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The Question is: What does the layering of a DECnet packet look like? We are running DECnet over IP and want to be able to use our home grown 'snoop' program to identify the contents of packets. In order to do this I need to know the size and fields in the DECnet structure (e.g. the TCP header is 20 bytes with a 16 bit source port field, 16 bit destination port field ...) Thanks, Mike The Answer is : The DECnet Phase IV data structures are defined in the available architecture documentation -- see the OpenVMS FAQ for pointers. The DECnet-Plus Architecture documentation is not as readily available, though the OSI stack is standards-compliant, as is the use of RFC 1859 for DECnet over IP and RFC 1006 for OSI over IP.
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