MIMIC MQTT Simulator: MQTT 5 Shared subscriptions on Eclipse Amlen broker
Difference between normal and MQTT 5 shared subscriptions illustrated on Eclipse Amlen broker.
0:00 2 mosquitto_sub clients, non-shared subscription
0:12 MIMIC generates messages every second with a "count" sequence number
0:17 verify that each message goes to each subscriber
0:40 restart the clients with common shared subscription
1:25 verify that each message goes to either subscriber