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Microsoft Azure Load Balancer Monitoring

Microsoft Azure Load Balancer - An Overview

Applications Manager's Azure Load Balancer monitoring tool acts as the best solution to monitor the availability and performance of your Azure Load Balancer. With this monitoring tool, it is possible to gain complete visibility into your Load Balancer deployed on Azure. It tracks the key metrics such as Data path availability, Health probe status, Data throughput, SNAT connection, etc.

Creating a new Azure Load Balancer monitor

To learn how to create a new Azure Load Balancer monitor, click here.

Monitored Parameters

Navigate to the Category View by clicking the Monitors tab. Hover over 'Child Monitors' under Microsoft Azure in the Cloud Apps table, and then select the Load Balancer monitor from the displayed tooltip. This action will display the bulk configuration view for Azure Load Balancer in three tabs:

  • Availability tab gives the availability history for the past 24 hours or 30 days.
  • Performance tab gives the health status and events for the past 24 hours or 30 days.
  • List view tab enables you to perform bulk admin configurations.

The Microsoft Azure monitor provides a brief detail of the Azure Load Balancer under the given subscription. Following are the list of metrics monitored in Azure Load Balancer Monitoring in their corresponding tabs:

Note: Data shown for all the metrics in Azure Load Balancer monitor is collected via Azure REST APIs (Azure Service APIs and Azure Monitor API)

Overview

MetricsDescription
Data Path AvailabilityAverage Load Balancer data path availability over a specified poll interval (in %).
Health Probe StatusAverage Load Balancer health probe status over a specified poll interval (in %).
SNAT Ports
Allocated SNAT PortsTotal number of SNAT Ports allocated to the load balancer over a specified poll interval.
Used SNAT PortsTotal number of SNAT ports used over a specified poll interval.
Outbound Connection Statistics
Total SNAT ConnectionsTotal number of new SNAT connections created over a specified poll interval.
Failed SNAT ConnectionsTotal number of Failed SNAT connections over a specified poll interval.
Pending SNAT ConnectionsTotal number of Pending SNAT connections over a specified poll interval.
Successful SNAT ConnectionsTotal number of Successful SNAT connections over a specified poll interval.
Data Throughput
Total BytesTotal amount of Byte count over a specified poll interval (in MB).
Bytes InTotal amount of Byte received over a specified poll interval (in MB).
Bytes OutTotal amount of Byte transmitted over a specified poll interval (in MB).
Packets Count
Total PacketsTotal number of Packets count over a specified poll interval.
Packets InTotal number of Packets received over a specified poll interval
Packets OutTotal number of Packets transmitted over a specified poll interval.
SYN Packets Count
Total SYN PacketsTotal number of SYN Packets over a specified poll interval.
SYN Packets INTotal number of SYN Packets received over a specified poll interval.
SYN Packets OUTTotal number of SYN Packets transmitted over a specified poll interval.

Frontend and Backend Statistics

MetricsDescription
Top 5 Frontend IP Address by SNAT Connections Count: Provides a graphical representation of top 5 Frontend IP Addresses with respect to the SNAT Connection Counts in the environment (in milliseconds).
Top 5 Backend IP Address by SNAT Connections Count: Provides a graphical representation of top 5 Backend IP Addresses with respect to SNAT Connection Counts in the environment (in milliseconds).
Frontend Statistics
Frontend IP AddressFrontend IP Address.
Frontend IP Configuration NameName of the Frontend IP Configuration associated for the Frontend IP Address.
Frontend Data Path Availability(%)Average data path availability for the frontend IP Address over a specified poll interval.
Frontend Health Probe Status(%)Average health probe status for the frontend IP Address over a specified poll interval.
Frontend Used SNAT PortsTotal number of SNAT ports used by the frontend IP Address over a specified poll interval.
Frontend Bytes(MB)Total amount of Byte count used by the frontend IP Address over a specified poll interval.
Frontend PacketsTotal number of Packets count used by the frontend IP Address over a specified poll interval.
Frontend Successful SNAT ConnectionsTotal number of Successful SNAT connections in the frontend IP Address over a specified poll interval.
Frontend Pending SNAT ConnectionsTotal number of Pending SNAT connections in the frontend IP Address over a specified poll interval.
Frontend Failed SNAT ConnectionsTotal number of Failed SNAT connections in the frontend IP Address over a specified poll interval.
Frontend SNAT ConnectionsTotal number of new SNAT connections in the frontend IP Address created over a specified poll interval.
Frontend SYN PacketsTotal number of SYN Packets used by the frontend IP Address over a specified poll interval.
Backend Statistics
Backend IP AddressBackend IP Address
Backend Health Probe Status(%)Average health probe status for the backend IP Address over a specified poll interval.
Backend Used SNAT PortsTotal number of SNAT ports used by the backend IP Address over a specified poll interval..
Backend Successful SNAT ConnectionsTotal number of Successful SNAT connections in the backend IP Address over a specified poll interval.
Backend Pending SNAT ConnectionsTotal number of Pending SNAT connections in the backend IP Address over a specified poll interval.
Backend Failed SNAT ConnectionsTotal number of Failed SNAT connections in the backend IP Address over a specified poll interval..
Backend SNAT ConnectionsTotal number of new SNAT connections in the backend IP Address created over a specified poll interval.

Configuration

MetricsDescription
LOAD BALANCER CONFIGURATION
Provisioning StateDescribes the provisioning state of the Load Balancer. Possible values:
  • Deleting
  • Failed
  • Succeeded
  • Updating
LocationLocation on which the load balancer resides.
SKUPossible SKUs (Stock-keeping-Unit):
  • Basic
  • Standard
  • Gateway Load balancer
TierPossible Tiers: Regional and Global.
Frontend IP Configuration
Frontend IP Configuration NameName of the Frontend IP Configuration associated for the Frontend IP Address.
Frontend IP AddressAvailable Frontend IP Address.
Frontend Provisioning StateDescribes the provisioning state of the Frontend IP Configuration. Possible values:
  • Deleting
  • Failed
  • Succeeded
  • Updating
Private IP Allocation MethodPossible private IP allocation methods are Static and Dynamic.
Backend Pool Configuration
BackendAddress Pool NameName of the backend address pool.
Backend IP AddressIP address of the each backend address in the pool.
Backend VM NameVM Name which is associated for the backend IP address.
Backend VM StatusVM Status which is associated for the backend IP address.
Backend Pool Provisioning StateDescribes the provisioning state of the Backend IP Configuration. Possible values:
  • Deleting
  • Failed
  • Succeeded
  • Updating
Inbound NAT Rule NameName of the Inbound NAT rule.
Frontend PortFrontend port which is associated to the NAT rule.
Backend PortBackend port which is associated to the NAT rule.

Note: Backend VM Name and Backend VM Status are displayed only when the VM associated with the Backend IP Address is discovered under Azure Virtual Machine in Applications Manager

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