MRB NetBox Topology Views

A customised fork of NetBox Topology Views with extended rack views, interactive cable tracing and additional network icons.

The plugin builds topologies from the devices, ports and cables maintained in NetBox. In addition to the classic topology, this fork provides a complete view of one or more racks including front, rear and cabling.

Plugin name	netbox_topology_views
Package	netbox-topology-views
NetBox	4.7.x
Python	see setup.py
Repository	https://git.mrblake.cc/MrBlake/mrb-netbox-topology-views

Features

• Show one or more racks together
• Render devices at their exact rack unit position
• View front and rear of a rack separately
• Ascending/descending U numbering and custom starting unit are respected automatically
• Detect cross-rack and external cable connections
• Freely move devices in the cable topology
• Sort devices in the cable topology by rack position within each rack
• Browser full-screen mode for the cable topology
• Zoom the cable topology between 50 and 200 % and scroll in full-screen
• Render P2P wireless links and multi-access WLANs as purple dashed radio links
• Optionally show/hide wireless links and power cables in the rack view's cable topology, visually distinct from network cables (purple dashed / orange dotted)
• Store manual positions per rack selection in the browser
• Highlight a device's connections in white on hover
• Show all connected ports and peers of a device
• Show a cable's terminations on hover
• Open devices and cables in NetBox directly from the topology
• Export single racks, all racks or the cable topology as SVG, PNG and draw.io — always with transparent background
• Colours of rack view and export follow the active light or dark mode
• Additional icons for network, leaf, spine and aggregation switches

Changes compared to the original

1. New menu category More views.
2. A rack view with filters for site, location and multiple racks.
3. Position-accurate rack elevations for front and rear.
4. A cable table with A and B terminations.
5. An interactive, movable cable topology below the racks.
6. Hover highlighting and port-to-port tracing for devices and cables.
7. Locally stored device positions and a reset function.
8. An extended, scalable SVG icon set for switch roles.
9. Transparent SVG, PNG and draw.io exports for rack and topology views.
10. Adjustments for NetBox 4.6+, including the changed Rack.units property.

Compatibility

• NetBox 4.7.x (min_version/max_version in netbox_topology_views/__init__.py)
• Based on NetBox Topology Views 4.5.1

Since the upstream release officially targets NetBox 4.5.x, test updates to newer NetBox versions in a staging instance first.

Installation

All paths assume a standard installation under /opt/netbox.

1. Install the package

/opt/netbox/venv/bin/pip install --upgrade --force-reinstall \
  "git+https://git.mrblake.cc/MrBlake/mrb-netbox-topology-views.git@develop"

For reproducible production installs, replace develop with a release tag or a full commit ID.

2. Add the plugin to local_requirements.txt

This makes upgrade.sh reinstall the plugin automatically on every NetBox upgrade:

grep -qxF "git+https://git.mrblake.cc/MrBlake/mrb-netbox-topology-views.git@develop" /opt/netbox/local_requirements.txt \
  || echo "git+https://git.mrblake.cc/MrBlake/mrb-netbox-topology-views.git@develop" | sudo tee -a /opt/netbox/local_requirements.txt

If the repository is private, the NetBox server needs a read-only deploy token or an SSH key. Do not store credentials in local_requirements.txt.

3. Enable the plugin

In /opt/netbox/netbox/netbox/configuration.py:

PLUGINS = [
    "netbox_topology_views",
]

PLUGINS_CONFIG = {
    "netbox_topology_views": {
        "static_image_directory": "netbox_topology_views/img",
        "allow_coordinates_saving": True,
        "always_save_coordinates": False,
    },
}

If other plugins are already configured, add netbox_topology_views to the existing list and dictionary instead of replacing them.

4. Apply migrations, collect static files, restart

cd /opt/netbox/netbox
/opt/netbox/venv/bin/python manage.py migrate netbox_topology_views
/opt/netbox/venv/bin/python manage.py collectstatic --no-input
sudo systemctl restart netbox netbox-rq

After changes to CSS or icons a hard reload in the browser (Ctrl+F5) may be necessary.

Update

/opt/netbox/venv/bin/pip install --upgrade --force-reinstall \
  "git+https://git.mrblake.cc/MrBlake/mrb-netbox-topology-views.git@develop"

cd /opt/netbox/netbox
/opt/netbox/venv/bin/python manage.py migrate netbox_topology_views
/opt/netbox/venv/bin/python manage.py collectstatic --no-input
sudo systemctl restart netbox netbox-rq

--force-reinstall is required because the fork still uses the internal package version 4.5.2.

When NetBox itself is upgraded, upgrade.sh reinstalls the plugin from local_requirements.txt and runs migrations and collectstatic:

sudo /opt/netbox/upgrade.sh
sudo systemctl restart netbox netbox-rq

Uninstall

1. Remove "netbox_topology_views" from PLUGINS and PLUGINS_CONFIG.
2. Remove the line from /opt/netbox/local_requirements.txt.
3. Uninstall the package and restart NetBox:

/opt/netbox/venv/bin/pip uninstall netbox-topology-views
sudo systemctl restart netbox netbox-rq

Usage

Classic topology

Plugins → Topology Views → Topology provides the original, filterable topology view. It supports physical cables, logical connections, neighbour devices, circuit terminations, power feeds, wireless links, coordinate groups, and PNG and XML export.

Rack view

Plugins → Topology Views → More views → Rack view

Select a single rack or several racks via site, location and rack; empty racks can be shown optionally. Devices are rendered according to position, height and rack face. Below the elevations follow:

1. the interactive cable topology, and
2. a table of all involved cables.

In the cable topology, devices can be moved via drag and drop. Hovering a device highlights its cables and lists all connected ports; hovering a cable shows both terminations. A click opens the NetBox object.

The export buttons save a single rack, all displayed racks or the cable topology as SVG, PNG or draw.io, always without background. In the draw.io export, rack frames, devices and labels remain individually editable, and topology cables are real edges that follow the devices.

Positions are stored in the browser's localStorage and apply only to that browser and the specific rack/filter selection.

With Netbox-Utilities installed, partial-width devices are rendered side by side in the rack view.

Device icons

Icons are assigned by device role slug. This fork additionally ships:

Device role slug	Icon file
network-switch	network-switch.svg
leaf-switch	leaf-switch.svg
spine-switch	spine-switch.svg
aggregation-switch	aggregation-switch.svg

Custom images can still be assigned on the Images page. The default path is netbox_topology_views/img within STATIC_ROOT.

Permissions

Classic topology: dcim.view_site, dcim.view_device.

Rack view: dcim.view_rack, dcim.view_device, dcim.view_cable.

Saving classic topology coordinates additionally requires the corresponding permissions on netbox_topology_views.coordinate.

Origin and credits

This project is a fork of the open-source plugin NetBox Topology Views. The original plugin was created by Mattijs Vanhaverbeke. Most of the classic topology view, data models, filters and export functions are based on his work and the contributions to the original project.

This fork is developed independently and is not officially affiliated with the original author or the NetBox project.

License

Like the original, this project is licensed under the Apache License 2.0. Existing copyright, license and attribution notices of the original project are retained.