Thanks for explanation. So I need to span parent interface. On Tue, Apr 30, 2019 at 4:36 PM Damjan Marion <dmar...@me.com> wrote:
> > > On 30 Apr 2019, at 13:46, Berna Demir <berna.demirs...@gmail.com> wrote: > > Hi > > I've used following commands to span packets of vlan sub_interface > to a tap interface, but nothing captured on tap interface in Linux. > > vpp_api_test> create_vlan_subif GigabitEthernet3/0/0 vlan 2100 > > vppctl> > set interface state GigabitEthernet3/0/0 up > set interface state GigabitEthernet3/0/0.2100 up > set interface state GigabitEthernetb/0/0 up > set interface ip address GigabitEthernet3/0/0.2100 192.168.111.1/24 > set interface ip address GigabitEthernetb/0/0 192.168.222.1/24 > tap connect test > set interface state tapcli-0 up > set interface span GigabitEthernet3/0/0.2100 both destination tapcli-0 > > In the bash: > #> tcpdump -nn -e -i test > > Do you have any idea? > > > By definition, SPAN is per-port feature, so it can be only applied to > physical ports. > It grabs packets before ethertype/dot1q lookup happens. > >
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