David, Just as a data point ..
All of current running production data centers and those which I am working on to be shortly deployed assume NVE (Network Virtualization Edge) like functionality is embedded within the end-host.
It can be a form of prioprietary softswitch, opensource softswitch or any other flavor of kernel module acting as such softswitch.
I am not stating everyone does the same .. some may use TOR as a softswitch or even furthere though.
But as one requirement I am very interested in making sure the real use case of embedded softswitch in the end system is captured and documented in the problem statement document.
Thx, R.
Actually I do not see that those two are need to be decoupled. Linux kernel with some additional enhancement module can act as NVE. Tenants are just connected to the NVE over normal bridge interfaces by the co-located hypervisor.The salient question is not what's possible, but what's actually being done ("running code"), as nvo3 can't succeed if it requires major hypervisor rewrites. Linux is not the system that supports hypervisors. The Cisco Nexus 1000V softswitches are examples where there is a strong decoupling and that softswitch is available for at least two non-Linux hypervisors, suggesting similar decoupling in the system architectures for those hypervisors. Thanks, --David
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