--- title: Alibaba Cloud NLB description: >- Monitor Alibaba Cloud NLB connection counts, traffic throughput, packet rates, and backend server health. breadcrumbs: Docs > Integrations > Alibaba Cloud NLB --- > For the complete documentation index, see [llms.txt](https://docs.datadoghq.com/llms.txt). # Alibaba Cloud NLB Integration version1.0.0 {% callout %} # Important note for users on the following Datadog sites: us2.ddog-gov.com {% alert level="info" %} To find out if this integration is available in your organization, see your [Datadog Integrations](https://app.datadoghq.com/integrations) page or ask your organization administrator. To initiate an exception request to enable this integration for your organization, email [support@ddog-gov.com](mailto:support@ddog-gov.com). {% /alert %} {% /callout %} ## Overview{% #overview %} Alibaba Cloud NLB (Network Load Balancer) is a Layer 4 load balancing service that distributes high volumes of network traffic across multiple backend servers with high performance and low latency. This integration allows you to monitor connection counts, traffic throughput, packet rates, and backend server health for your NLB instances by collecting metrics from the Alibaba Cloud NLB service. ## Setup{% #setup %} ### Installation{% #installation %} After you set up the [Alibaba Cloud](https://docs.datadoghq.com/integrations/alibaba_cloud.md) integration, ensure that the NLB service is included in your Alibaba Cloud monitoring configuration. ## Data Collected{% #data-collected %} ### Metrics{% #metrics %} | | | | | **alibabacloud.nlb.active_connection.average**(gauge) | Number of active connections on the listener.*Shown as connection* | | **alibabacloud.nlb.consumed_lc_us.value**(gauge) | Number of load balancer capacity units (LCUs) consumed by the NLB instance.*Shown as unit* | | **alibabacloud.nlb.drop_connection.average**(rate) | Number of dropped connections per second on the listener.*Shown as connection* | | **alibabacloud.nlb.drop_packet_rx.average**(rate) | Number of dropped inbound packets per second on the listener.*Shown as packet* | | **alibabacloud.nlb.drop_packet_tx.average**(rate) | Number of dropped outbound packets per second on the listener.*Shown as packet* | | **alibabacloud.nlb.drop_traffic_rx.average**(rate) | Number of dropped inbound bits per second on the listener.*Shown as bit* | | **alibabacloud.nlb.drop_traffic_tx.average**(rate) | Number of dropped outbound bits per second on the listener.*Shown as bit* | | **alibabacloud.nlb.inactive_connection.sum**(gauge) | Number of inactive connections on the listener.*Shown as connection* | | **alibabacloud.nlb.instance_active_connection.average**(gauge) | Number of active connections on the NLB instance.*Shown as connection* | | **alibabacloud.nlb.instance_drop_connection.average**(rate) | Number of dropped connections per second on the NLB instance.*Shown as connection* | | **alibabacloud.nlb.instance_drop_packet_rx.average**(rate) | Number of dropped inbound packets per second on the NLB instance.*Shown as packet* | | **alibabacloud.nlb.instance_drop_packet_tx.average**(rate) | Number of dropped outbound packets per second on the NLB instance.*Shown as packet* | | **alibabacloud.nlb.instance_drop_traffic_rx.average**(rate) | Number of dropped inbound bits per second on the NLB instance.*Shown as bit* | | **alibabacloud.nlb.instance_drop_traffic_tx.average**(rate) | Number of dropped outbound bits per second on the NLB instance.*Shown as bit* | | **alibabacloud.nlb.instance_inactive_connection.average**(gauge) | Number of inactive connections on the NLB instance.*Shown as connection* | | **alibabacloud.nlb.instance_max_connection.average**(gauge) | Maximum number of concurrent connections on the NLB instance.*Shown as connection* | | **alibabacloud.nlb.instance_new_connection.average**(rate) | Number of new connections per second on the NLB instance.*Shown as connection* | | **alibabacloud.nlb.instance_packet_rx.average**(rate) | Number of inbound packets per second on the NLB instance.*Shown as packet* | | **alibabacloud.nlb.instance_packet_tx.average**(rate) | Number of outbound packets per second on the NLB instance.*Shown as packet* | | **alibabacloud.nlb.instance_traffic_rx.average**(rate) | Number of inbound bits per second on the NLB instance.*Shown as bit* | | **alibabacloud.nlb.instance_traffic_tx.average**(rate) | Number of outbound bits per second on the NLB instance.*Shown as bit* | | **alibabacloud.nlb.instance_unhealthy_server_count.sum**(gauge) | Number of unhealthy backend ECS instances found by the NLB instance's health check.*Shown as instance* | | **alibabacloud.nlb.listener_heathy_server_count.minimum**(gauge) | Number of healthy backend ECS instances found by the listener's health check.*Shown as instance* | | **alibabacloud.nlb.listener_heathy_server_count.average**(gauge) | Number of healthy backend ECS instances found by the listener's health check.*Shown as instance* | | **alibabacloud.nlb.listener_packet_rx.average**(rate) | Number of inbound packets per second on the listener.*Shown as packet* | | **alibabacloud.nlb.listener_packet_tx.average**(rate) | Number of outbound packets per second on the listener.*Shown as packet* | | **alibabacloud.nlb.listener_server_group_unhealthy_server_count.average**(gauge) | Number of unhealthy backend servers in a server group under the listener.