The Hedge 83: Bruce Davie and the System View

Network engineers tend to look at the world through the lens of a single device—an individual appliance, sold by a vendor, with a well-developed CLI for configuration and maintenance. Networks, however, are the “odd person out” in the world of information technology. In the broader technology world, a stronger systems-oriented view is more common. In this episode of the Hedge, Bruce Davie joins Tom Ammon and Russ White to discuss a systems view of the world, as well as a new publishing model he’s working on, and some thoughts on the place of SDN.

How the Internet Really Works, Part 1

I’m a bit late posting this … but this Thursday (an odd day for me) I’m running How the Internet Really Works, Part 1, over at Safari Books Online. From the page:

This live training will provide an overview of the systems, providers, and standards bodies important to the operation of the global Internet, including the Domain Name System (DNS), the routing and transport systems, standards bodies, and registrars. For DNS, the process of a query will be considered in some detail, who pays for each server used in the resolution process, and tools engineers can use to interact DNS. For routing and transport, the role of each kind of provider will be considered, along with how they make money to cover their costs, and how engineers can interact with the global routing table (the Default Free Zone, of DFZ). Finally, registrars and standards bodies will be considered, including their organizational structure, how they generate revenue, and how to find their standards.

The Effectiveness of AS Path Prepending (1)

Just about everyone prepends AS’ to shift inbound traffic from one provider to another—but does this really work? First, a short review on prepending, and then a look at some recent research in this area.


Ambiguity and complexity: once more into the breach


Weekend Reads 050121


The Hedge 81: Jana Iyengar and QUIC

2010 Maastricht (55)_sq

Stop (Maastricht)

2018 oxford (2)_sq

Tree (Oxford)

2010 Maastricht (37)_sq

Alley (Maastricht)