Dave Taht wrote:
Periodically I still do some work on routing protocols. 12? years ago I had kind
of given up on ospf and isis, and picked the babel protocol as an IGP
for meshy networks because I felt link-state had gone as far as it
could and somehow unifying BGP DV with an IGP that was also DV
(distance vector) seemed like a path forward.
As DV depends other routers to choose the best path from
several candidates updated asynchronously, which means
it is against the E2E principle and decisions by other
routers are delayed a lot to wait all the candidates
are updated, it is hopeless.
OTOH, LS only allows routers distribute the current most link
states instantaneously and let end systems of individual
routers compute the best path, LS converges quickly.
BGP is DV because there is no way to describe policies of
various domains and, even if it were possible, most, if
not all, domains do not want to publish their policies
in full detail.
My question for this list is basically, has anyone noticed or fiddled
with babel?
No.
Masataka Ohta
