[Fiware-miwi] Tundra scene synchronization protocol

[Philipp Slusallek]

Hi Lasse, all,

Thanks you very much. Some comments and questions from my side (adding
Dmitri in CC, who is our main KIARA person):

-- From the document:
> The sync protocol supports creating and removing attributes in
> components on the fly, but for most components such as EC_Mesh or
> EC_Placeable, the set of attributes is fixed.

Are you actually making use of adding attributes at runtime? I can
easily see that some attributes may be optional. But what would be a
case where attributes get added to a compoenent. How would a remote node
make use of this info, if it does not know about the attribute.

In KIARA we try to allow strong optimization of the communication.
Optional data is easily dealt with here (just a flag) but adding random
new data, would defeat most optimizations. Its currently not planned to
be supported. So I would like to understand, how its is being used and
what alternatives might be there for these usecases (I would like not to
give up optimization).

Regarding the encoding, as I mentioned, this is not fixed in KIARA. The
app describes its data structures (such as in Jonne's component
document) and KIARA would negotiate/choose a proper encoding/protocol
when establishing the connection (which allows us to optimize depending
on the clients, network, and other conditions at run time). This would
include possibly choosing a smaller network representation for smaller
int values.

-- It seems there needs to be some encoding also for the commands, as
well as things like authentification and such?

-- Is there any notion of security?


Best,

	Philipp

Am 06.09.2013 12:58, schrieb "Lasse Öörni":
> the initial version of the realXtend Tundra scene sync protocol
> description is online in the Forge miwi wiki. This is the same document
> that I sent by email earlier.
> 
> See here:
> https://forge.fi-ware.eu/plugins/mediawiki/wiki/miwi/index.php/RealXtend_Tundra_protocol
> 


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