What are three common reasons for ATM CRC errors? (Choose three.)
A.
Incorrect VPI and VCI configuration
B.
Noise, gain hits, or other transmission problems on the data link equipment
C.
ATM cells are dropped due to incorrect ATM routing in the service provider.
D.
A faulty or failing ATM interface.
E.
Cells are dropped due to traffic policing in the ATM cloud on one or more virtual circuits
attached to the ATM interface.
Explanation:
Reasons for ATM CRC Errors
The following are some potential reasons for ATM CRC errors:
Dropped cells due to traffic policing in the ATM cloud on one or more VCs attached to the ATM
interface.
Noise, gain hits, or other transmission problems on the data-link equipment.
A faulty or failing ATM interface.
The show interfaces command output displays the CRC error count. These errors suggest that
when the SAR reassembles the packet and checks the CRC, the calculated CRC value does not
match the value in the assembled packet’s CRC field.