diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/lib/nlb/network-target-group.ts b/packages/@aws-cdk/aws-elasticloadbalancingv2/lib/nlb/network-target-group.ts
index 9ec85ec0efcae..4c19fd228e706 100644
--- a/packages/@aws-cdk/aws-elasticloadbalancingv2/lib/nlb/network-target-group.ts
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/lib/nlb/network-target-group.ts
@@ -51,6 +51,15 @@ export interface NetworkTargetGroupProps extends BaseTargetGroupProps {
    * @default - No targets.
    */
   readonly targets?: INetworkLoadBalancerTarget[];
+
+  /**
+   *
+   * Indicates whether the load balancer terminates connections at
+   * the end of the deregistration timeout.
+   *
+   * @default false
+   */
+  readonly connectionTermination?: boolean;
 }
 
 /**
@@ -93,7 +102,9 @@ export class NetworkTargetGroup extends TargetGroupBase implements INetworkTarge
     if (props.preserveClientIp !== undefined) {
       this.setAttribute('preserve_client_ip.enabled', props.preserveClientIp ? 'true' : 'false');
     }
-
+    if (props.connectionTermination !== undefined) {
+      this.setAttribute('deregistration_delay.connection_termination.enabled', props.connectionTermination ? 'true' : 'false');
+    }
     this.addTarget(...(props.targets || []));
   }
 
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/package.json b/packages/@aws-cdk/aws-elasticloadbalancingv2/package.json
index ff40953a4dac3..cbe5644a089fb 100644
--- a/packages/@aws-cdk/aws-elasticloadbalancingv2/package.json
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/package.json
@@ -82,6 +82,7 @@
   "devDependencies": {
     "@aws-cdk/assertions": "0.0.0",
     "@aws-cdk/cdk-build-tools": "0.0.0",
+    "@aws-cdk/integ-tests": "0.0.0",
     "@aws-cdk/integ-runner": "0.0.0",
     "@aws-cdk/cfn2ts": "0.0.0",
     "@aws-cdk/pkglint": "0.0.0",
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/aws-cdk-elbv2-integ.template.json b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/aws-cdk-elbv2-integ.template.json
new file mode 100644
index 0000000000000..0e7d73455d2e8
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/aws-cdk-elbv2-integ.template.json
@@ -0,0 +1,453 @@
+{
+ "Resources": {
+  "VPCB9E5F0B4": {
+   "Type": "AWS::EC2::VPC",
+   "Properties": {
+    "CidrBlock": "10.0.0.0/16",
+    "EnableDnsHostnames": true,
+    "EnableDnsSupport": true,
+    "InstanceTenancy": "default",
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet1SubnetB4246D30": {
+   "Type": "AWS::EC2::Subnet",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "AvailabilityZone": {
+     "Fn::Select": [
+      0,
+      {
+       "Fn::GetAZs": ""
+      }
+     ]
+    },
+    "CidrBlock": "10.0.0.0/18",
+    "MapPublicIpOnLaunch": true,
+    "Tags": [
+     {
+      "Key": "aws-cdk:subnet-name",
+      "Value": "Public"
+     },
+     {
+      "Key": "aws-cdk:subnet-type",
+      "Value": "Public"
+     },
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet1RouteTableFEE4B781": {
+   "Type": "AWS::EC2::RouteTable",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet1RouteTableAssociation0B0896DC": {
+   "Type": "AWS::EC2::SubnetRouteTableAssociation",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPublicSubnet1RouteTableFEE4B781"
+    },
+    "SubnetId": {
+     "Ref": "VPCPublicSubnet1SubnetB4246D30"
+    }
+   }
+  },
+  "VPCPublicSubnet1DefaultRoute91CEF279": {
+   "Type": "AWS::EC2::Route",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPublicSubnet1RouteTableFEE4B781"
+    },
+    "DestinationCidrBlock": "0.0.0.0/0",
+    "GatewayId": {
+     "Ref": "VPCIGWB7E252D3"
+    }
+   },
+   "DependsOn": [
+    "VPCVPCGW99B986DC"
+   ]
+  },
+  "VPCPublicSubnet1EIP6AD938E8": {
+   "Type": "AWS::EC2::EIP",
+   "Properties": {
+    "Domain": "vpc",
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet1NATGatewayE0556630": {
+   "Type": "AWS::EC2::NatGateway",
+   "Properties": {
+    "SubnetId": {
+     "Ref": "VPCPublicSubnet1SubnetB4246D30"
+    },
+    "AllocationId": {
+     "Fn::GetAtt": [
+      "VPCPublicSubnet1EIP6AD938E8",
+      "AllocationId"
+     ]
+    },
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet2Subnet74179F39": {
+   "Type": "AWS::EC2::Subnet",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "AvailabilityZone": {
+     "Fn::Select": [
+      1,
+      {
+       "Fn::GetAZs": ""
+      }
+     ]
+    },
+    "CidrBlock": "10.0.64.0/18",
+    "MapPublicIpOnLaunch": true,
+    "Tags": [
+     {
+      "Key": "aws-cdk:subnet-name",
+      "Value": "Public"
+     },
+     {
+      "Key": "aws-cdk:subnet-type",
+      "Value": "Public"
+     },
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet2RouteTable6F1A15F1": {
+   "Type": "AWS::EC2::RouteTable",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet2RouteTableAssociation5A808732": {
+   "Type": "AWS::EC2::SubnetRouteTableAssociation",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPublicSubnet2RouteTable6F1A15F1"
+    },
+    "SubnetId": {
+     "Ref": "VPCPublicSubnet2Subnet74179F39"
+    }
+   }
+  },
+  "VPCPublicSubnet2DefaultRouteB7481BBA": {
+   "Type": "AWS::EC2::Route",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPublicSubnet2RouteTable6F1A15F1"
+    },
+    "DestinationCidrBlock": "0.0.0.0/0",
+    "GatewayId": {
+     "Ref": "VPCIGWB7E252D3"
+    }
+   },
+   "DependsOn": [
+    "VPCVPCGW99B986DC"
+   ]
+  },
+  "VPCPublicSubnet2EIP4947BC00": {
+   "Type": "AWS::EC2::EIP",
+   "Properties": {
+    "Domain": "vpc",
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+     }
