The alarms created for an auto scaling group are available in AWS CloudWatch. The alarms are created for an auto scaling group to increase or decrease the instances to be launched when the traffic reaches the configured limit. To access CloudWatch, you must have the CloudWatch services enabled. To view the alarms configured for auto scaling groups in AWS, go to Services, and under the Management Tools section, click CloudWatch.
You can create new alarms and assign it to an auto scaling group from CloudWatch. You can also edit and view the alarms configured. The trigger timing for an instance can be defined in CloudWatch.
You can view specific metrics in CloudWatch with regard to traffic load in the network. These are graphical representations of the metrics that help maintain traffic load in the network.