Creating Physical or BGP Topology Graphs

netlab graph command creates a graph description in Graphviz or D2 format from the transformed lab topology data (usually stored in netlab.snapshot.yml) created by netlab create command. It’s replicating the functionality of netlab create -o graph:name command with a more convenient user interface.

Note

You will have to install Graphviz or D2 and use them to create the actual graphs in PNG/JPEG/PDF format.

Usage

usage: netlab graph [-h] [-t {topology,bgp}] [-e {graphviz,d2}] [-i INSTANCE]
                    [--snapshot [SNAPSHOT]]
                    [output]

Create a graph description in Graphviz or D2 format

positional arguments:
  output                Optional: Output file name

options:
  -h, --help            show this help message and exit
  -t {topology,bgp}, --type {topology,bgp}
                        Graph type
  -e {graphviz,d2}, --engine {graphviz,d2}
                        Graphing engine
  -i INSTANCE, --instance INSTANCE
                        Specify lab instance to create a graph from
  --snapshot [SNAPSHOT]
                        Transformed topology snapshot file

Tip

When executed with the --instance option, ‌netlab graph creates the graph description file in the lab directory.

Examples

• netlab graph creates lab topology graph in Graphviz format

• netlab graph -e d2 -t bgp creates a graph of BGP sessions in D2 format.