+    ]
+   }
+  },
+  "VPCPublicSubnet2NATGateway3C070193": {
+   "Type": "AWS::EC2::NatGateway",
+   "Properties": {
+    "SubnetId": {
+     "Ref": "VPCPublicSubnet2Subnet74179F39"
+    },
+    "AllocationId": {
+     "Fn::GetAtt": [
+      "VPCPublicSubnet2EIP4947BC00",
+      "AllocationId"
+     ]
+    },
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+     }
+    ]
+   }
+  },
+  "VPCPrivateSubnet1Subnet8BCA10E0": {
+   "Type": "AWS::EC2::Subnet",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "AvailabilityZone": {
+     "Fn::Select": [
+      0,
+      {
+       "Fn::GetAZs": ""
+      }
+     ]
+    },
+    "CidrBlock": "10.0.128.0/18",
+    "MapPublicIpOnLaunch": false,
+    "Tags": [
+     {
+      "Key": "aws-cdk:subnet-name",
+      "Value": "Private"
+     },
+     {
+      "Key": "aws-cdk:subnet-type",
+      "Value": "Private"
+     },
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1"
+     }
+    ]
+   }
+  },
+  "VPCPrivateSubnet1RouteTableBE8A6027": {
+   "Type": "AWS::EC2::RouteTable",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1"
+     }
+    ]
+   }
+  },
+  "VPCPrivateSubnet1RouteTableAssociation347902D1": {
+   "Type": "AWS::EC2::SubnetRouteTableAssociation",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPrivateSubnet1RouteTableBE8A6027"
+    },
+    "SubnetId": {
+     "Ref": "VPCPrivateSubnet1Subnet8BCA10E0"
+    }
+   }
+  },
+  "VPCPrivateSubnet1DefaultRouteAE1D6490": {
+   "Type": "AWS::EC2::Route",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPrivateSubnet1RouteTableBE8A6027"
+    },
+    "DestinationCidrBlock": "0.0.0.0/0",
+    "NatGatewayId": {
+     "Ref": "VPCPublicSubnet1NATGatewayE0556630"
+    }
+   }
+  },
+  "VPCPrivateSubnet2SubnetCFCDAA7A": {
+   "Type": "AWS::EC2::Subnet",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "AvailabilityZone": {
+     "Fn::Select": [
+      1,
+      {
+       "Fn::GetAZs": ""
+      }
+     ]
+    },
+    "CidrBlock": "10.0.192.0/18",
+    "MapPublicIpOnLaunch": false,
+    "Tags": [
+     {
+      "Key": "aws-cdk:subnet-name",
+      "Value": "Private"
+     },
+     {
+      "Key": "aws-cdk:subnet-type",
+      "Value": "Private"
+     },
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2"
+     }
+    ]
+   }
+  },
+  "VPCPrivateSubnet2RouteTable0A19E10E": {
+   "Type": "AWS::EC2::RouteTable",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2"
+     }
+    ]
+   }
+  },
+  "VPCPrivateSubnet2RouteTableAssociation0C73D413": {
+   "Type": "AWS::EC2::SubnetRouteTableAssociation",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPrivateSubnet2RouteTable0A19E10E"
+    },
+    "SubnetId": {
+     "Ref": "VPCPrivateSubnet2SubnetCFCDAA7A"
+    }
+   }
+  },
+  "VPCPrivateSubnet2DefaultRouteF4F5CFD2": {
+   "Type": "AWS::EC2::Route",
+   "Properties": {
+    "RouteTableId": {
+     "Ref": "VPCPrivateSubnet2RouteTable0A19E10E"
+    },
+    "DestinationCidrBlock": "0.0.0.0/0",
+    "NatGatewayId": {
+     "Ref": "VPCPublicSubnet2NATGateway3C070193"
+    }
+   }
+  },
+  "VPCIGWB7E252D3": {
+   "Type": "AWS::EC2::InternetGateway",
+   "Properties": {
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "aws-cdk-elbv2-integ/VPC"
+     }
+    ]
+   }
+  },
+  "VPCVPCGW99B986DC": {
+   "Type": "AWS::EC2::VPCGatewayAttachment",
+   "Properties": {
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    },
+    "InternetGatewayId": {
+     "Ref": "VPCIGWB7E252D3"
+    }
+   }
+  },
+  "LB8A12904C": {
+   "Type": "AWS::ElasticLoadBalancingV2::LoadBalancer",
+   "Properties": {
+    "LoadBalancerAttributes": [
+     {
+      "Key": "deletion_protection.enabled",
+      "Value": "false"
+     }
+    ],
+    "Scheme": "internet-facing",
+    "Subnets": [
+     {
+      "Ref": "VPCPublicSubnet1SubnetB4246D30"
+     },
+     {
+      "Ref": "VPCPublicSubnet2Subnet74179F39"
+     }
+    ],
+    "Type": "network"
+   },
+   "DependsOn": [
+    "VPCPublicSubnet1DefaultRoute91CEF279",
+    "VPCPublicSubnet2DefaultRouteB7481BBA"
+   ]
+  },
+  "LBlistenerE5D117CC": {
+   "Type": "AWS::ElasticLoadBalancingV2::Listener",
+   "Properties": {
+    "DefaultActions": [
+     {
+      "TargetGroupArn": {
+       "Ref": "TGB29B09E7"
+      },
+      "Type": "forward"
+     }
+    ],
+    "LoadBalancerArn": {
+     "Ref": "LB8A12904C"
+    },
+    "Port": 443,
+    "Protocol": "TCP"
+   }
+  },
+  "TGB29B09E7": {
+   "Type": "AWS::ElasticLoadBalancingV2::TargetGroup",
+   "Properties": {
+    "Port": 443,
+    "Protocol": "TCP",
+    "TargetGroupAttributes": [
+     {
+      "Key": "deregistration_delay.timeout_seconds",
+      "Value": "5"
+     },
+     {
+      "Key": "deregistration_delay.connection_termination.enabled",
+      "Value": "true"
+     }
+    ],
+    "VpcId": {
+     "Ref": "VPCB9E5F0B4"
+    }
+   },
+   "DependsOn": [
+    "VPCIGWB7E252D3"
+   ]
+  }
+ }
+}
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/cdk.out b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/cdk.out
new file mode 100644
index 0000000000000..588d7b269d34f
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/cdk.out
@@ -0,0 +1 @@
+{"version":"20.0.0"}
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/integ.json b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/integ.json
new file mode 100644
index 0000000000000..845dbc42c2cc7
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/integ.json
@@ -0,0 +1,11 @@
+{
+  "version": "20.0.0",
+  "testCases": {
+    "targetGroupTest/DefaultTest": {
+      "stacks": [
