Re: [core] CoAP for high throughput applications

"Kovatsch Matthias" <kovatsch@inf.ethz.ch> Tue, 05 April 2016 16:38 UTC

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From: Kovatsch Matthias <kovatsch@inf.ethz.ch>
To: "Fossati, Thomas (Nokia - GB)" <thomas.fossati@nokia.com>, EXT Carsten Bormann <cabo@tzi.org>
Thread-Topic: [core] CoAP for high throughput applications
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Date: Tue, 05 Apr 2016 16:38:04 +0000
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Subject: Re: [core] CoAP for high throughput applications
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> Is CoCoA available if I'd want to test it?

Californium has expirmental support for CoCoA (contributed by August Betzler). The focus, however, was actual congestion in constrained networks, and not high-throughput. Hence, the CoCoA implementation isn't for that...

> I haven't re-done the maths, but the CoAP spec has a slightly lower number:
> 
>   "[...] The Message ID
>    is compact; its 16-bit size enables up to about 250 messages per
>    second from one endpoint to another with default protocol
>    parameters.)"

This only limits the number of messages between two endpoints. A server can receive this rate from an arbitrary number of clients. I think this was the scenario for this LURK box, no?

In case you really need to send a higher rate of requests from a client, it could use multiple ports.

Ciao
Matthias