*Shown as instance* | | **alibabacloud.nlb.listener_unhealthy_server_count.maximum**(gauge) | Number of unhealthy backend ECS instances found by the listener's health check.*Shown as instance* | | **alibabacloud.nlb.max_connection.average**(gauge) | Maximum number of concurrent connections on the listener.*Shown as connection* | | **alibabacloud.nlb.new_connection.average**(rate) | Number of new connections per second on the listener.*Shown as connection* | | **alibabacloud.nlb.nlb_instance_heathy_server_count.sum**(gauge) | Number of healthy backend servers found by the NLB instance's health check.*Shown as instance* | | **alibabacloud.nlb.peak_lc_us.value**(gauge) | Maximum number of load balancer capacity units (LCUs) used by the NLB instance at a point in time. Applies only when resource reservation is in use.*Shown as unit* | | **alibabacloud.nlb.real_server_reset_packet.average**(rate) | Number of inbound RST packets sent by the backend server via the VIP per second.*Shown as packet* | | **alibabacloud.nlb.reserved_lc_us.value**(gauge) | Number of load balancer capacity units (LCUs) reserved for the NLB instance under resource reservation.*Shown as unit* | | **alibabacloud.nlb.server_group_active_connection.average**(gauge) | Number of active connections on the server group.*Shown as connection* | | **alibabacloud.nlb.server_group_drop_connection.average**(rate) | Number of dropped connections per second on the server group.*Shown as connection* | | **alibabacloud.nlb.server_group_drop_packet_rx.average**(rate) | Number of dropped inbound packets per second on the server group.*Shown as packet* | | **alibabacloud.nlb.server_group_drop_packet_tx.average**(rate) | Number of dropped outbound packets per second on the server group.*Shown as packet* | | **alibabacloud.nlb.server_group_drop_traffic_rx.average**(rate) | Number of dropped inbound bits per second on the server group.*Shown as bit* | | **alibabacloud.nlb.server_group_drop_traffic_tx.average**(rate) | Number of dropped outbound bits per second on the server group.*Shown as bit* | | **alibabacloud.nlb.server_group_inactive_connection.average**(gauge) | Number of inactive connections on the server group.*Shown as connection* | | **alibabacloud.nlb.server_group_max_connection.average**(gauge) | Maximum number of concurrent connections on the server group.*Shown as connection* | | **alibabacloud.nlb.server_group_new_connection.average**(rate) | Number of new connections per second on the server group.*Shown as connection* | | **alibabacloud.nlb.server_group_packet_rx.average**(rate) | Number of inbound packets per second on the server group.*Shown as packet* | | **alibabacloud.nlb.server_group_packet_tx.average**(rate) | Number of outbound packets per second on the server group.*Shown as packet* | | **alibabacloud.nlb.server_group_traffic_rx.average**(rate) | Number of inbound bits per second on the server group.*Shown as bit* | | **alibabacloud.nlb.server_group_traffic_tx.average**(rate) | Number of outbound bits per second on the server group.*Shown as bit* | | **alibabacloud.nlb.traffic_rx_new.average**(rate) | Number of inbound bits per second on the listener.*Shown as bit* | | **alibabacloud.nlb.traffic_tx_new.average**(rate) | Number of outbound bits per second on the listener.*Shown as bit* | | **alibabacloud.nlb.vip_active_connection.average**(gauge) | Number of active connections on the VIP.*Shown as connection* | | **alibabacloud.nlb.vip_client_reset_packet.average**(rate) | Number of inbound RST packets sent by the client via the VIP per second.*Shown as packet* | | **alibabacloud.nlb.vip_drop_connection.average**(rate) | Number of dropped connections per second on the VIP.*Shown as connection* | | **alibabacloud.nlb.vip_drop_packet_rx.average**(rate) | Number of dropped inbound packets per second on the VIP.*Shown as packet* | | **alibabacloud.nlb.vip_drop_packet_tx.average**(rate) | Number of dropped outbound packets per second on the VIP.*Shown as packet* | | **alibabacloud.nlb.vip_drop_traffic_rx.average**(rate) | Number of dropped inbound bits per second on the VIP.*Shown as bit* | | **alibabacloud.nlb.vip_drop_traffic_tx.average**(rate) | Number of dropped outbound bits per second on the VIP.*Shown as bit* | | **alibabacloud.nlb.vip_healthy_server_count.value**(gauge) | Number of healthy backend servers found by the VIP's health check.*Shown as instance* | | **alibabacloud.nlb.vip_inactive_connection.average**(gauge) | Number of inactive connections on the VIP.*Shown as connection* | | **alibabacloud.nlb.vip_max_connection.average**(gauge) | Maximum number of concurrent connections on the VIP.*Shown as connection* | | **alibabacloud.nlb.vip_new_connection.average**(rate) | Number of new connections per second on the VIP.*Shown as connection* | | **alibabacloud.nlb.vip_packet_rx.average**(rate) | Number of inbound packets per second on the VIP.*Shown as packet* | | **alibabacloud.nlb.vip_packet_tx.average**(rate) | Number of outbound packets per second on the VIP.*Shown as packet* | | **alibabacloud.nlb.vip_traffic_rx.average**(rate) | Number of inbound bits per second on the VIP.*Shown as bit* | | **alibabacloud.nlb.vip_traffic_tx.average**(rate) | Number of outbound bits per second on the VIP.*Shown as bit* | ### Events{% #events %} Alibaba Cloud NLB does not include any events. ### Service Checks{% #service-checks %} Alibaba Cloud NLB does not include any service checks. ## Troubleshooting{% #troubleshooting %} Need help? Contact [Datadog support](https://docs.datadoghq.com/help/).