+        "aws-cdk-elbv2-integ"
+      ],
+      "assertionStack": "targetGroupTestDefaultTestDeployAssert29FB5AEF"
+    }
+  }
+}
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/manifest.json b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/manifest.json
new file mode 100644
index 0000000000000..7f83a674ddadc
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/manifest.json
@@ -0,0 +1,193 @@
+{
+  "version": "20.0.0",
+  "artifacts": {
+    "Tree": {
+      "type": "cdk:tree",
+      "properties": {
+        "file": "tree.json"
+      }
+    },
+    "aws-cdk-elbv2-integ": {
+      "type": "aws:cloudformation:stack",
+      "environment": "aws://unknown-account/unknown-region",
+      "properties": {
+        "templateFile": "aws-cdk-elbv2-integ.template.json",
+        "validateOnSynth": false
+      },
+      "metadata": {
+        "/aws-cdk-elbv2-integ/VPC/Resource": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCB9E5F0B4"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet1/Subnet": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet1SubnetB4246D30"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet1/RouteTable": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet1RouteTableFEE4B781"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet1/RouteTableAssociation": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet1RouteTableAssociation0B0896DC"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet1/DefaultRoute": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet1DefaultRoute91CEF279"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet1/EIP": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet1EIP6AD938E8"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet1/NATGateway": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet1NATGatewayE0556630"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet2/Subnet": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet2Subnet74179F39"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet2/RouteTable": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet2RouteTable6F1A15F1"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet2/RouteTableAssociation": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet2RouteTableAssociation5A808732"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet2/DefaultRoute": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet2DefaultRouteB7481BBA"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet2/EIP": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet2EIP4947BC00"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PublicSubnet2/NATGateway": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPublicSubnet2NATGateway3C070193"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet1/Subnet": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet1Subnet8BCA10E0"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet1/RouteTable": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet1RouteTableBE8A6027"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet1/RouteTableAssociation": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet1RouteTableAssociation347902D1"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet1/DefaultRoute": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet1DefaultRouteAE1D6490"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet2/Subnet": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet2SubnetCFCDAA7A"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet2/RouteTable": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet2RouteTable0A19E10E"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet2/RouteTableAssociation": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet2RouteTableAssociation0C73D413"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/PrivateSubnet2/DefaultRoute": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCPrivateSubnet2DefaultRouteF4F5CFD2"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/IGW": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCIGWB7E252D3"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/VPC/VPCGW": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "VPCVPCGW99B986DC"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/LB/Resource": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "LB8A12904C"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/LB/listener/Resource": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "LBlistenerE5D117CC"
+          }
+        ],
+        "/aws-cdk-elbv2-integ/TG": [
+          {
+            "type": "aws:cdk:warning",
+            "data": "When creating an empty TargetGroup, you should specify a 'targetType' (this warning may become an error in the future)."
+          }
+        ],
+        "/aws-cdk-elbv2-integ/TG/Resource": [
+          {
+            "type": "aws:cdk:logicalId",
+            "data": "TGB29B09E7"
+          }
+        ]
+      },
+      "displayName": "aws-cdk-elbv2-integ"
+    },
+    "targetGroupTestDefaultTestDeployAssert29FB5AEF": {
+      "type": "aws:cloudformation:stack",
+      "environment": "aws://unknown-account/unknown-region",
+      "properties": {
+        "templateFile": "targetGroupTestDefaultTestDeployAssert29FB5AEF.template.json",
+        "validateOnSynth": false
+      },
+      "displayName": "targetGroupTest/DefaultTest/DeployAssert"
+    }
+  }
+}
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/targetGroupTestDefaultTestDeployAssert29FB5AEF.template.json b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/targetGroupTestDefaultTestDeployAssert29FB5AEF.template.json
