Move listener_backlog to nginxaas statistics

Author: arpith-f5

content/nginxaas-azure/changelog.md

@@ -13,6 +13,13 @@ To see a list of currently active issues, visit the [Known issues]({{< ref "/ngi
 
 To review older entries, visit the [Changelog archive]({{< ref "/nginxaas-azure/changelog-archive" >}}) section.
 
+
+## May 20, 2025
+
+- {{% icon-feature %}} **Azure Monitor Platform Metrics**
+
+   NGINXaaS now publishes platform metrics directly to Azure Monitor. Compared to legacy monitoring based on custom metrics, platform metrics offers reduced latency and higher reliability. We strongly recommend migrating your alerts to use platform metrics for improved monitoring and management. For more details on enabling platform metrics, please refer to [Enable Monitoring]({{< relref "/nginxaas-azure/monitoring/enable-monitoring.md">}}).
+
 ## April 22, 2025
 
 ### What's New
@@ -45,13 +52,6 @@ NGINX App Protect WAF is now generally available and is no longer a preview feat
 
 See the [Supported Regions]({{< ref "/nginxaas-azure/overview/overview.md#supported-regions" >}}) documentation for the full list of regions where NGINXaaS for Azure is available.
 
-## TODO: March XX, 2025
-
-- {{% icon-resolved %}} **Azure Monitor Platform Metrics**
-
-   NGINXaaS now publishes platform metrics directly to Azure Monitor. Legacy monitoring based on custom metrics is deprecated, and we strongly recommend migrating your alerts to use platform metrics for improved monitoring and management. For more details on enabling platform metrics, please refer to [Enable Monitoring]({{< relref "/nginxaas-azure/monitoring/enable-monitoring.md">}}).
-
-
 ## March 13, 2025
 
 - {{% icon-resolved %}} **Percentage capacity metric**

content/nginxaas-azure/monitoring/metrics-catalog.md

@@ -44,6 +44,9 @@ The metrics are categorized by the namespace used in Azure Monitor. The dimensio
 | nginxaas.maxmind      | status         | count    | The status of any MaxMind license in use for downloading geoip2 databases. Refer to [License Health]({{< ref "/nginxaas-azure/quickstart/geoip2.md#monitoring" >}}) to learn more about the status dimension.                                                                                                                 | deployment      |
 | waf.enabled      |          | count | Current status of Web Application Firewall on the deployment.  | deployment      |
 | ports.used      |          | count | The number of listen ports used by the deployment during the aggregation interval. | deployment      |
+| system.listener_backlog.max| listen_addr, file_desc | count | The fullness (expressed as a fraction) of the fullest backlog queue. | deployment |
+| system.listener_backlog.length| listen_address, file_desc | count | The number of items in a specific backlog queue, labelled by listen address. | deployment |
+| system.listener_backlog.queue_limit| listen_address, file_desc | count | The capacity of a specific backlog queue, labelled by listen address. | deployment |
 
 {{</bootstrap-table>}}
 
@@ -250,9 +253,6 @@ The metrics are categorized by the namespace used in Azure Monitor. The dimensio
 | system.interface.packets_sent| interface | count | System Interface Packets Sent. | deployment |
 | system.interface.total_bytes| interface | count | System Interface Total Bytes,  sum of bytes_sent and bytes_rcvd. | deployment |
 | system.interface.egress_throughput| interface | count | System Interface Egress Throughput, i.e. bytes sent per second| deployment |
-| system.listener_backlog.max| listen_addr, file_desc | count | The fullness (expressed as a fraction) of the fullest backlog queue. | deployment |
-| system.listener_backlog.length| listen_address, file_desc | count | The number of items in a specific backlog queue, labelled by listen address. | deployment |
-| system.listener_backlog.queue_limit| listen_address, file_desc | count | The capacity of a specific backlog queue, labelled by listen address. | deployment |
 
 {{</bootstrap-table>}}