OpenNMS Horizoon demo environment with Docker and Docker Compose.

Initialize the environment.

git clone https://github.com/opennms-forge/opennms-demo.git
cd opennms-demo
docker-compose up -d

HINT: By default OpenNMS Horizon uses the floating tag latest with the current stable release from DockerHub.

To feed the demo environment with data you can use the demo-data.sh script which does following things:

• Creates a foreign-source without detectors
• Creates a requisition with all nodes from the demo environment
• Uploades a GraphML topology which represents the network topology named OpenNMS Demo

Usage:

cd setup
./demo-data.sh

Forwarding LLDPDU is not enabled by default on Linux bridges. To enable LLDPDU forwarding it is required to change the group_fwd_mask for a given bridge.

Using docker-compose up -d will create two additional bridges from this repository. One bridge simulating a local area network and second bridge for a isolated network in a remote office.

To enable LLDPDU forwarding it is required to identify the bridge on the docker host system with:

docker network ls

a0713f06e511        lldp_branch         bridge              local
2bde8ffcb81b        lldp_default        bridge              local
bb562d6d9e30        lldp_local          bridge              local

The NETWORK ID is part of the bridge name on the host system. To enable LLDPDU forwarding for the local network a bridge is created.

brctl show | grep bb562d6d9e30

br-bb562d6d9e30		8000.0242deaee63c	no		veth067f1fa

The filter can be set with

echo 16384 > /sys/class/net/br-bb562d6d9e30/bridge/group_fwd_mask

LLDPDU forwarding is now enabled and works immediately.