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A guide to Docker container networking

Brandon Butler | Sept. 17, 2015
Despite all the hype about containers, the application packaging technology is still evolving, especially as relates to networking.

Technology is the easy part

Scott Johnston
Docker SVP of Product Scott Johnston says when it comes to container networking, the technology is the easy part. Credit: Docker

Johnston says these technology capabilities are the easy part. Getting developers that build apps in containers and the IT shop who will run them on the same page is an even bigger challenge.

Containerized apps have very different characteristics from traditional enterprise apps. Whereas in the past IT’s goal was to provide resilient systems that would not fail, now the priority is to provide instant-on capacity and agile, flexible networks.

“From a networking perspective, application delivery and performance is tied to how well the network infrastructure is able to support these new apps and use cases,” says Ken Owens, CTO of Cisco’s Cloud Infrastructure Services. “The role of the network engineer is to think about how things like programmable networking and software defined networking, network function virtualization can help.”

These tools allow for the automatic provisioning of network resources – instead of manual provisioning – which could soon be table-stakes requirements for organizations that truly embrace these new application paradigms.

 

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