18 Jan
2018
18 Jan
'18
2:24 p.m.
On Jan 18, 2018, at 9:39, Grant Taylor via cctalk
<cctalk at classiccmp.org> wrote:
On 01/17/2018 11:33 AM, Noel Chiappa via cctalk wrote:
In the course of this discussion I have been reminded that BBN did a TCP/IP for the HP3000
that ran under MPE IV. It is described in IEN 167 and if you read that carefully you will
realize that they got started on MPE III; MPE message files (think record-structured
pipes) first appeared in late MPE III but were not documented until MPE IV.
Trawling the Intertubes for, well, anything about this I turned up a sort of progress
report.
<http://www.dtic.mil/dtic/tr/fulltext/u2/a112575.pdf>
It begins on page 66 of 81, on page 68 of 81 it describes changes to the routing table.
"Currently, this table has one entry for each of the possible 256 networks, and
accesses are very fast." and I'll just leave you with that.
-Frank McConnell
E.g. it probably only supports class A addresses,
for instance, which is going to influence the code for picking the first-hop router.
I was not aware that there was code that supported /only/ Class A (/8) addresses and
/not/ Class B (/16) or Class C (/24) addresses.
I /thought/ that everything was either classful (as in supports all three classes: A, B,
and C) or classless (as in supports CIDR).
Is my networking history missing something else?