Re: [leshan-dev] Using leshan in production in China

[Dean McKee <dean.mckee@xxxxxxx>]

One thing that could cause issues is short timeouts on NAT reverse lookup
tables in your network equipment.  By sending periodic messages from you
devices to the server you can mitigate some of this behavior.  I¹ve found
that an interval smaller than 60 seconds usually works.  Not sure if this
is what you are experiencing but it is one hurdle we encountered.

Regards,

Dean


On 11/10/16, 1:28 AM, "leshan-dev-bounces@xxxxxxxxxxx on behalf of Michael
Huelfenhaus" <leshan-dev-bounces@xxxxxxxxxxx on behalf of
m.huelfenhaus@xxxxxxxxxxx> wrote:

>hello,
>
>we are about to deploy a live system were with leshan devices in China
>and the servers in Germany.
>Now in the first field test we experience a lot of connection problems
>and timeout.
>It seems the coap connection is not stable, while we can access out
>devices with TCP more reliable.
>
>We are asking ourselves what might be the reason, the great firewall,
>slow connection Š.
>Does anybody here have a running system with devices in China or any
>hints? 
>
>Thanks,
>Michael A. Hülfenhaus
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