Azure Virtual WAN and Monitor - metrics lacking

Daniel Östlund 96 Reputation points
2021-11-16T12:59:45.587+00:00

Are there currently some limitations as to what Azure Monitor can view for Azure Virtual WAN? It seems that the ExpressRoute related metrics are unavailable. Previously we had ER gateways outside of vWAN and could get its metrics monitored and alert rules setup based on that, but now when we have moved to vWAN there seems to be no metrics related to ER that the Azure Monitor can see?
As an example, if I create a alert rule and start browsing for the scope it seems that for ER gateways there are only Activity Logs to create alert rules based on, while for the VPN gateways there are plenty of metrics to select.

According to the documentation there should be metrics for ER gateways as well:
https://video2.skills-academy.com/en-us/azure/virtual-wan/monitor-virtual-wan#azure-expressroute-gateways

Azure Monitor
Azure Monitor
An Azure service that is used to collect, analyze, and act on telemetry data from Azure and on-premises environments.
2,971 questions
Azure Virtual WAN
Azure Virtual WAN
An Azure virtual networking service that provides optimized and automated branch-to-branch connectivity.
197 questions
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  1. Daniel Östlund 96 Reputation points
    2021-11-17T09:39:36.543+00:00

    The limitations seems to be on portal only:

    150110-notsupported.png

    You can still see metrics from the ER panel in each virtual hub view and by selecting "View in Azure Monitor" next to the Metrics field. Above screenshot is from trying to create a alert rule from the metrics view, however I tested creating the alert rule using azurerm provider with Terraform and the rule is created successfully.

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  1. Stanislav Zhelyazkov 21,931 Reputation points MVP
    2021-11-16T13:10:03.437+00:00

    Hi,
    To my knowledge this is some portal limitation. I have recent experience with Azure Synapse Analytics Data Explorer Pools. The resource has metrics but when you try to create alert for a metric it is not possible from portal. It works perfectly fine if you create the alert rule via ARM Template for example. So if alert rule is what you try to create this is your work around. Probably works if you use Az PS or Az CLI as well.

    Please "Accept the answer" if the information helped you. This will help us and others in the community as well.