Azure Monitor for Networks (Preview)
Azure Monitor for Network provides a comprehensive view of health and metrics for all deployed network resource without any configuration. The advanced search capability helps identify resource dependencies, enabling scenarios such as identifying resources that are hosting your website by simply searching for hosted website name.
The Azure Monitor for Networks Overview page provides an effortless way to visualize the inventory of your networking resources along with resource health and alerts. It is divided into four key functional areas:
- Search and filtering
- Resource Health and Metrics
- Dependency view
Search and filtering
The resource health and alerts view can be customized using filters like Subscription, Resource Group and Resource Type. The search box provides the capability to search through resource properties.
The search box can be used to search for resources and associated resources. For example, a Public IP is associated to an Application Gateway. Searching for the Public IPs DNS name will identify both Public IP and the associated Application Gateway.
Resource Health and Metric
Each tile represents a resource type, with the number of instances deployed across all subscriptions selected along with resource health status. In the example below, there are 105 ER and VPN Connections deployed, 103 are healthy, and 2 unavailable.
Clicking on the two Unavailable ER and VPN connections, launches a metric view.
You can click on each element in the grid view. Click on the Health icon to redirect to resource health for that connection. Click on Alerts to redirect to alerts and metrics page respectively for that connection.
The Alerts grid on the right provides a view of all the alerts generated for the selected resources across all subscriptions. Click on the alert counts to navigate to detailed alerts page.
The Dependency view helps visualize how the resource is configured. Currently dependency view is only supported for Application Gateway. Dependency view can be accessed by clicking on the Application Gateway resource name from the metrics grid view.
The Dependency view for Application Gateway provides a simplified view of how the front-end IPs are connected to the listeners, rules and backend pool. The connecting edges are color coded and provide additional details based on the backend pool health. The view also provides a detailed view of Application Gateway metrics and metrics for all related backend pools such as VMSS and VM instances.
The dependency graph enables easy navigation to configuration settings. Right click on a backend pool to access to other functionality. For example, if the backend pool is a VM then you can directly access VM Insights and Network Watcher connection troubleshoot to identify connectivity issues.
The search and filter bar on the dependency view provide an effortless way to search through the graph. For example, searching for AppGWTestRule in the example below will narrow down the graphical view to all nodes connected via AppGWTestRule.
Different filters provide help to narrow down on to a specific path and state. For example, select only Unhealthy from the Health Status drop down to show all the edges where state is Unhealthy.
Click on Detailed Metric View to launch a pre-configured workbook with detailed metrics for the application gateway, all backend pool resources and front end IPs.
- Learn more about network monitoring at What is Azure Network Watcher?.