A few weeks ago we published an interesting discussion on network operating system details based on an excellent set of questions by James Miles.

Unfortunately we got so far into the weeds at that time that we answered only half of James’ questions. In the second Q&A session Dinesh Dutt and myself addressed the rest of them including:

• How hard is it to virtualize network devices?
• What is the expected performance degradation?
• Does it make sense to use containers to do that?
• What are the operational implications of running virtual network devices?
• What will be the impact on hardware vendors and networking engineers?

And of course we couldn’t avoid the famous last question: “Should network engineers program network devices?”

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