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Elastic Load Balancing
Network Load Balancers

Listeners for Your Network Load Balancers

Before you start using your Network Load Balancer, you must add one or more listeners. A listener is a process that checks for connection requests, using the protocol and port that you configure. The rules that you define for a listener determine how the load balancer routes requests to the targets in one or more target groups.

Listener Configuration

Listeners support the following protocols and ports:

  • Protocols: TCP

  • Ports: 1-65535

You can use WebSockets with your TCP listeners.

Listener Rules

When you create a listener, you specify a rule for routing requests. This rule forwards requests to the specified target group. To update this rule, see Update a Listener for Your Network Load Balancer.