Chips mirror actions:

PRONTO3290 PRONTO3296 PRONTO3295(TR2)(egress mirror=true)
PRONTO3780 PRONTO3920 PRONTO3922 PRONTO3930 PRONTO3960 PRONTO3965 PRONTO3980 PRONTO3920 PRONTO3924(TD)
 
ES4654 AS4610_54P AS4610_54T AS4610_30P AS4610_30T(Helix4)(egress mirror=true)
 PRONTO5101 PRONTO5401 AS6701_32X N2632XL N2948_6XL AS6712_32X AS5712_54X S4048 ARCTICA4806XP(TD2)
 
AS5812_54T AS5812_54X(TD2P)
 DCS7032Q28 AS7712_32X Z9100 (TH)

Note：egress mirror 只有在egress mirror=true 的机器上才能保证所有的出端口的报文都能mirror正确（也就是说3290（Firebolt3)，3296(Triumph2),还有4610这类helix4芯片上支持egress mirror),在其他的机器上的mirror端口的出方向的流量，行为不确定

以下是各类芯片的测试结果：

p3290(Firebolt3):

p3297(trumph2):

as5812_54t(trident2plus):

p6701(trident2):

p3920(trident+):

4610_54t_b(helix4):

as7712_32x(tomhark):

Create One Mirror

ovs-vsctl [--OPTION] -- set bridge <bridge> mirrors=@m -- --id=@<port1> get Port <port1> -- --id=@<port2> get Port <port2> [-- --id=@<port3> get Port <port3>]-- --id=@m create Mirror name=<mirror-name> select-src-port=@<port1>[,@<port3>] select-dst-port=@<port1>[,@<port3>] output-port=@<port2>

PicOS OVS supports mirroring, select-src-port and select-dst-port represent the source ports of mirroring, select-dst-port means some packets (in switch chip) will go-out from the specified port (egress); select-src-port means some packets will enter the specified port (ingress); output_port means the monitor port. PicOS OVS supports up to 4 mirrors.

Before PicOS2.10 ovs only support configure physical port as output_port, from PicOS2.10 ovs also support lag interface as output_port.

Example1:
Add port ge-1/1/1, ge-1/1/2 and ge-1/1/3 to mirror, ge-1/1/1 and ge-1/1/2 as ingress and egress, the output port is ge-1/1/3.

root@PicOS-OVS$ovs-vsctl set bridge br0 mirrors=@m -- --id=@ge-1/1/1 get Port ge-1/1/1 -- --id=@ge-1/1/2 get Port ge-1/1/2 -- --id=@ge-1/1/3 get Port ge-1/1/3 -- --id=@m create Mirror name=mymirror select-src-port=@ge-1/1/1,@ge-1/1/2 select-dst-port=@ge-1/1/1,@ge-1/1/2 output-port=@ge-1/1/3

Example2:
Add port ge-1/1/1, ge-1/1/2 and ae1 to mirror, ge-1/1/1 and ge-1/1/2 as ingress and egress, the output port is ae1.

root@PicOS-OVS$ovs-vsctl set bridge br0 mirrors=@m -- --id=@ge-1/1/1 get Port ge-1/1/1 -- --id=@ge-1/1/2 get Port ge-1/1/2 -- --id=@ae1 get Port ae1 -- --id=@m create Mirror name=mymirror select-src-port=@ge-1/1/1,@ge-1/1/2 select-dst-port=@ge-1/1/1,@ge-1/1/2 output-port=@ae1

ovs-vsctl [--OPTION] destroy <table> <record> – clear Bridge <bridge> mirrors

Example:

Delete a mirror named mymirror from mirror table in bridge br0.

admin@PicOS-OVS$ ovs-vsctl destroy Mirror mymirror -- clear Bridge br0 mirrors
or
admin@PicOS-OVS$ ovs-vsctl clear Bridge br0 mirrors

Create Two Mirrors

admin@PicOS-OVS$ovs-vsctl  -- set bridge br-s mirrors=@m,@m1 -- --id=@ge-1/1/1 get Port ge-1/1/1 -- --id=@ge-1/1/3 get Port ge-1/1/3 -- --id=@m create Mirror name=mymirror select-src-port=@ge-1/1/1 output-port=@ge-1/1/3 -- --id=@m1 create Mirror name=mirror1 select-src-port=@ge-1/1/3 output-port=@ge-1/1/1

Add one mirror and monitor port is lag

admin@PicOS-OVS$ovs-vsctl -- add bridge br-s mirrors @m -- --id=@te-1/1/1 get Port te-1/1/1 -- --id=@te-1/1/2 get Port te-1/1/2 -- --id=@ae1 get Port ae1 -- --id=@m create Mirror name=mymirror select-src-port=@te-1/1/1 select-src-port=@te-1/1/2 output-port=@ae1

Delete one mirror

admin@PicOS-OVS$ovs-vsctl remove bridge br0 mirrors 76fd4479-67e9-4c65-8edb-b99d8706d8f9