Question

A data center engineer is planning software maintenance on a Cisco Nexus switch. In addition to the NX-OS image upgrade, Cisco has released a new EPLD (Electronic Programmable Logic Device) image to address a hardware programming issue on the I/O modules. The engineer wants to understand the operational impact before scheduling the change window. Which statement correctly describes the EPLD upgrade behavior?

Accepted Answer

EPLD upgrades can be disruptive; upgrading the EPLDs on a module typically powers down and reloads that module, interrupting traffic on its interfaces.

Answer

EPLD upgrades are always nondisruptive because they run in parallel with the active NX-OS control plane and never affect data forwarding.

Answer

EPLD images can only be applied through a full ISSU and cannot be upgraded independently of the NX-OS system image.

Answer

EPLD upgrades replace the NX-OS kickstart and system images, so no separate EPLD file is required.