On Jan 10, 2018, at 10:52 AM, Noel Chiappa via cctalk
<cctalk at classiccmp.org> wrote:
From: Paul Koning
That was then adopted by OSI as IS-IS, and
further tweaked to become
OSPF.
Err, no. OSPF was not a descendant of IS-IS - it was a separate development,
based mainly on the ARPANET's original link state routing. (I can't recall if
John Moy and I took a lot from the later 'area' version of the ARPANET link
state, although we knew of it.) I think we became aware of IS-IS as OSPF
progressed, and IIRC John 'borrowed' a few ideas (maybe the sequence number
thing).
That may be the story, but I don't believe it. Contemporary accounts have it that he
started from a draft IS-IS spec.
paul