AWS NAT gateway is a Network Address Translation (NAT) service provided by Amazon Web Services, which can be used to connect instances in a private subnet to services outside your VPC, while preventing inbound traffic from the internet from directly reaching those instances. Applications Manager's AWS Nat Gateway monitoring tool provides you with a reliable option to understand the traffic flow and thus ensure optimal performance for your NAT gateways.
To learn how to create a new AWS NAT Gateway monitor, refer here.
Go to the Monitors Category View by clicking the Monitors tab. Click on the NAT Gateway instance available under Amazon in the Cloud Apps section. Displayed is the Amazon NAT Gateway bulk configuration view distributed into three tabs:
By clicking a monitor from the list, you'll be taken to the AWS NAT Gateway dashboard which includes the following tabs:
| Parameter | Description |
|---|---|
| CONNECTION STATISTICS | |
| Connection Attempts (Avg) | The average number of connection attempts made through the NAT gateway between the poll interval. |
| Connection Attempts (Total) | The total number of connection attempts made through the NAT gateway between the poll interval. |
| Connections Established (Avg) | The average number of connections established through the NAT gateway between the poll interval. |
| Connections Established (Total) | The total number of connections established through the NAT gateway between the poll interval. |
| ACTIVE CONNECTIONS | |
| Active Connections | The maximum number of concurrent active TCP connections through the NAT gateway between the poll interval. |
| DATA IN THROUGHPUT | |
| Bytes In From Source | The number of bytes received by the NAT gateway from clients in your VPC between the poll interval (in MB/s). |
| Bytes In From Destination | The number of bytes received by the NAT gateway from the destination between the poll interval (in MB/s). |
| DATA OUT THROUGHPUT | |
| Bytes Out To Source | The number of bytes sent through the NAT gateway to the clients in your VPC between the poll interval (in MB/s). |
| Bytes Out To Destination | The number of bytes sent out through the NAT gateway to the destination between the poll interval (in MB/s). |
| PACKETS IN THROUGHPUT | |
| Packets In from Source | The number of packets received by the NAT gateway from clients in your VPC between the poll interval (in packets/s). |
| Packets In from Destination | The number of packets received by the NAT gateway from the destination between the poll interval (in packets/s). |
| PACKETS OUT THROUGHPUT | |
| Packets Out to Source | The number of packets sent through the NAT gateway to the clients in your VPC between the poll interval (in packets/s). |
| Packets Out to Destination | The number of packets sent out through the NAT gateway to the destination between the poll interval (in packets/s). |
| PEAK BYTES | |
| Peak Bytes | The maximum data throughput in kilo bytes per second, aggregated between the polling interval (in kB/s). |
| PEAK PACKETS | |
| Peak Packets | The maximum packet processing rate per second, based on averages calculated between the polling interval (in packets/s). |
| PACKET DROPS | |
| Packet Drops | The number of packets dropped by the NAT gateway between the poll interval. |
| ERROR PORT ALLOCATION | |
| Error Port Allocation | The number of times the NAT gateway could not allocate a source port between the poll interval. |
| IDLE CONNECTION TIMEOUTS | |
| Idle Connection Timeouts | The number of connections that transitioned from the active state to the idle state between the poll interval. |
| Parameter | Description |
|---|---|
| Name | The name of the NAT gateway. |
| Status | The current state of the NAT gateway. Possible values: Pending, Failed, Available, Deleting, Deleted. |
| Status Message | Additional details about the current state of the NAT gateway, if applicable. |
| Connectivity Type | Indicates whether the NAT gateway supports public or private connectivity. Possible values: private/ public. |
| Subnet ID | The ID of the subnet in which the NAT gateway is located. |
| VPC ID | The ID of the VPC in which the NAT gateway is located. |
| Created Time | The date and time the NAT gateway was created. |
| Deleted Time | The date and time the NAT gateway was deleted, if applicable. |
| Network Interface ID | The ID of the network interface associated with the NAT gateway. |
| Private IP Address | The private IP address assigned to the NAT gateway. |
| Elastic IP Address | The Elastic IP address associated with the NAT gateway. |
