Port Exhaustion Troubleshooter

A practical, interactive troubleshooting tool for engineers dealing with port exhaustion, ephemeral port limits, NAT/PAT translation table saturation, TIME_WAIT buildup, CLOSE_WAIT leaks, and related connection-failure patterns.

Includes a Quick Triage checklist that feeds a copy-to-clipboard ticket summary, a Symptom Decoder table mapping observable failures to root causes, platform-specific command references with copy buttons for Windows (netstat, Get-NetTCPConnection, netsh), Linux (ss, sysctl, conntrack, lsof), and Cisco IOS/ASA/FTD (show ip nat statistics, show xlate, show conn), a Packet Capture section with Wireshark filters and tcpdump examples, a Port Exhaustion Estimator that calculates sustainable connections per second from your port range and session lifetime, and a layered Recommended Actions reference covering application, OS, network, and monitoring remediations. No external API calls, no auth, no telemetry.