8 Jan
2017
8 Jan
'17
9:32 p.m.
I haven't yet made time to deeply review and post at length about the
IoT XEPs. However, I've looked at them all briefly and I have a
high-level question about their focus and intent. Several of them
mention use cases involving millions of devices on an IoT network, and
even millions of devices behind a single JID acting as a concentrator.
Do we truly think this is a realistic scenario? Most of the use cases I
hear about from customers (not involving XMPP) as well as the real-world
usage of XMPP I know about (e.g., in demand-response systems) involve
perhaps a few hundred edge devices (sensors, actuators, and the like) at
any given deployment (e.g., at a factory, office complex, oil refinery,
or construction site). Personally I do not see a need for millions of
endpoints behind a single concentrator JID. I don't think I even see a
need for millions of endpoints on any single customer deployment - tens
of thousands seems a lot more plausible. Perhaps the authors were
thinking about a single central server at an XMPP-based IoT service
provider handling that many endpoints for multiple customers across all
of their physical locations?
Peter
--
Peter Saint-Andre
https://filament.com/
8 Jan
8 Jan
11:01 p.m.
I would say the modeling of size of an IoT endpoint is a floating target.
The text can be more elaborate on it
going to a classic endpoint like PhilipHue lamp (in the Realtime booth on
FOSDEM) I have modeled every lamp as individual JID. Some argue Philips
has sold 10M lamps
If philips provided XMPP-IoT as their API, that would lead to 10M JIDS on
their xmpp server.
Or should each gateway have a JID with the connected lamps behind? The API
from Philips is very gateway centric *gatewayID/lamp1...lampXX*
Or just one JID MasterBot(a)philipsHue.com that just acts as a messaging
proxy to any lamp and you set up your JID credentials on my.meethue.com
(being a concentrator)
<message from='myjid(a)domain.com/mobile'
to='MasterBot(a)philipsHue.com'>
<set xmlns='urn:xmpp:iot:control'>
<node nodeId='PhilipsHUEGatewayID'/>
<boolean name='Lamp1OnOff' value='True'/>
</set>
</message>
*Control should probably use
tokens http://www.xmpp.org/extensions/xep-0325.html#tokens
<http://www.xmpp.org/extensions/xep-0325.html#tokens> and the PhilipsHue
access keys generated when the push button is pressed on the gateway.*
Written by Joachim Lindborg on a device running on solar energy from
watt-s.com
CTO, systems architect
Sustainable Innovation SUST.se ,Tel +46 706-442270, linkedin
<http://www.linkedin.com/in/joachimlindborg>
Barnhusgatan 3 111 23 Stockholm
2017-01-08 22:32 GMT+01:00 Peter Saint-Andre - Filament <peter(a)filament.com>
:
I haven't yet made time to deeply review and post
at length about the IoT
XEPs. However, I've looked at them all briefly and I have a high-level
question about their focus and intent. Several of them mention use cases
involving millions of devices on an IoT network, and even millions of
devices behind a single JID acting as a concentrator. Do we truly think
this is a realistic scenario? Most of the use cases I hear about from
customers (not involving XMPP) as well as the real-world usage of XMPP I
know about (e.g., in demand-response systems) involve perhaps a few hundred
edge devices (sensors, actuators, and the like) at any given deployment
(e.g., at a factory, office complex, oil refinery, or construction site).
Personally I do not see a need for millions of endpoints behind a single
concentrator JID. I don't think I even see a need for millions of endpoints
on any single customer deployment - tens of thousands seems a lot more
plausible. Perhaps the authors were thinking about a single central server
at an XMPP-based IoT service provider handling that many endpoints for
multiple customers across all of their physical locations?
Peter
--
Peter Saint-Andre
https://filament.com/
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9 Jan
9 Jan
7:22 a.m.
On 08.01.2017 22:32, Peter Saint-Andre - Filament wrote:
I haven't yet made time to deeply review and post
at length about the
IoT XEPs. However, I've looked at them all briefly and I have a
high-level question about their focus and intent. Several of them
mention use cases involving millions of devices on an IoT network, and
even millions of devices behind a single JID acting as a concentrator.
Do we truly think this is a realistic scenario? Most of the use cases I
hear about from customers (not involving XMPP) as well as the real-world
usage of XMPP I know about (e.g., in demand-response systems) involve
perhaps a few hundred edge devices (sensors, actuators, and the like) at
any given deployment (e.g., at a factory, office complex, oil refinery,
or construction site). Personally I do not see a need for millions of
endpoints behind a single concentrator JID. I don't think I even see a
need for millions of endpoints on any single customer deployment - tens
of thousands seems a lot more plausible.
Does it matter whether there are tens of thousands or millions of
devices? What's important is that an IoT protocol has the ability to
(optionally) represent multiple devices behind a single XMPP address,
because that's an important use case.
Consider of a thing with multiple sensors/actors (aka. nodes/devices).
Besides the default permission model where a friend of the thing is able
to control every actor and to read out every sensor of the device, you
may want to give only certain entities access to certain nodes. But I
don't see how the number of nodes is relevant here.
- Florian
3217
days inactive
3218
days old
2 comments
3 participants
participants (3)
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Florian Schmaus -
Joachim Lindborg -
Peter Saint-Andre - Filament