The network port show command displays information about network ports. The command output indicates any inactive links, and lists the reason for the inactive status.

Some parameters can have "administrative" and "operational" values. The administrative setting is the preferred value for that parameter, which is set when the port is created or modified. The operational value is the actual current value of that parameter. For example, if the network is underperforming due to network problems, the operational speed value can be lower than the administrative setting.

If the operational duplex mode and speed of a port cannot be determined (for instance, if the link is down), that port’s status is listed as undef , meaning undefined.