Telilabs
Notes and long-form technical writing, kept as a searchable reference.
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OSI Model - The Internet Is Just Envelopes Thrown Away at Every Router
I thought a packet was a little object that physically travels from my laptop to a server. It isn't. Only frames move — and they die at every hop.
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Observability - A Counter in RAM, an ID in a Header, and a Batch Export
I thought observability was a logging system with fancy analysis on top. It isn't — and the difference lives at emission time, not in the dashboard.