ODU connection name is too long

Currently when an ODU connection between the network side and the client side is provisioned, it concats the service name to these interfaces and it becomes too long.

Though the current MSA does not have any limitation on the string length, it would be preferred not keep it too long. In fact some devices in the lab do complain about being that long.

In the long run, when the string length limitations are brought in, it could be problematic.