Hello, I am looking to learn how neutron agent (probably L3) calculates a new routing path when VM on compute node wants to communicate with some destination. Does it use neutron API to learn about network topology or it uses its internal structures to simulate path resolving like in real network? If the latter is correct, then what happens when a network topology is changed in neutron DB (due user intervention for by other actions) and the "local" data is invalid?
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