Openv Switch

[virgo]

Hi,
I'm trying to create a sniff network with OVS bridge but after following this tutorial:
https://backreference.org/2014/06/17/port-mirroring-with-linux-bridges/index.html

The output is correct but is not working

my output:

ovs-vsctl list mirror mymirror
_uuid               : f466be04-2266-44e8-9967-573215584089
external_ids        : {}
name                : mymirror
output_port         : 3ca77026-7f0b-42a7-9431-9343b5ebb0b9
output_vlan         : []
select_all          : true
select_dst_port     : [9fca71a9-fde4-4324-a479-7562ea453905]
select_src_port     : [9fca71a9-fde4-4324-a479-7562ea453905]
select_vlan         : []
snaplen             : []
statistics          : {}