new file mode 100644
index 0000000000000..9e26dfeeb6e64
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/targetGroupTestDefaultTestDeployAssert29FB5AEF.template.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/tree.json b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/tree.json
new file mode 100644
index 0000000000000..894f5604a517d
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/connection-termination.nlb.integ.snapshot/tree.json
@@ -0,0 +1,823 @@
+{
+  "version": "tree-0.1",
+  "tree": {
+    "id": "App",
+    "path": "",
+    "children": {
+      "Tree": {
+        "id": "Tree",
+        "path": "Tree",
+        "constructInfo": {
+          "fqn": "constructs.Construct",
+          "version": "10.1.33"
+        }
+      },
+      "aws-cdk-elbv2-integ": {
+        "id": "aws-cdk-elbv2-integ",
+        "path": "aws-cdk-elbv2-integ",
+        "children": {
+          "VPC": {
+            "id": "VPC",
+            "path": "aws-cdk-elbv2-integ/VPC",
+            "children": {
+              "Resource": {
+                "id": "Resource",
+                "path": "aws-cdk-elbv2-integ/VPC/Resource",
+                "attributes": {
+                  "aws:cdk:cloudformation:type": "AWS::EC2::VPC",
+                  "aws:cdk:cloudformation:props": {
+                    "cidrBlock": "10.0.0.0/16",
+                    "enableDnsHostnames": true,
+                    "enableDnsSupport": true,
+                    "instanceTenancy": "default",
+                    "tags": [
+                      {
+                        "key": "Name",
+                        "value": "aws-cdk-elbv2-integ/VPC"
+                      }
+                    ]
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.CfnVPC",
+                  "version": "0.0.0"
+                }
+              },
+              "PublicSubnet1": {
+                "id": "PublicSubnet1",
+                "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1",
+                "children": {
+                  "Subnet": {
+                    "id": "Subnet",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/Subnet",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Subnet",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "availabilityZone": {
+                          "Fn::Select": [
+                            0,
+                            {
+                              "Fn::GetAZs": ""
+                            }
+                          ]
+                        },
+                        "cidrBlock": "10.0.0.0/18",
+                        "mapPublicIpOnLaunch": true,
+                        "tags": [
+                          {
+                            "key": "aws-cdk:subnet-name",
+                            "value": "Public"
+                          },
+                          {
+                            "key": "aws-cdk:subnet-type",
+                            "value": "Public"
+                          },
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnet",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "Acl": {
+                    "id": "Acl",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/Acl",
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/core.Resource",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTable": {
+                    "id": "RouteTable",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/RouteTable",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::RouteTable",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRouteTable",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTableAssociation": {
+                    "id": "RouteTableAssociation",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/RouteTableAssociation",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::SubnetRouteTableAssociation",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPublicSubnet1RouteTableFEE4B781"
+                        },
+                        "subnetId": {
+                          "Ref": "VPCPublicSubnet1SubnetB4246D30"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnetRouteTableAssociation",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "DefaultRoute": {
+                    "id": "DefaultRoute",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/DefaultRoute",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Route",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPublicSubnet1RouteTableFEE4B781"
+                        },
+                        "destinationCidrBlock": "0.0.0.0/0",
+                        "gatewayId": {
+                          "Ref": "VPCIGWB7E252D3"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRoute",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "EIP": {
+                    "id": "EIP",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/EIP",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::EIP",
+                      "aws:cdk:cloudformation:props": {
+                        "domain": "vpc",
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnEIP",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "NATGateway": {
+                    "id": "NATGateway",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet1/NATGateway",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::NatGateway",
+                      "aws:cdk:cloudformation:props": {
+                        "subnetId": {
