On 8/27/2018 12:11 PM, Miguel Lavalle wrote:
Isn't multiple port binding what we need in the case of ports? In my mind, the big motivator for multiple port binding is the ability to change a port's backend
Hmm, yes maybe. Nova's usage of multiple port bindings today is restricted to live migration which isn't what we're supporting with the initial cross-cell (cold) migration support, but it could be a dependency if that's what we need.
What I was wondering is if there is a concept like a port spanning or migrating across networks? I'm assuming there isn't, and I'm not even sure if that would be required here. But it would mean there is an implicit requirement that for cross-cell migration to work, neutron networks need to span cells (similarly storage backends would need to span cells).
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