the integrity of the frame. If the two values do not match, then the frame is discarded.
What is the function of the CRC value?
A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data. Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents.
What is the function of CRC in a frame?
Cyclic redundancy check (CRC) in CAN frames. CAN data frames and remote frames contain a safeguard based on a CRC polynomial: The transmitter calculates a check sum from the transmitted bits and provides the result within the frame in the CRC field.
What happens when a switch receives a broadcast frame and the calculated CRC value is the same as the value that is in the FCS field?
What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field? The switch drops the frame. The switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error.
Which switch method uses the CRC value in a frame?
Explanation:When the store-and-forward switching method is used, the switch receives the complete frame before forwarding it on to the destination.
Which switching method uses the CRC value in a frame?
What’s the meaning of CRC?
Definition. CRC. Cyclic Redundancy Code. CRC. Chemical Rubber Company (scientific reference publisher)
How is CRC value calculated?
The process of CRC calculation using a shift register is as follow:
- Initialize the register with 0.
- Shift in the input stream bit by bit. If the popped out MSB is a ‘1’, XOR the register value with the generator polynomial.
- If all input bits are handled, the CRC shift register contains the CRC value.
What happens when a switch receives a frame and the calculated CRC?
What action will occur if a host receives a frame with a destination MAC address of FF FF FF FF FF FF?
What action will occur if a host receives a frame with a destination MAC address of FF:FF:FF:FF:FF:FF? The host will process the frame. The host forwards the frame to the router.
What is the function of the CRC value that is found in the FCS field of a frame? to compute the checksum header for the data field in the frame Explain: The CRC value in the FCS field of the received frame is compared to the computed CRC value of that frame, in order to verify the integrity of the frame.
How does cyclic redundancy check ( CRC ) work?
CRC or Cyclic Redundancy Check is a method of detecting accidental changes/errors in communication channel. CRC uses Generator Polynomial which is available on both sender and receiver side.
Which is an example of a generator polynomial in CRC?
CRC uses Generator Polynomial which is available on both sender and receiver side. An example generator polynomial is of the form like x 3 + x + 1. This generator polynomial represents key 1011.