Which two statements describe the process of performing an EPLD upgrade on a Cisco MDS 9000 Series Switch? (Choose two.)
Click on the arrows to vote for the correct answer
A. B. C. D. E.AB.
An EPLD (Electrically Programmable Logic Device) upgrade is a process of updating the firmware of the hardware components of a Cisco MDS 9000 Series Switch. The EPLD firmware controls the functionality and performance of the hardware components, such as line cards, supervisor engines, and power supplies. Here are the two statements that describe the process of performing an EPLD upgrade on a Cisco MDS 9000 Series Switch:
A. The upgrade is performed from the standby supervisor module: During the EPLD upgrade process, the active supervisor module remains active, and the upgrade is performed on the standby supervisor module. This ensures that the switch remains operational during the upgrade process and avoids any disruption to the network traffic. Once the upgrade is completed on the standby supervisor, the roles of the active and standby supervisor modules are swapped, and the newly upgraded module becomes the active supervisor.
C. The upgrade is performed on the active supervisor: This statement is incorrect as mentioned above. The upgrade is performed on the standby supervisor module, not the active supervisor module.
B. The upgrade process disrupts only the module that is being upgraded: This statement is partially correct. During the EPLD upgrade process, the module being upgraded will experience a brief disruption in traffic flow as the module is reset, but the remaining modules in the switch will continue to forward traffic without interruption.
D. If an upgrade is interrupted, the upgrade continues after a connection is restored: This statement is incorrect. If the upgrade process is interrupted, the EPLD upgrade will fail, and the system will revert to the previous EPLD version. A new upgrade process needs to be initiated to complete the upgrade.
E. Modules must be online to be upgraded: This statement is correct. The modules that need to be upgraded must be online and operational. If a module is offline, the upgrade process will fail for that module, and the system will revert to the previous EPLD version for that module.
In summary, during an EPLD upgrade on a Cisco MDS 9000 Series Switch, the upgrade is performed on the standby supervisor module, and the upgrade process disrupts only the module that is being upgraded. The modules that need to be upgraded must be online and operational, and if the upgrade process is interrupted, the EPLD upgrade will fail, and the system will revert to the previous EPLD version.