+                          "Ref": "VPCPublicSubnet1SubnetB4246D30"
+                        },
+                        "allocationId": {
+                          "Fn::GetAtt": [
+                            "VPCPublicSubnet1EIP6AD938E8",
+                            "AllocationId"
+                          ]
+                        },
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet1"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnNatGateway",
+                      "version": "0.0.0"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.PublicSubnet",
+                  "version": "0.0.0"
+                }
+              },
+              "PublicSubnet2": {
+                "id": "PublicSubnet2",
+                "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2",
+                "children": {
+                  "Subnet": {
+                    "id": "Subnet",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/Subnet",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Subnet",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "availabilityZone": {
+                          "Fn::Select": [
+                            1,
+                            {
+                              "Fn::GetAZs": ""
+                            }
+                          ]
+                        },
+                        "cidrBlock": "10.0.64.0/18",
+                        "mapPublicIpOnLaunch": true,
+                        "tags": [
+                          {
+                            "key": "aws-cdk:subnet-name",
+                            "value": "Public"
+                          },
+                          {
+                            "key": "aws-cdk:subnet-type",
+                            "value": "Public"
+                          },
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnet",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "Acl": {
+                    "id": "Acl",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/Acl",
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/core.Resource",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTable": {
+                    "id": "RouteTable",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/RouteTable",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::RouteTable",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRouteTable",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTableAssociation": {
+                    "id": "RouteTableAssociation",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/RouteTableAssociation",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::SubnetRouteTableAssociation",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPublicSubnet2RouteTable6F1A15F1"
+                        },
+                        "subnetId": {
+                          "Ref": "VPCPublicSubnet2Subnet74179F39"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnetRouteTableAssociation",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "DefaultRoute": {
+                    "id": "DefaultRoute",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/DefaultRoute",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Route",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPublicSubnet2RouteTable6F1A15F1"
+                        },
+                        "destinationCidrBlock": "0.0.0.0/0",
+                        "gatewayId": {
+                          "Ref": "VPCIGWB7E252D3"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRoute",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "EIP": {
+                    "id": "EIP",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/EIP",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::EIP",
+                      "aws:cdk:cloudformation:props": {
+                        "domain": "vpc",
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnEIP",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "NATGateway": {
+                    "id": "NATGateway",
+                    "path": "aws-cdk-elbv2-integ/VPC/PublicSubnet2/NATGateway",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::NatGateway",
+                      "aws:cdk:cloudformation:props": {
+                        "subnetId": {
+                          "Ref": "VPCPublicSubnet2Subnet74179F39"
+                        },
+                        "allocationId": {
+                          "Fn::GetAtt": [
+                            "VPCPublicSubnet2EIP4947BC00",
+                            "AllocationId"
+                          ]
+                        },
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PublicSubnet2"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnNatGateway",
+                      "version": "0.0.0"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.PublicSubnet",
+                  "version": "0.0.0"
+                }
+              },
+              "PrivateSubnet1": {
+                "id": "PrivateSubnet1",
+                "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1",
+                "children": {
+                  "Subnet": {
+                    "id": "Subnet",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1/Subnet",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Subnet",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "availabilityZone": {
+                          "Fn::Select": [
+                            0,
+                            {
+                              "Fn::GetAZs": ""
+                            }
