ation is missing.</p></li><li><p><strong>Source Principal</strong>: This identifies the peer principal of the traffic source.
It is set when peer authentication is used.</p></li><li><p><strong>Source App</strong>: This identifies the source application based on <code>app</code> label
of the source workload, or &ldquo;unknown&rdquo; if the source information is missing.</p></li><li><p><strong>Source Version</strong>: This identifies the version of the source workload, or
&ldquo;unknown&rdquo; if the source i