Packet JournalIndependent technical notebook

Networks / systems / observation

Follow the packet.
Question the graph.

Notes from the quiet end of infrastructure: how connections behave, what measurements conceal, and why small details matter.

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From the notebook

Issue 01 / November 2026
01

Measurement · 4 min

A round trip is not a page load

Separating propagation, handshakes and application work before drawing conclusions from a single number.

02

Reliability · 3 min

The cost of starting over

Warm connections, cold starts and the hidden work behind a seemingly simple request.

03

Operations · 4 min

Keep the evidence small

A useful incident record explains one change, one observation and one way back.