[Sis-ams] AMS RID BNSC-16
Scott Burleigh
Scott.Burleigh at jpl.nasa.gov
Wed Oct 17 17:25:38 EDT 2007
Our first residual RID is this one:
"Each RAMS gateway subscribes locally to all subjects that are of
interest". So the RAMS gateway acts as a proxy to nodes in other
continuum that are interested in particular subjects.
Latter in the book, the concept of envelopes is introduced. Why does
AMS treat messages to other continuum different? Surely this
functionality should be localised to the RAMS gateway itself. As far
as the publishing/sending node is concerned, the RAMS gateway should
be treated as any other node.
My proposed disposition is this:
Not accepted, as it's unclear what change is requested. For
published messages the RAMS gateway is indeed treated in the same
way as any other node. Envelopes are needed for messages that are
sent to nodes in remote continua. This is because RAMS forwarding
is in some ways a kind of "routing" and the AMS message is not a
routable structure: it lacks destination, which the envelope
supplies. For published messages the RAMS gateway itself
encapsulates the message in an envelope for forwarding, but for
private messages the source node must do it because it alone knows
the destination.
We didn't talk about this one in detail, mostly because it could involve
an in-depth discussion of RAMS that would have crowded out a lot of
other items. Stuart, does this disposition make sense to you? If not,
are there some specific points we can zero in on to reach a consensus?
Scott
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