When a client requests a list of attributes what should the server behaviour be when an attribute is repeated more than once? The specification is silent on this topic. The current set of behaviours for servers are: 1) return only one result 2) return copy of the result for each request 3) reject the request returning OPERATION_FAILED I think the behaviour here should be well defined and not open to interpretation especially where this may imply a limitation on what the client can send to the server. My view at least is that 1) is the 'right' behaviour although the current version of our C based KMIP server does 1) and our Java based KMIP server does 2). Tim.