Re: #1416: USEPRO 3.9: Reinjection and Injection-Date

[Russ Allbery <rra@xxxxxxxxxxxx>]

Forrest J Cavalier <forrest@xxxxxxxxxxxxxxx> writes:
> Russ Allbery wrote:

>> Forrest has proposed only allowing reinjection between disjoint networks.

> Well, no.  I was coerced.  My original text said little.  Then I upped
> it to handle leaf nodes.  Then I was coerced to consider the disjoint
> network multi-injection.  This WG is a broadening experience, doncha
> know.

*heh*.  Sorry if I mis-stated there!  :)

> If you are a private leaf node, you know you want to reinject articles
> posted locally and no others.  In this case, you KNOW articles did not
> pass through A nor B, because they originated at your node and you
> haven't relayed them yet, since you don't relay.  QED.

> You can implement this many different ways.  I don't think we need to
> standardize that implementation.

That makes sense.  Basically, if we say that you're only allowed to do
reinjection that changes the identity of the article (dropping
Injection-Date) when you *know* that the networks are disjoint, and leave
the problem of knowing that to the implementation, it handles the simple
leaf-node case while leaving the question of how to determine this in more
complicated cases to the individual.

We can still get problems if that knowledge is wrong, of course.

> Let those with other cases read Duties of Gateways.  They don't get a
> standard formula, because this WG doesn't have a consensus about their
> needs and prevalance, and the Injection-Date scheme that was proposed is
> now consensed to be faulty (although different WG members think it is
> flawed for different reasons.)

There is that -- the Gateways section allows for Netnews-to-Netnews
gateways with more general descriptions of what sorts of care one has to
use, and is available as a fallback description of what has to be done for
weird and difficult cases.

-- 
Russ Allbery (rra@xxxxxxxxxxxx)             <http://www.eyrie.org/~eagle/>