+                          ]
+                        },
+                        "cidrBlock": "10.0.128.0/18",
+                        "mapPublicIpOnLaunch": false,
+                        "tags": [
+                          {
+                            "key": "aws-cdk:subnet-name",
+                            "value": "Private"
+                          },
+                          {
+                            "key": "aws-cdk:subnet-type",
+                            "value": "Private"
+                          },
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnet",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "Acl": {
+                    "id": "Acl",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1/Acl",
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/core.Resource",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTable": {
+                    "id": "RouteTable",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1/RouteTable",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::RouteTable",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRouteTable",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTableAssociation": {
+                    "id": "RouteTableAssociation",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1/RouteTableAssociation",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::SubnetRouteTableAssociation",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPrivateSubnet1RouteTableBE8A6027"
+                        },
+                        "subnetId": {
+                          "Ref": "VPCPrivateSubnet1Subnet8BCA10E0"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnetRouteTableAssociation",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "DefaultRoute": {
+                    "id": "DefaultRoute",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet1/DefaultRoute",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Route",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPrivateSubnet1RouteTableBE8A6027"
+                        },
+                        "destinationCidrBlock": "0.0.0.0/0",
+                        "natGatewayId": {
+                          "Ref": "VPCPublicSubnet1NATGatewayE0556630"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRoute",
+                      "version": "0.0.0"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.PrivateSubnet",
+                  "version": "0.0.0"
+                }
+              },
+              "PrivateSubnet2": {
+                "id": "PrivateSubnet2",
+                "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2",
+                "children": {
+                  "Subnet": {
+                    "id": "Subnet",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2/Subnet",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Subnet",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "availabilityZone": {
+                          "Fn::Select": [
+                            1,
+                            {
+                              "Fn::GetAZs": ""
+                            }
+                          ]
+                        },
+                        "cidrBlock": "10.0.192.0/18",
+                        "mapPublicIpOnLaunch": false,
+                        "tags": [
+                          {
+                            "key": "aws-cdk:subnet-name",
+                            "value": "Private"
+                          },
+                          {
+                            "key": "aws-cdk:subnet-type",
+                            "value": "Private"
+                          },
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnet",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "Acl": {
+                    "id": "Acl",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2/Acl",
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/core.Resource",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTable": {
+                    "id": "RouteTable",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2/RouteTable",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::RouteTable",
+                      "aws:cdk:cloudformation:props": {
+                        "vpcId": {
+                          "Ref": "VPCB9E5F0B4"
+                        },
+                        "tags": [
+                          {
+                            "key": "Name",
+                            "value": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2"
+                          }
+                        ]
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRouteTable",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "RouteTableAssociation": {
+                    "id": "RouteTableAssociation",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2/RouteTableAssociation",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::SubnetRouteTableAssociation",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPrivateSubnet2RouteTable0A19E10E"
+                        },
+                        "subnetId": {
+                          "Ref": "VPCPrivateSubnet2SubnetCFCDAA7A"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnSubnetRouteTableAssociation",
+                      "version": "0.0.0"
+                    }
+                  },
+                  "DefaultRoute": {
+                    "id": "DefaultRoute",
+                    "path": "aws-cdk-elbv2-integ/VPC/PrivateSubnet2/DefaultRoute",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::EC2::Route",
