Comment 5 for bug 1574631

When l3 agent starts up it will rebuild all routers. First it deletes all namespaces. Second it calls rpc to get routers assigned to it. Third it creates namespaces for routers it get. The problem is that the rpc returns null to l3 agent. So the router is not rebuilt. On receiving a getting router rpc, neutron server will first call router scheduler to assign routers to l3 agent. For router scheduler is not enabled, the routers can't be assigned to l3 agent. Therefor, when the rpc get router assigned to it, it gets a none result.

This problem will be solved by enable the router scheduler.