From 4bfd864f10b68b71482b35c818559068ef8d5797 Mon Sep 17 00:00:00 2001 From: Thomas Voss Date: Wed, 27 Nov 2024 20:54:24 +0100 Subject: doc: Add RFC documents --- doc/rfc/rfc6.txt | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 doc/rfc/rfc6.txt (limited to 'doc/rfc/rfc6.txt') diff --git a/doc/rfc/rfc6.txt b/doc/rfc/rfc6.txt new file mode 100644 index 0000000..0a40308 --- /dev/null +++ b/doc/rfc/rfc6.txt @@ -0,0 +1,52 @@ +Network Working Note Steve Crocker, UCLA +RFC-6 10 April 1969 + + + + CONVERSATION WITH BOB KAHN + + + + + +I talked with Bob Kahn at BB&N yesterday. We talked about code conversion +in the IMP's, IMP-HOST communication, and HOST software. + +BB&N is prepared to convert 6, 7, 8, or 9 bit character codes into 8-bit +ASCII for transmission and convert again upon assembly at the destination +IMP. BB&N plans a one for one conversion scheme with tables unique to the +HOST. I suggested that places with 6-bit codes may also want case shifting. +Bob said this may result in overflow if too many case shifts are necessary. +I suggested that this is rare and we could probably live with an overflow +indication instead of a guarantee. + +With respect to HOST-IMP communication, we now have a five bit link field +and a bit to indicate conversion. Also possible is a 2-bit conversion +indicator, one for converting before sending and one for converting after. +This would allow another handle for checking or controlling the system. + +The HOST can send messages or portions of a message to its IMP specifying + + 1. Tracing + 2. Conversion + 3. Whether message is for destination IMP or HOST + 4. Send RFNM + 5. HOST up or down + 6. Synchronization + 7. Format Error Messages + 8. Master Link Clear + 9. Status Requested + +The IMP can send to its HOST information on + + 1. Conversion + 2. REFNM Arrived + 3. IMP up or down + 4. Synchornization + 5. Called HOST not Responding + 6. Format Error + 7. Status in IMP + +I also summarized for Bob the contents of Network Notes l, 2, and 3. + + -- cgit v1.2.3