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Was MPLS Necessary?
One of the objectives of the original “Computer Networks: A Systems Approach” book was to treat networking not as a series of artifacts that are handed…
Bruce Davie
Feb 14
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TCP x 5G: Mind the Gap
The mobile cellular network and the Internet evolved in parallel, with each treating the other as a black box. Each generation of the cellular network…
Larry Peterson
Dec 20, 2021
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Decentralizing Cellular Networks
This week we’re turning our attention to the possible decentralization of the “mobile packet core”, which promises a significant departure from how…
Bruce Davie
Apr 11
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Why APIs Matter
APIs (application programming interfaces) are no longer just a technical detail of interest to computer scientists. Banks, for example, are launching…
Bruce Davie
May 9
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Overtaken By Events
Whatever Came of the NFV Initiative? Since our recent posts have been retracing the history (and recounting the lessons) of SDN, it seems like a good…
Larry Peterson
Mar 28
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What OpenFlow Teaches Us About Innovation
This week marks the 13th anniversary of Nick McKeown’s influential paper proposing OpenFlow as an interface to open the network to more innovation. The…
Larry Peterson
Mar 29, 2021
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Always in the Kitchen at Parties
Late last year I was invited to present a keynote at the Euro P4 Workshop, and I took the opportunity to revisit a topic that has held my attention for…
Bruce Davie
Jan 17
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SDN and the Alignment of Planets
We’ve been involved in some exciting moments as we’ve watched the networking landscape over the last forty-or-so years. It’s often only with hindsight…
Bruce Davie
Mar 14
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SDN and the Alignment of Planets
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The Source of Truth Moves to the Edge
The most rewarding experience of my 30+ year research career was building and running PlanetLab, which I reflected upon when we decommissioned it last…
Larry Peterson
Nov 8, 2021
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TCP Congestion Control: Acceptable Unfairness
This week we’ve posted a reasonably complete draft of our congestion control book, which has reminded us once again what a long and rich history the…
Larry Peterson
Oct 11, 2021
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Narrow Waists and Big Ideas
One of the things we try to do in all of our books is highlight the system design principles illustrated by specific technologies. In our main book…
Larry Peterson
Apr 25
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What can we learn from Internet outages?
Now that we have had a couple of weeks to look back on the great Facebook Outage of 2021, and it’s not looking like much more detail will be…
Bruce Davie
Oct 25, 2021
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