Rod LU

There is only one association ConnectionIsContainedByNode between the Node and Conneciton, which means we can not retrieve all the Connections of one Node. Is it possible to add a operation...

There is a requirement to look into the details of ConnectionEndPoint of a Route, like tributary slot information of CEP. But the CEP list of Route entity is a reference....

It is unclear of the meaning of layerProtocolName in ConnectivityService. If one end of a ConnectivityService is ETH, and the other end is ODU, it's unclear the layerProtocolName of this...

There is requirement for returning the error reason when creating a ConnectivityService failed. The error reason can be Not Enough Bandwith, Not Enough Resources, Path Computation Failed etc...