Hedge 220: The Cost of the Cloud

Cloud services are all the rage right now, but are they worth it? There are many aspects to the question, and the answer is almost always going to be “it depends.” Do you really need to spin up capacity more quickly than you can buy hardware and get it running? Do you really need to be able to spin capacity down without leaving any hardware behind? Is cloud really the best use of your team’s time and talent?

Hedge 219: Are We There Yet?

We’ve been talking about many of the same things in networking since the late 1980s–autonomous, self-driving, autonomic, etc.–and yet … those things all still seem like some sort of Jetson’s cartoon episode. Why aren’t we there yet? Are these even the right goals?

Hedge 218: Longer than /24’s

Most providers will only accept a /24 or shorter IPv4 route because routers have always had limited amounts of forwarding table space. In fact, many hardware and software IPv4 forwarding implementations are optimized for a /24 or shorter prefix length. Justin Wood joins Tom Ammon and Russ White to discuss why the DFZ might need to be expanded to longer prefix lengths, and the tradeoffs involved in doing so.

Hedge 217: Doug Madory and BGP Security Incidents

We hear a lot about BGP security incidents–but what is really going on? How often do these happen, and how much damage do they do? Doug Madory, who monitors these things for Kentik, joins Russ White and Tom Ammon to talk about BGP security in the wild.

Hedge 216: Automation Success Stories

One thing we often hear about automation is that its hard because there are so many different interfaces. On this episode of the Hedge,
Daniel Teycheney joins Ethan Banks and Russ White to discuss how they started from a simple idea and ended up building an automation system that does cross vendor boundaries within a larger discussion about automation and APIs.

Hedge 215: Old Engineering Quotes

Reading people from the past can sometimes show us where today’s blind spots are–but sometimes we can just find the blind spots of the people who lived then. In this episode of the Hedge, Tom, Eyvonne, and Russ finish going through a selection of quotes from an engineering book published in 1911. This time, we find there are some things to agree with, but also some to disagree with.

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