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On 14.11.2012 06:10, Dan Wendlandt wrote:
> One way for addressing both the limitations you mention above (VLAN 
> limits,
> and requiring large physical broadcast domains) is to use a L2-in-L3
> "overlay tunneling".  Overlay tunneling provides isolation without 
> using
> VLANs, and allows VMs to communicate at L2 even when the computes 
> nodes
> they are on are not on the same physical L2 network.  In the Folsom 
> release
> of Quantum, both the OVS plugin and Nicira NVP plugin include support 
> for
> this type of overlay tunneling.

Hi Dan,

Thanks for clarification. It's also what I've come to suspect from 
various documentation; this should be made more clear for people who are 
not developers or network engineers.

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