Test network paths with TCP, UDP, and ICMP in Datadog (7 minute read)
Datadog now supports network path testing using TCP, UDP, and ICMP protocols to match real application traffic patterns and diagnose connectivity issues more accurately.
What: A Datadog monitoring feature that allows testing network paths with TCP, UDP, and ICMP protocols rather than just standard HTTP checks, enabling network diagnostics that mirror how applications actually communicate.
Why it matters: Different network protocols behave differently under the same conditions, so testing with the actual protocol your application uses reveals protocol-specific issues like packet loss, latency spikes, or firewall rules that wouldn't show up in generic HTTP health checks.
Takeaway: Configure Datadog network tests using the same protocol your application relies on (TCP for databases, UDP for streaming, ICMP for basic reachability) to improve root cause analysis when connectivity issues arise.
Original article
Designing network tests with protocols like TCP, UDP, or ICMP improves root cause analysis by matching application traffic, revealing latency, packet loss, and reliability issues.