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Looking Glass, a Hand-Picked Feed of Networking News

routerjockey now has a curated networking news feed. A few links a week, picked by hand, each with the source's own excerpt and a link straight to the original. It has its own RSS feed.

Tony Mattke · 2026.11.05 · 2 min read

A looking glass, in networking terms, is a server that lets you see another network’s routing table without logging in to their routers. The Tool Rack has a whole section of them, from NLNOG’s to Hurricane Electric’s. The new Looking Glass section on this site does the same job for what other people in the industry are publishing.

It’s a short list. I add a handful of links a week, more when there’s a lot worth reading and fewer when nothing catches my eye. Each one is something I’d send to a friend who does this for a living. Vendor blogs make the cut when they explain how something works. Podcasts make it when the episode is news. Press releases usually don’t.

How it works

Pick a headline on the left and the excerpt opens on the right. The excerpt is always the publisher’s own words, usually the summary they wrote for their own RSS feed, and it’s never the whole article. The green button sends you to the original, because the people who wrote it should get the visit.

You can filter by topic, and every item has its own link if you want to share one. On a keyboard, j and k step through the list and o opens the article. On a phone, the list comes first and tapping a headline opens the excerpt.

The list keeps the 50 most recent links, and nothing stays up longer than six months. Older links drop off as new ones come in, in both the reader and the RSS feed.

I don’t add commentary. If I have something to say about a story, it’ll be a post.

Subscribing

Looking Glass has its own RSS feed at /looking-glass/feed.xml. It’s separate from the main routerjockey feed on purpose. Subscribe to it in your feed reader if you want the links, or skip it and keep getting just my posts.

The newsletter doesn’t change. It still sends one email when a new post lands, and Looking Glass links never go out by email.

The headlines also show up on the front page, in the right column under the series list.

Suggestions welcome

If you read something this week that belongs here, send it to me.

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