by Darius Kazemi, September 9 2019

In 2019 I'm reading one RFC a day in chronological order starting from the very first one. More on this project here. There is a table of contents for all my RFC posts.

New week, same numbers

RFC-252 is titled “Network Host Status”. It's authored by Ellen Westheimer of BBN and dated October 8, 1971.

The technical content

This is another report from BBN on the status of various ARPANET hosts in the same series as RFC-235 and RFC-240.

The numbers this time

These are essentially the same results network-wide as the last time these measurement were taken, though the pool of measurements is smaller because this report covers only seven days instead of ten.


Wow the 1990s transcription of this report is bad. It gets Westheimer's last name wrong in the title page, and on subsequent headers her name is listed as... Wnetheimer.

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About me

I'm Darius Kazemi. I'm an independent technologist and artist. I do a lot of work on the decentralized web with ActivityPub, including a Node.js reference implementation, an RSS-to-ActivityPub converter, and a fork of Mastodon, called Hometown. You can support my work via my Patreon.