netbox/netbox/templates/dcim/interface_edit.html

{% extends 'utilities/obj_edit.html' %}
{% load form_helpers %}

{% block form %}
    <div class="panel panel-default">
        <div class="panel-heading"><strong>Interface</strong></div>
        <div class="panel-body">
            {% render_field form.name %}
            {% render_field form.form_factor %}
            {% render_field form.enabled %}
            {% render_field form.lag %}
            {% render_field form.mac_address %}
            {% render_field form.mtu %}
            {% render_field form.mgmt_only %}
            {% render_field form.description %}
        </div>
    </div>
    <div class="panel panel-default">
        <div class="panel-heading"><strong>802.1Q Encapsulation</strong></div>
        <div class="panel-body">
            {% render_field form.mode %}
            {% render_field form.site %}
            {% render_field form.vlan_group %}
            {% render_field form.untagged_vlan %}
            {% render_field form.tagged_vlans %}
        </div>
    </div>
{% endblock %}