A LibreNMS plugin to show what switchports that have a specific VLAN active
Copy the WhereIsVLAN directory to your librenms/html/plugins/ directory. In Librenms go to Overview->Plugins->Plugin Admin Click enable on "WhereIsVLAN"
Go to Overview->Plugins->WhereIsVLAN Enter vlan id to search for, you may enter multiple vlans separated by ',' or a range with '-' ex.242,1984-1999 Also you may exclude trunk (tagged) or untagged (access) ports from the result.