Re: [T2TRG] Comments on draft-hong-iot-edge-computing-02

[Alessandro Bassi <[e-mail]>]

Dear Carles,

indeed, you are right: in my comment I should have specified the Device
class I was referring to.

thanks! best,

--alex

On 02. 04. 19 13:00, Carles Gomez Montenegro wrote:
> Dear Alessandro,
>
> Please find a couple of inline comments below:
>
>> "[...] are connected to the Internet, IoT data volume from these things
>> are expected to increase explosively."
>>
>> why? Besides, usually a Device is not directly connected to the
>> Internet. A temperature sensor is just connected to a proxi. A smart
>> shoe is just connected to a smart phone via BLE. Usually, constrained
>> devices do not have enough "power" to hold a complete Internet stack,
>> and they are connected to a gateway.
> Well, there are different classes of constrained devices [RFC 7228,
> draft-bormann-lwig-7228bis-04].
>
> From RFC 7228, regarding Class 1 devices:
>
>    "... are capable enough to use a
>    protocol stack specifically designed for constrained nodes (such as
>    the Constrained Application Protocol (CoAP) over UDP [COAP]) and
>    participate in meaningful conversations without the help of a gateway
>    node."
>
> You are right that there are devices which are more constrained than Class
> 1 ones (i.e. Class 0 devices). These match the category you just
> described.
>
> On another topic, please note that there is support for IPv6 over BLE.
> This comprises the star network topology [RFC 7668] and extended (e.g.
> mesh) topologies [draft-ietf-6lo-blemesh].
>
> Thanks,
>
> Carles
>