Hello,
 i am trying SPAN in openvswitch 2.3.0, by mirroring source traffic of
oct0 to output on port oct1.

After i start traffic, i can see packets in oct1. While  traffic is
running, i cleared the mirror. But still see mirroring happening.
Mirroring stops only after i stop and start traffic again. is this a
bug?


Mirror creation:

ovs-vsctl -- set Bridge br0 mirrors=@m  -- --id=@h0 get Port oct0  --
--id=@h1 get Port oct1  -- --id=@m create Mirror name=mymirror
select-src-p
ort=@h0 output-port=@h1
dc075662-e0f6-406f-a8e6-142ccbbdc287
~ #

Flows  with mirroring:

~ # ovs-dpctl dump-flows
recirc_id(0),skb_priority(0),in_port(3),eth(src=00:0f:b7:84:e6:d8,dst=00:0f:b7:84:39:6a),eth_type(0x0800),ipv4(src=10.10.10.2/0.0.0.0,dst=10.10.10.3/0.0.0.0,proto=1/0,tos=0/0,ttl=64/0,frag=no/0xff),
packets:123380, bytes:12091240, used:0.000s, actions:2
recirc_id(0),skb_priority(0),in_port(2),eth(src=00:0f:b7:84:39:6a,dst=00:0f:b7:84:e6:d8),eth_type(0x0800),ipv4(src=10.10.10.3/0.0.0.0,dst=10.10.10.2/0.0.0.0,proto=1/0,tos=0/0,ttl=64/0,frag=no/0xff),
packets:123380, bytes:12091240, used:0.000s, actions:3,4


Mirror delete:
#ovs-vsctl clear bridge br0 mirrors


Flows after mirror clear
~ #
~ # ovs-dpctl dump-flows
recirc_id(0),skb_priority(0),in_port(3),eth(src=00:0f:b7:84:e6:d8,dst=00:0f:b7:84:39:6a),eth_type(0x0800),ipv4(src=10.10.10.2/0.0.0.0,dst=10.10.10.3/0.0.0.0,proto=1/0,tos=0/0,ttl=64/0,frag=no/0xff),
packets:127517, bytes:12496666, used:0.000s, actions:2
recirc_id(0),skb_priority(0),in_port(2),eth(src=00:0f:b7:84:39:6a,dst=00:0f:b7:84:e6:d8),eth_type(0x0800),ipv4(src=10.10.10.3/0.0.0.0,dst=10.10.10.2/0.0.0.0,proto=1/0,tos=0/0,ttl=64/0,frag=no/0xff),
packets:127517, bytes:12496666, used:0.001s, actions:3,4
~ #


~ # ovs-dpctl show
system@ovs-system:
        lookups: hit:84810774 missed:6330 lost:0
        flows: 2
        masks: hit:84819861 total:1 hit/pkt:1.00
        port 0: ovs-system (internal)
        port 1: br0 (internal)
        port 2: oct0
        port 3: poct0
        port 4: oct1


Thanks,
Prashanth
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