AWS elasticloadbalancing documentation change

Service: elasticloadbalancing · 2025-11-19 · Documentation low

File: elasticloadbalancing/latest/network/create-listener.md

Summary

Updated documentation to clarify default action configuration, added instructions for multiple target group weighting, and expanded examples for TCP listeners with multiple target groups in CLI/CloudFormation

Security assessment

Changes focus on configuration clarity and multi-target group support without mentioning security vulnerabilities, encryption, access controls, or other security-related aspects

Diff

diff --git a/elasticloadbalancing/latest/network/create-listener.md b/elasticloadbalancing/latest/network/create-listener.md
index d13a98f4a..9b64a0180 100644
--- a//elasticloadbalancing/latest/network/create-listener.md
+++ b//elasticloadbalancing/latest/network/create-listener.md
@@ -13 +13 @@ A listener is a process that checks for connection requests. You define a listen
-  * You must specify a target group for the listener rule. For more information, see [Create a target group for your Network Load Balancer](./create-target-group.html).
+  * You must specify a target group for the default action. For more information, see [Create a target group for your Network Load Balancer](./create-target-group.html).
@@ -49 +49,5 @@ Console
-  6. For **Default action** , choose an available target group. If you don't have a target group that meets your needs, choose **Create target group** to create one now. For more information, see [Create a target group](./create-target-group.html).
+  6. For **Default action** , select a target group to forward traffic to.
+
+To add another target group, choose **Add target group** and update the weights as needed.
+
+If you don't have a target group that meets your needs, choose **Create target group** to create one now. For more information, see [Create a target group](./create-target-group.html).
@@ -63 +67 @@ Console
-  10. Choose **Add**.
+  10. (Optional) To add tags, expand **Listener tags**. Choose **Add new tag** and enter the tag key and tag value.
@@ -65 +69,3 @@ Console
-  11. [TLS listeners] To add certificates to the optional certificate list, see [Add certificates to the certificate list](./listener-update-certificates.html#add-certificates).
+  11. Choose **Add**.
+
+  12. [TLS listeners] To add certificates to the optional certificate list, see [Add certificates to the certificate list](./listener-update-certificates.html#add-certificates).
@@ -87,0 +94,19 @@ Use the [create-listener](https://docs.aws.amazon.com/cli/latest/reference/elbv2
+###### To add a TCP listener with multiple target groups
+
+Use the [create-listener](https://docs.aws.amazon.com/cli/latest/reference/elbv2/create-listener.html) command, specifying the TCP protocol, target groups, and weights.
+    
+    
+    aws elbv2 create-listener \
+        --load-balancer-arn load-balancer-arn \
+        --protocol TCP \
+        --port 80 \
+        --default-actions '[{
+            "Type":"forward",
+            "ForwardConfig":{
+                "TargetGroups":[
+                    {"TargetGroupArn":"target-group-1-arn","Weight":10},
+                    {"TargetGroupArn":"target-group-2-arn","Weight":30}
+                ]
+            }
+        }]'
+
@@ -141,0 +167,23 @@ Define a resource of type [AWS::ElasticLoadBalancingV2::Listener](https://docs.a
+###### To add a TCP listener with multiple target groups
+
+Define a resource of type [AWS::ElasticLoadBalancingV2::Listener](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticloadbalancingv2-listener.html) using the TCP protocol.
+    
+    
+    Resources:
+        myTCPListener:
+            Type: 'AWS::ElasticLoadBalancingV2::Listener'
+            Properties:
+            LoadBalancerArn: !Ref myLoadBalancer
+            Protocol: TCP
+            Port: 80
+            DefaultActions:
+                - Type: forward
+                ForwardConfig:
+                    TargetGroups:
+                    - TargetGroupArn: !Ref myTargetGroup1,
+                        Weight: 10
+                    - TargetGroupArn: !Ref myTargetGroup2,
+                        Weight: 30
+                TargetGroupStickinessConfig: 
+                    Enabled: true
+