Hello everyone! During the last week or so I've spent many hours studying some DECnet traffic because I was willing to better understand its inner working. Well, I've discovered that the session control specification commonly available on the Internet (V1.0) is not the latest, and it seems that another newer version is not readily available. While other DECnet protocols such as DRP and NSP appear to be current (and in facts their description matches actual data captured from the Ethernet), the SCP is obviously different both in formal definition and in practice. For example, the specification states that for V1.0 the version field should be 000 binary, but VMS sets it to 001 and a bit field that should be reserved for future use and always set to zero has actually a meaning (at least one bit seems to be used to signal proxy access requests). So the question is: does anyone here has a copy of a newer session control specification or at least knows which are the the differences between V1.0 and the following (V1.1?) version? Thank you very much, G.