netbox/netbox/templates/dcim/inc/_device_header.html

<div class="row">
    <div class="col-md-9">
    {% if device.rack %}
        <ol class="breadcrumb">
            <li><a href="{% url 'dcim:site' slug=device.rack.site.slug %}">{{ device.rack.site }}</a></li>
            <li><a href="{% url 'dcim:rack_list' %}?site={{ device.rack.site.slug }}">Racks</a></li>
            <li><a href="{% url 'dcim:rack' pk=device.rack.pk %}">{{ device.rack }}</a></li>
            {% if device.parent_bay %}
                <li><a href="{% url 'dcim:device' pk=device.parent_bay.device.pk %}">{{ device.parent_bay.device }}</a></li>
                <li>{{ device.parent_bay.name }}</li>
            {% endif %}
            <li>{{ device }}</li>
        </ol>
    {% endif %}
    </div>
    <div class="col-md-3">
        <form action="{% url 'dcim:device_list' %}" method="get">
            <div class="input-group">
                <input type="text" name="q" class="form-control" placeholder="Device name or serial" />
                <span class="input-group-btn">
                    <button type="submit" class="btn btn-primary">
                        <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
                    </button>
                </span>
            </div>
        </form>
    </div>
</div>
<div class="pull-right">
    {% if perms.dcim.change_device %}
		<a href="{% url 'dcim:device_edit' pk=device.pk %}" class="btn btn-warning">
			<span class="glyphicon glyphicon-pencil" aria-hidden="true"></span>
			Edit this device
		</a>
    {% endif %}
    {% if perms.dcim.delete_device %}
		<a href="{% url 'dcim:device_delete' pk=device.pk %}" class="btn btn-danger">
			<span class="glyphicon glyphicon-trash" aria-hidden="true"></span>
			Delete this device
		</a>
{% endif %}
</div>
<h1>{{ device }}</h1>
<ul class="nav nav-tabs" style="margin-bottom: 20px">
    <li role="presentation"{% if active_tab == 'info' %} class="active"{% endif %}><a href="{% url 'dcim:device' pk=device.pk %}">Info</a></li>
    <li role="presentation"{% if active_tab == 'inventory' %} class="active"{% endif %}><a href="{% url 'dcim:device_inventory' pk=device.pk %}">Inventory</a></li>
    {% if device.status %}
        <li role="presentation"{% if active_tab == 'lldp-neighbors' %} class="active"{% endif %}><a href="{% url 'dcim:device_lldp_neighbors' pk=device.pk %}">LLDP Neighbors</a></li>
    {% endif %}
</ul>