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# Network Clustering
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ActiveMQ supports multi-broker networking capabilities for scalable, distributed messaging architectures with automatic discovery and load balancing.
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## Capabilities
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### Network Connectors
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```java { .api }
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public abstract class NetworkConnector extends DefaultBrokerService implements Service {
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    public void setUri(URI uri);
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    public void setDiscoveryUri(URI discoveryUri);
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    public void setDuplex(boolean duplex);
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    public void setNetworkTTL(int networkTTL);
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    public void start() throws Exception;
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    public void stop() throws Exception;
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}
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public class DiscoveryNetworkConnector extends NetworkConnector {
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    public void setDiscoveryAgent(DiscoveryAgent discoveryAgent);
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}
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```
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### Network Bridges
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```java { .api }
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public class DemandForwardingBridge implements NetworkBridge {
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    public void setLocalBroker(Broker localBroker);
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    public void setRemoteBroker(Transport remoteBroker);
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    public void start() throws Exception;
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    public void stop() throws Exception;
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}
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```
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### Discovery Agents
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```java { .api }
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public interface DiscoveryAgent extends Service {
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    void setDiscoveryListener(DiscoveryListener listener);
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    void registerService(String name) throws IOException;
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    void serviceFailed(DiscoveryEvent event) throws IOException;
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}
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```