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Azure Virtual Network

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Azure Virtual Network is a service that provides the fundamental building block for your private network in Azure enabling many types of Azure resources to securely communicate with each other, using the internet, and on-premises networks. This integration helps in monitoring the round trip time, failed pings, inbound dropped packets, and inbound bytes.

Metric types

For Azure Virtual Network, you can collect the following metrics:

Setup

Azure service sends monitoring data to Azure Monitor, which can then stream data to Eventhub. Sumo Logic supports:

You must explicitly enable diagnostic settings for each Virtual Network you want to monitor. You can forward metrics to the same event hub provided they satisfy the limitations and permissions as described here.

When you configure the event hubs source or HTTP source, plan your source category to ease the querying process. A hierarchical approach allows you to make use of wildcards. For example: Azure/VirtualNetwork/Metrics.

Configure metrics collection

In this section, you will configure a pipeline for shipping metrics from Azure Monitor to an Event Hub, on to an Azure Function, and finally to an HTTP Source on a hosted collector in Sumo Logic.

  1. Configure an HTTP Source.
  2. Configure and deploy the ARM Template.
  3. Export metrics to Event Hub. Perform below steps for each Virtual Network that you want to monitor.
    • Choose Stream to an event hub as destination.
    • Select AllMetrics.
    • Use the Event hub namespace created by the ARM template in Step 2 above. You can create a new Event hub or use the one created by ARM template. You can use the default policy RootManageSharedAccessKey as the policy name.

Troubleshooting

HTTP Logs and Metrics Source used by Azure Functions

To troubleshoot metrics collection, follow the instructions in Collect Metrics from Azure Monitor > Troubleshooting metrics collection.

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