jcollas@XN.LL.MIT.EDU (Juan Collas) (07/08/87)
People, I've been reading the ULANA spec, and am curious about the SNAP protocol, mentioned twice but never defined. What is it? There's supposed to be an RFC for it, but I can't find that either. (ULANA is the Air Force's Unified LAN Architecture Phase I.) Any knowledgeable types out there? -Juan Collas, MIT Lincoln Labs
melohn@SUN.COM.UUCP (07/09/87)
Refer to pages 12-13 of the latest "Assigned Numbers" RFC1010. I'm in the process of revising RFC948 to include the information about SNAP encoding worked out last fall in Monterey.
STJOHNS@SRI-NIC.ARPA (07/10/87)
Without reading the document, I'd guess that SNAP stands for "Sub Network Access Protocol". and as such refers to not one, but several protocols including the Etherenet, DDN X.25 and AHIP, Hyperchannel, Proteon ring... etc... Mike
jac@UMD5.UMD.EDU (Joseph A. Cimmino Jr.) (07/11/87)
It's been a long time since I've looked at the ULANA spec, but the SNAP you're intersted in may be the "SubNetwork Access Protocol" that is used to encapsulate IP/ARP on IEEE 802 LANS. Snap is used on the IBM Token Ring in the IBM implementation of PC/IP. See RFC-990 "Assigned Numbers", page 36, section on IEEE numbers of interest for a spec. There may also be an RFC on SNAP itself and/or a later issue of "Assigned Numbers". Hope this is a helpful start. /joe ------------------------------ Joseph A. Cimmino, Jr. University of Maryland, Systems jac@umd5.umd.edu 1+ 301 454 2946 PC/IP Group cimminoj@umdd.bitnet Bertolt Brecht: You made your bed, so you lie in it.