> On 12 Nov 2019, at 08:57, Dimitar Ivanov <d...@telco.com> wrote:
>
> Hi All,
> I need a help in investigation of one problem with TAP interface. I try to
> develop plugin that inspects packets send from Host Linux via TAP interface
> and take some actions on them. Scenario is like this:
> Linux Host Tap -->vpp tap0 --> other vpp interface. My node is set to be
> visited before 'ethernet-input'. Strange is that when Linux starts to send
> packets over tap interface my node is not called. I have checked counters of
> all nodes and see that event ethernet-input node counters are not increment.
> Only nodes that are activated (regarding counters) are l2-input, l2-fwd and
> etc.
> I was with impression that my code is not correct. In order to isolate
> mistakes from my side, i have activate mactime feature on same interface. The
> result was that mactime-tx is activated, but mactime - not. What is special
> on tap interface and why flow is not same like other interfaces ? Do You have
> some suggestion how to install my node in order to be on RX flow of TAP
> interface ? VPP version is v19.08.1. -=-=-=-=-=-=-=-=-=-=-=-
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It may be that you are using old tap code which doesn’t support device-input
feature arc.
Do you use “create tap ...” command?
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