A perfSONAR User's Group

Fault Isolation and Mitigation

Per-Packet Provenance Part 2: Non-delivered Packets In nuttcp/iperf3 UDP Tests

As I mentioned in Part 0, the point in this series of posts is to observe what we normally refer to as “packet loss” but rather than simply declaring packets “lost”, we find out what happened to them. Back in November, 2016, I took advantage of some time with a test network that our group […]

Per-Packet Provenance, Part 1: Managing Burst Size To Sidestep Queue Drops

[I’m reporting on work done with the guidance of Darrell Newcomb, and the assistance of John Hess (John guided me too, but that was on other stuff). I should probably also acknowledge the others who have no doubt told me about this in a presentation somewhere, or elsewhere, and I forgot about it.] [update: although […]