connector-multicast

source sink

UDP multicast source + sink. LAN-scoped pub-sub without a broker — discovery, heartbeats, test rigs.

<dependency>
    <groupId>com.telamin</groupId>
    <artifactId>connector-multicast</artifactId>
    <version>1.0.35</version>
</dependency>

When to use

• LAN-scoped fan-out with no broker.
• Service discovery and heartbeats between Mongoose instances.
• Test rigs that need pub-sub semantics without external infrastructure.

Not suitable for cross-WAN messaging or any scenario requiring durability — UDP is fire-and-forget.

Sample

eventFeeds:
  - name: heartbeats
    instance: !!com.telamin.mongoose.plugin.connector.multicast.MulticastEventSource
      multicastGroup: 224.0.1.50
      port: 4446
      interfaceName: eth0

eventSinks:
  - name: heartbeat-out
    instance: !!com.telamin.mongoose.plugin.connector.multicast.MulticastMessageSink
      multicastGroup: 224.0.1.50
      port: 4446
      ttl: 1

Operational notes

• interfaceName is supported on both sides for explicit NIC selection; loopback works for tests.
• TTL defaults to 1 (don't escape the local subnet). Bump only if you've thought about your network topology.
• No back-pressure — drops are silent at the UDP layer.

Examples

• plugins/event-source-example — agent-hosted source template that maps directly onto MulticastEventSource.

Source

mongoose-plugins/connector/connector-multicast