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Wednesday, April 17 • 3:40pm - 4:20pm
Layer 3 Networks

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OpenStack Networking networks are currently flat L2 domains - every machine can reach every other machine in one hop, the domain is a broadcast domain and OpenStack Networking's task is to ensure this holds true regardless of where VMs are placed. Limitations on L2 networks hold true - L2 networks are not great at scaling, which is why there's an 'inter' in 'internet', and joining these networks together involves various sorts of encapsulation.

We can add simple layer 3 networks to OpenStack Networking. The network is no longer flat, scales better and has significant advantages for public-facing services, and standard internet routing holds sway with no encaps; it has significant advantages when you're willing to lose L2 and the features that depend upon it.

We will discuss how we could do this with a minimum of complexity, and why it's a good idea.

(Session proposed by Kyle Mestery)


Wednesday April 17, 2013 3:40pm - 4:20pm
B114

Attendees (118)