+                      "aws:cdk:cloudformation:props": {
+                        "routeTableId": {
+                          "Ref": "VPCPrivateSubnet2RouteTable0A19E10E"
+                        },
+                        "destinationCidrBlock": "0.0.0.0/0",
+                        "natGatewayId": {
+                          "Ref": "VPCPublicSubnet2NATGateway3C070193"
+                        }
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-ec2.CfnRoute",
+                      "version": "0.0.0"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.PrivateSubnet",
+                  "version": "0.0.0"
+                }
+              },
+              "IGW": {
+                "id": "IGW",
+                "path": "aws-cdk-elbv2-integ/VPC/IGW",
+                "attributes": {
+                  "aws:cdk:cloudformation:type": "AWS::EC2::InternetGateway",
+                  "aws:cdk:cloudformation:props": {
+                    "tags": [
+                      {
+                        "key": "Name",
+                        "value": "aws-cdk-elbv2-integ/VPC"
+                      }
+                    ]
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.CfnInternetGateway",
+                  "version": "0.0.0"
+                }
+              },
+              "VPCGW": {
+                "id": "VPCGW",
+                "path": "aws-cdk-elbv2-integ/VPC/VPCGW",
+                "attributes": {
+                  "aws:cdk:cloudformation:type": "AWS::EC2::VPCGatewayAttachment",
+                  "aws:cdk:cloudformation:props": {
+                    "vpcId": {
+                      "Ref": "VPCB9E5F0B4"
+                    },
+                    "internetGatewayId": {
+                      "Ref": "VPCIGWB7E252D3"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-ec2.CfnVPCGatewayAttachment",
+                  "version": "0.0.0"
+                }
+              }
+            },
+            "constructInfo": {
+              "fqn": "@aws-cdk/aws-ec2.Vpc",
+              "version": "0.0.0"
+            }
+          },
+          "LB": {
+            "id": "LB",
+            "path": "aws-cdk-elbv2-integ/LB",
+            "children": {
+              "Resource": {
+                "id": "Resource",
+                "path": "aws-cdk-elbv2-integ/LB/Resource",
+                "attributes": {
+                  "aws:cdk:cloudformation:type": "AWS::ElasticLoadBalancingV2::LoadBalancer",
+                  "aws:cdk:cloudformation:props": {
+                    "loadBalancerAttributes": [
+                      {
+                        "key": "deletion_protection.enabled",
+                        "value": "false"
+                      }
+                    ],
+                    "scheme": "internet-facing",
+                    "subnets": [
+                      {
+                        "Ref": "VPCPublicSubnet1SubnetB4246D30"
+                      },
+                      {
+                        "Ref": "VPCPublicSubnet2Subnet74179F39"
+                      }
+                    ],
+                    "type": "network"
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-elasticloadbalancingv2.CfnLoadBalancer",
+                  "version": "0.0.0"
+                }
+              },
+              "listener": {
+                "id": "listener",
+                "path": "aws-cdk-elbv2-integ/LB/listener",
+                "children": {
+                  "Resource": {
+                    "id": "Resource",
+                    "path": "aws-cdk-elbv2-integ/LB/listener/Resource",
+                    "attributes": {
+                      "aws:cdk:cloudformation:type": "AWS::ElasticLoadBalancingV2::Listener",
+                      "aws:cdk:cloudformation:props": {
+                        "defaultActions": [
+                          {
+                            "type": "forward",
+                            "targetGroupArn": {
+                              "Ref": "TGB29B09E7"
+                            }
+                          }
+                        ],
+                        "loadBalancerArn": {
+                          "Ref": "LB8A12904C"
+                        },
+                        "port": 443,
+                        "protocol": "TCP"
+                      }
+                    },
+                    "constructInfo": {
+                      "fqn": "@aws-cdk/aws-elasticloadbalancingv2.CfnListener",
+                      "version": "0.0.0"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-elasticloadbalancingv2.NetworkListener",
+                  "version": "0.0.0"
+                }
+              }
+            },
+            "constructInfo": {
+              "fqn": "@aws-cdk/aws-elasticloadbalancingv2.NetworkLoadBalancer",
+              "version": "0.0.0"
+            }
+          },
+          "TG": {
+            "id": "TG",
+            "path": "aws-cdk-elbv2-integ/TG",
+            "children": {
+              "Resource": {
+                "id": "Resource",
+                "path": "aws-cdk-elbv2-integ/TG/Resource",
+                "attributes": {
+                  "aws:cdk:cloudformation:type": "AWS::ElasticLoadBalancingV2::TargetGroup",
+                  "aws:cdk:cloudformation:props": {
+                    "port": 443,
+                    "protocol": "TCP",
+                    "targetGroupAttributes": [
+                      {
+                        "key": "deregistration_delay.timeout_seconds",
