Cisco Certified Network Professional 2025 – 400 Free Practice Questions to Pass the Exam

Using the command that enables EtherChannel guard misconfiguration protection is essential in maintaining network stability and preventing disruptions that may arise from incorrect EtherChannel configurations. By executing the specified command, you instruct the spanning tree protocol to monitor and protect against any potential misconfigurations that could occur when adding or configuring EtherChannels on network switches.

When enabled, this feature places the EtherChannel into the "err-disabled" state if a configuration mismatch is detected. This effectively prevents forwarding traffic on the misconfigured EtherChannel, safeguarding the overall network topology from issues that could arise due to inconsistencies between link partners.

In this context, it's important to understand the roles of the other options. While commands such as "show etherchannel port" and "channel-group number mode" are useful for monitoring and defining the parameters of the EtherChannel, they do not provide the same level of protection against configuration errors. Additionally, the general "spanning-tree guard misconfig" command is related but does not specifically focus on EtherChannel settings, instead applying more broadly to prevent issues with other spanning-tree configurations.

Thus, enabling the EtherChannel guard misconfiguration feature directly combines prevention with proactive management of EtherChannel configurations, making it a crucial safeguard within a network environment.