The value of retval from the 2nd reply can be looked up in
src/vnet/api_errno.h:
_(VLAN_ALREADY_EXISTS, -56, "VLAN subif already exists")
The attempt to create a VLAN subif is failing because the one you're trying
to create has already been created.
On Sat, Oct 2, 2021 at 3:23 AM Eyle Brinkhuis
wrote:
> Hi,
>
> While using a small piece of python code to create a vlan subinterface, we
> get some unexpected returns:
>
> We run:
> vpp.api.create_vlan_subif(sw_if_index=3, vlan_id=101);
>
> The return for this varies, one time it is:
>
> create_vlan_subif_reply(_0=121, context=4, retval=0, sw_if_index=5)
>
> But it is not consistent, we get
> create_vlan_subif_reply(_0=121, context=4, retval=-56,
> sw_if_index=4294967295)
> Back as well, which is of no use to us. Anyone experienced the same?
>
> We run vpp 21.06 (installed from package cloud)
>
> Regards,
>
> Eyle
>
>
>
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