def adjacency(self):
        for n in self.adj:
            yield (n, set(self.adj) - set(self.adj[n]) - set([n]))
Return internal router port based on subnet_id.
dataset/ETHPy150Open networkx/networkx/networkx/algorithms/approximation/kcomponents.py/_AntiGraph.adjacency--crossover with--dataset/ETHPy150Open openstack/neutron/neutron/agent/l3/dvr_local_router.py/DvrLocalRouter._get_internal_port