Re: Magic numbers
Henrik Frystyk Nielsen <[email protected]> Fri, 23 Aug 2002 11:00:00 -0700
| Newsgroups | gmane.comp.windows.devel.dime |
|---|---|
| Message-ID | <79107D208BA38C45A4E45F62673A434D08A34C89@red-msg-07.redmond.corp.microsoft.com> |
I think you will have enough information either directly or within the context in which you are communicating to determine that something is DIME. Said in another way, I would not have to rely on a magic number to determine this due to the low degree of reliability one can associate with such a number. Henrik >Version and magic number are different. > >IP headers start with a 4-bit version number (RFC791, still at=20 >0x4). The magic number "IP" is defined in the encapsulation=20 >(e.g., in RFC894 for Ethernet, still at 0x0800). > >So the answer to "Does DIME need version?" is Yes, and the=20 >question about magic numbers is "What will be the=20 >encapsulation layers for DIME, and does they have sufficient=20 >meta-data expressive power to say 'DIME'?"