NAT Gateway Monitoring Metrics
Last updated: 2025-08-25 10:56:52
Namespace
Namespace=QCE/NAT_GATEWAY
Monitoring Metrics
Metric Name | Metric Meaning | Description | Unit | Dimension | Statistical Method [period, statType] |
OutBandwidth | Outbound public network bandwidth | Outbound NAT Gateway bandwidth | Mbps | natId | [10s, sum] [60s, sum] [300s, max] [3600s, max] [86400s, max] |
InBandwidth | Inbound public network bandwidth | Inbound NAT Gateway bandwidth | Mbps | natId | [10s, sum] [60s, sum] [300s, max] [3600s, max] [86400s, max] |
WanOutDropPkg | Packet loss of outbound public network bandwidth | Packets dropped due to the outbound NAT Gateway bandwidth exceeding the outbound bandwidth caps | pps | natId | [10s, sum] [60s, sum] [300s, max] [3600s, max] [86400s, max] |
WanInDropPkg | Packet loss of inbound public network bandwidth | Packets dropped due to inbound NAT Gateway bandwidth exceeding the inbound bandwidth caps | pps | natId | [10s, sum] [60s, sum] [300s, max] [3600s, max] [86400s, max] |
OutPkg | Outbound public network packets | Average number of outbound packets per second on the NAT Gateway | count | natId | [10s, sum] [60s, sum] [300s, max] [3600s, max] [86400s, max] |
InPkg | Inbound public network packets | Average number of inbound packets per second on the NAT Gateway | count | natId | [10s, sum] [60s, sum] [300s, max] [3600s, max] [86400s, max] |
PpsWanOutDropPkg | Packets dropped due to outbound packets exceeding caps | Packets dropped due to outbound packets per second on the NAT Gateway exceeding the PPS cap (applicable only to Standard NAT Gateway) | count | natId | [60s, sum] [300s, max] [3600s, max] [86400s, max] |
PpsWanInDropPkg | Packets dropped due to inbound packets exceeding caps | Packets dropped due to inbound packets per second on the NAT Gateway exceeding the PPS cap (applicable only to Standard NAT Gateway) | count | natId | [60s, sum] [300s, max] [3600s, max] [86400s, max] |
Conns | Concurrent connections | Real-time concurrency quantity on the NAT Gateway | - | natId | [10s, max] [60s, max] [300s, max] [3600s, max] [86400s, max] |
Droppkg | Packets dropped due to connections exceeding limits | Total packets dropped due to NAT Gateway connections exceeding the specified limit | - | natId | [60s, last] [300s, last] [3600s, last] [86400s, last] |
ConnsUsage | Concurrent connection utilization | Real-time concurrent connections of the NAT Gateway as a percentage of the maximum concurrent connection limit for the instance specifications | % | natId | [60s, expr] [300s, max] |
Egressbandwidthusage | Outbound public network bandwidth utilization | Outbound bandwidth of the NAT Gateway as a percentage of the outbound bandwidth cap for the instance specifications | % | natId | [60s, expr] [300s, max] |
WanInByteUsage | Inbound public network bandwidth utilization | Inbound bandwidth of the NAT Gateway as a percentage of the inbound bandwidth cap for the instance specifications | % | natId | [60s, expr] [300s, max] |
IncreasedConnNum | New connections | Average new connections per second (applicable only to Standard NAT Gateway) | - | natId | [60s, max] [300s, max] [3600s, max] [86400s, max] |
IncreasedConnUsage | New connection utilization | New connections of the NAT Gateway as a percentage of the maximum new connection limit for the instance specifications (applicable only to Standard NAT Gateway) | % | natId | [60s, expr] [300s, max] |
ActiveConns | Active connections | Active connections (applicable only to Standard NAT Gateway) | - | natId | [60s, max] [300s, max] [3600s, max] [86400s, max] |
InactiveConns | Inactive connections | Inactive connections (applicable only to Standard NAT Gateway) | - | natId | [60s, expr] [300s, max] |
SnatConnDropPkg | Packets dropped due to port allocation failures | Packets dropped due to port allocation failures caused by exceeding the connection limit when accessing the same destination endpoint Note: A single EIP provides a finite number of ports for SNAT allocation. Port allocation failures can occur if the concurrent connections to the same destination endpoint exceed the limit and the number of EIPs configured in the SNAT rule is insufficient. If port allocation fails and packet loss keeps increasing, it is recommended to add more EIPs to the SNAT rule configuration. | - | natId | [60s, sum] [300s, sum] |
ConnsDropRate | Concurrent connection drop rate | Packet loss rate when concurrent connections exceed the product specification limit | Count/s | natId | [60s, expr] [300s, max] |
IncreasedConnDropRate | New connection drop rate | Packet loss rate when the new connection rate exceeds the product specification limit (applicable only to Standard NAT Gateway) | Count/s | natId | [60s, expr] [300s, max] |
WanCarrierInBandwidth | Inbound scheduling service bandwidth | Inbound bandwidth for the scheduling service (applicable only to Traditional NAT Gateway) | Mbps | natId | [60s, sum] [300s, sum] [3600s, sum] [86400s, sum] |
WanCarrierOutBandwidth | Outbound scheduling service bandwidth | Outbound bandwidth for the scheduling service (applicable only to Traditional NAT Gateway) | Mbps | natId | [60s, sum] [300s, sum] [3600s, sum] [86400s, sum] |
Note:
The statistical granularity (
period) may vary by metric. The DescribeBaseMetrics API can be used to obtain the period supported by each metric.Overview of the Parameters in Each Dimension
Parameter Name | Dimension Name | Dimension Description | Format |
Instances.N.Dimensions.0.Name | natId | Dimension name of the NAT gateway ID | Enter a string-type natId dimension name |
Instances.N.Dimensions.0.Value | natId | A specific NAT gateway ID | Enter a specific natId, such as nat-4d545d |
Input Parameters
To query the monitoring data of a NAT gateway in a VPC instance, use the following input parameters:
&Namespace=QCE/NAT_GATEWAY
&Instances.N.Dimensions.0.Name=natId
&Instances.N.Dimensions.0.Value=A specific NAT gateway ID
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