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    Create Listener
    Create Listener
    Updated on 05 Aug 2025
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    Listener

    The Listener is a crucial component that listens for requests from clients and routes them to the appropriate destination servers. It includes protocol, service port, and other detailed configurations. The listener defines how the Load Balancer listens and routes traffic to specific applications or backend services.

    1. Create a Listener

    A Listener is created by default when a Load Balancer is provisioned.

    To add an additional Listener to a Load Balancer, follow the steps below:

    Step 1: Go to the Load Balancer Details page by selecting the corresponding Load Balancer from the Load Balancer Management dashboard.

    Step 2: Navigate to the Listener tab and click Create Listener.

    Step 3: Fill in the following fields:

    • Listener name: Enter a name for the listener.
    • Description: Optional description for the listener.
    • Protocol: Choose protocol: HTTP / TERMINATED_HTTPS / TCP / UDP (default is HTTP with port 80).
    • Server pool: If incoming requests do not match any configured Policies, they will be routed to this default pool.
    • Client data timeout (ms): Maximum time a client connection is kept open without sending any request. Default is 50000 ms.
    • Member connect timeout (ms): Maximum time a backend server connection is kept open without receiving any data. Default is 5000 ms.
    • Member data timeout (ms): Maximum time a backend server can keep a connection open without sending a request. Default is 5000 ms.
    • TCP inspect timeout (ms): Maximum wait time for a router/security device to get a response during TCP inspection. Default is 0.
    • Connection limit: Maximum number of concurrent connections the Load Balancer can handle. Default is -1 (unlimited).
    • HTTP Header insertions: Default headers: X-Forwarded-For, X-Forwarded-Proto, X-Forwarded-Port. You can uncheck them if not needed.
      • X-Forwarded-For: When true, inserts the client IP into the header sent to the backend.
      • X-Forwarded-Port: When true, inserts the listener port into the header.
      • X-Forwarded-Proto: When true, inserts the request protocol into the header.

    Click Create Listener to confirm or Cancel to abort.

    2. Update a Listener

    Step 1: From the Listener list screen, select the Listener you want to update.

    Step 2: You can update the following fields:

    • Listener name: Enter a name for the listener.
    • Description: Optional description for the listener.
    • Server pool: Default pool for requests that do not match any configured Policies.
    • Client data timeout (ms): Maximum time a client connection is kept open without sending any request. Default is 50000 ms.
    • Member connect timeout (ms): Maximum time a backend server connection is kept open without receiving data. Default is 5000 ms.
    • Member data timeout (ms): Maximum time a backend server can keep a connection open without sending a request. Default is 5000 ms.
    • TCP inspect timeout (ms): Max wait time during TCP inspection for a response from the destination server. Default is 0.
    • Connection limit: Maximum number of concurrent connections the Load Balancer can handle. Default is -1 (unlimited).

    Click Update Listener to confirm or Cancel to abort.

    3. Delete a Listener

    Step 1: From the Listener list screen, go to the Action section of the listener you wish to delete and click Delete.

    Step 2: A confirmation dialog will appear showing the Listener name. Type delete and click Delete Listener to proceed.

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