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Feature #14177

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tcprtt Measures the TCP handshake RTT using the stats(9) statistics framework

Added by Ryan Whitlock over 1 year ago. Updated over 1 year ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Gateway Monitoring
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Default

Description

My coworker thought using 8.8.8.8 for the gateway monitor would suffice for a “is the internet up” monitor. Well, google rate limited us and I spent hours looking for the right approach.

Ultimately, it seems using ICMP for monitoring against public DNS, NTP, etc. servers is the wrong approach for some use-cases. Cisco’s IP SLA has the ability to perform a number of health checks from many protocols, so I set out to find something comparable for FreeBSD. Tcprtt looks like it could be a good solution for internet uptime monitoring that does not rely on ICMP.

Does this seem like a viable solution?

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