[Nmc-wg] NMC Ma document review

Hi all! I have reviewed the document and have one question. Section 4 is DataInfo message type. As wiki says it is probably used only in pSPS. In geant perfsonar MA services (SQL MA nad RRD MA) don't use it and actually I don't know anything about this type of message. Could you tell me what is used for? And should we implement it in our services to be compatible with pSPS or it is not obligatory message type? Regads Piotr Pikusa PSNC