On 2020-11-18 14:46, Xie He wrote:
On Wed, Nov 18, 2020 at 5:03 AM Xie He wrote:
On Wed, Nov 18, 2020 at 12:49 AM Martin Schiller
wrote:
>
> I also have a patch here that implements an "on demand" link feature,
> which we used for ISDN dialing connections.
> As ISDN is de facto dead, this
On Wed, Nov 18, 2020 at 5:03 AM Xie He wrote:
>
> On Wed, Nov 18, 2020 at 12:49 AM Martin Schiller wrote:
> >
> > I also have a patch here that implements an "on demand" link feature,
> > which we used for ISDN dialing connections.
> > As ISDN is de facto dead, this is not relevant anymore. But
On Wed, Nov 18, 2020 at 12:49 AM Martin Schiller wrote:
>
> Ah, ok. Now I see what you mean.
> Yes, we should check the lapb->mode in lapb_connect_request().
...
> I also have a patch here that implements an "on demand" link feature,
> which we used for ISDN dialing connections.
> As ISDN is de
On 2020-11-17 19:28, Xie He wrote:
On Tue, Nov 17, 2020 at 5:26 AM Martin Schiller wrote:
On 2020-11-17 12:32, Xie He wrote:
>
> I think for a DCE, it doesn't need to initiate the L2
> connection on device-up. It just needs to wait for a connection to
> come. But L3 seems to be still
On Tue, Nov 17, 2020 at 5:26 AM Martin Schiller wrote:
>
> On 2020-11-17 12:32, Xie He wrote:
> >
> > I think for a DCE, it doesn't need to initiate the L2
> > connection on device-up. It just needs to wait for a connection to
> > come. But L3 seems to be still instructing it to initiate the L2
>
On 2020-11-17 12:32, Xie He wrote:
On Tue, Nov 17, 2020 at 1:53 AM Martin Schiller wrote:
On 2020-11-16 21:16, Xie He wrote:
> Do you mean we will now automatically establish LAPB connections
> without upper layers instructing us to do so?
Yes, as soon as the physical link is established,
On Tue, Nov 17, 2020 at 1:53 AM Martin Schiller wrote:
>
> On 2020-11-16 21:16, Xie He wrote:
> > Do you mean we will now automatically establish LAPB connections
> > without upper layers instructing us to do so?
>
> Yes, as soon as the physical link is established, the L2 and also the
> L3 layer
On 2020-11-16 21:16, Xie He wrote:
Do you mean we will now automatically establish LAPB connections
without upper layers instructing us to do so?
Yes, as soon as the physical link is established, the L2 and also the
L3 layer (restart handshake) is established.
In this context I also noticed
On Mon, Nov 16, 2020 at 6:01 AM Martin Schiller wrote:
>
> This makes it possible to handle carrier loss and detection.
> In case of Carrier Loss, layer 2 is terminated
> In case of Carrier Detection, we start timer t1 on a DCE interface,
> and on a DTE interface we change to state LAPB_STATE_1
This makes it possible to handle carrier loss and detection.
In case of Carrier Loss, layer 2 is terminated
In case of Carrier Detection, we start timer t1 on a DCE interface,
and on a DTE interface we change to state LAPB_STATE_1 and start
sending SABM(E).
Signed-off-by: Martin Schiller
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