+                        "value": "5"
+                      },
+                      {
+                        "key": "deregistration_delay.connection_termination.enabled",
+                        "value": "true"
+                      }
+                    ],
+                    "vpcId": {
+                      "Ref": "VPCB9E5F0B4"
+                    }
+                  }
+                },
+                "constructInfo": {
+                  "fqn": "@aws-cdk/aws-elasticloadbalancingv2.CfnTargetGroup",
+                  "version": "0.0.0"
+                }
+              }
+            },
+            "constructInfo": {
+              "fqn": "@aws-cdk/aws-elasticloadbalancingv2.NetworkTargetGroup",
+              "version": "0.0.0"
+            }
+          }
+        },
+        "constructInfo": {
+          "fqn": "@aws-cdk/core.Stack",
+          "version": "0.0.0"
+        }
+      },
+      "targetGroupTest": {
+        "id": "targetGroupTest",
+        "path": "targetGroupTest",
+        "children": {
+          "DefaultTest": {
+            "id": "DefaultTest",
+            "path": "targetGroupTest/DefaultTest",
+            "children": {
+              "Default": {
+                "id": "Default",
+                "path": "targetGroupTest/DefaultTest/Default",
+                "constructInfo": {
+                  "fqn": "constructs.Construct",
+                  "version": "10.1.33"
+                }
+              },
+              "DeployAssert": {
+                "id": "DeployAssert",
+                "path": "targetGroupTest/DefaultTest/DeployAssert",
+                "constructInfo": {
+                  "fqn": "@aws-cdk/core.Stack",
+                  "version": "0.0.0"
+                }
+              }
+            },
+            "constructInfo": {
+              "fqn": "@aws-cdk/integ-tests.IntegTestCase",
+              "version": "0.0.0"
+            }
+          }
+        },
+        "constructInfo": {
+          "fqn": "@aws-cdk/integ-tests.IntegTest",
+          "version": "0.0.0"
+        }
+      }
+    },
+    "constructInfo": {
+      "fqn": "@aws-cdk/core.App",
+      "version": "0.0.0"
+    }
+  }
+}
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/integ.connection-termination.nlb.ts b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/integ.connection-termination.nlb.ts
new file mode 100644
index 0000000000000..884b9cce8305a
--- /dev/null
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/integ.connection-termination.nlb.ts
@@ -0,0 +1,41 @@
+#!/usr/bin/env node
+import * as ec2 from '@aws-cdk/aws-ec2';
+import * as cdk from '@aws-cdk/core';
+import { Duration } from '@aws-cdk/core';
+import * as integ from '@aws-cdk/integ-tests';
+import * as elbv2 from '../lib';
+
+
+const app = new cdk.App();
+const stack = new cdk.Stack(app, 'aws-cdk-elbv2-integ');
+
+const vpc = new ec2.Vpc(stack, 'VPC', {
+  maxAzs: 2,
+});
+
+const lb = new elbv2.NetworkLoadBalancer(stack, 'LB', {
+  vpc,
+  internetFacing: true,
+
+});
+
+const targetGroup = new elbv2.NetworkTargetGroup(stack, 'TG', {
+  vpc,
+  port: 443,
+  deregistrationDelay: Duration.seconds(5),
+  connectionTermination: true,
+});
+
+lb.addListener('listener', {
+  port: 443,
+  defaultTargetGroups: [targetGroup],
+});
+
+targetGroup.node.addDependency(vpc.internetConnectivityEstablished);
+
+// The target's security group must allow being routed by the LB and the clients.
+new integ.IntegTest(app, 'targetGroupTest', {
+  testCases: [stack],
+});
+
+app.synth();
diff --git a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/nlb/target-group.test.ts b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/nlb/target-group.test.ts
index d7ac75aa2f78b..4f634d82cfc00 100644
--- a/packages/@aws-cdk/aws-elasticloadbalancingv2/test/nlb/target-group.test.ts
+++ b/packages/@aws-cdk/aws-elasticloadbalancingv2/test/nlb/target-group.test.ts
@@ -220,6 +220,52 @@ describe('tests', () => {
     }).toThrow('Target group name: "my target group" must contain only alphanumeric characters or hyphens.');
   });
 
+  test('Disable deregistration_delay.connection_termination.enabled attribute for target group', () => {
+    // GIVEN
+    const stack = new cdk.Stack();
+    const vpc = new ec2.Vpc(stack, 'Vpc');
+
+    // WHEN
+    new elbv2.NetworkTargetGroup(stack, 'Group', {
+      vpc,
+      port: 80,
+      connectionTermination: false,
+    });
+
+    // THEN
+    Template.fromStack(stack).hasResourceProperties('AWS::ElasticLoadBalancingV2::TargetGroup', {
+      TargetGroupAttributes: [
+        {
+          Key: 'deregistration_delay.connection_termination.enabled',
+          Value: 'false',
+        },
+      ],
+    });
+  });
+
+  test('Enable deregistration_delay.connection_termination.enabled attribute for target group', () => {
+    // GIVEN
+    const stack = new cdk.Stack();
+    const vpc = new ec2.Vpc(stack, 'Vpc');
+
+    // WHEN
+    new elbv2.NetworkTargetGroup(stack, 'Group', {
+      vpc,
+      port: 80,
+      connectionTermination: true,
+    });
+
+    // THEN
+    Template.fromStack(stack).hasResourceProperties('AWS::ElasticLoadBalancingV2::TargetGroup', {
+      TargetGroupAttributes: [
+        {
+          Key: 'deregistration_delay.connection_termination.enabled',
+          Value: 'true',
+        },
+      ],
+    });
+  });
+
   test.each([elbv2.Protocol.UDP, elbv2.Protocol.TCP_UDP, elbv2.Protocol.TLS])(
     'Throws validation error, when `healthCheck` has `protocol` set to %s',
     (protocol) => {