nat/Nat Dropped Received Packet Check

Evaluates NATGW received_packets_dropped metric for issues.

Product:
Step Type: AUTOMATED STEP

Description

This step determines whether the NATGW is dropping packets. NAT gateways could be dropping packets for various reasons; however, the drops are not always indicative of an issue

Success Reason

No received_packet_drop on NAT GW {nat_gateway_name} seen.

Uncertain Reason

Elevated received_packet_drop_count metric noticed for NAT GW {nat_gateway_name} dropped_received_packet: {metric_value}

Uncertain Remediation

NAT gateways could be dropping packets for various reasons; however, the drops are not always indicative of an issue. Checking received_packet_drop metrics at the VM level as well. Open a case to GCP Support for confirmation of the reason for the drops See more on troubleshooting cloud NAT reducing the drops here [1] and [2]: [1] https://cloud.google.com/nat/docs/troubleshooting [2] https://cloud.google.com/knowledge/kb/reduce-received-packets-dropped-count-on-cloud-nat-000006744