Re: [Bluez-devel] Disconnecting after 54 seconds

[Marcel Holtmann <marcel@holtmann.org>]

Hi Matthew,

> >> Is there some sort of timeout happening here? I thought it might need
> >> activity to keep the link up, but l2ping should do that. Has anyone else
> >> seen anything similar?
> >
> > these are L2CAP echo packets and so this doesn't have to be reliable.
> >
> Having packets dropped I would expect, but I wouldn't expect the HCI
> connection to be dropped regularly like this. This happens consistently
> using hcitool as well, after 54 seconds a link created with hcitool cc
> is dropped.

the "hcitool cc ..." and "l2ping" are for testing purpose only. Use real
connection on RFCOMM level.

> I've read over the FAQ and howtos on bluez.org and none of them appear
> to address this. Are there any low-level protocol docs which would
> suggest some sort of keep-alive which might be necessary? or is this
> likely to be a problem with my phone?
> 

If the phone decides to drop your connection that is fine. From the
security standpoint I would even encourage this.

Regards

Marcel




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