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    ovs-vsctl add-port br0 tap1 -- set interface tap1 type=internal
    ovs-vsctl add-port br0 tap2 -- set interface tap2 type=internal
    ovs-vsctl add-port br0 tap3 -- set interface tap3 type=internal
    ip netns add ns1
    ip netns add ns2
    ip netns add ns3
    ip link set dev tap1 netns ns1
    ip link set dev tap2 netns ns2
    ip link set dev tap3 netns ns3
    ip netns exec ns1 ip addr add 10.10.10.11/24 dev tap1
    ip netns exec ns1 ip link set up tap1
    ip netns exec ns2 ip addr add 10.10.10.12/24 dev tap2
    ip netns exec ns2 ip link set up tap2
    ip netns exec ns3 ip link set up tap3
    ovs-vsctl -- --id=@tap1 get port tap1  
              -- --id=@tap3 get port tap3  
              -- --id=@m create mirror name=m0 select_dst_port=@tap1 output_port=@tap3 
              -- set bridge br0 mirrors=@m
    [root@bogon ~]# ip netns exec ns1 ping 10.10.10.12 -c 2
    PING 10.10.10.12 (10.10.10.12) 56(84) bytes of data.
    64 bytes from 10.10.10.12: icmp_seq=1 ttl=64 time=0.702 ms
    64 bytes from 10.10.10.12: icmp_seq=2 ttl=64 time=0.070 ms
    
    --- 10.10.10.12 ping statistics ---
    2 packets transmitted, 2 received, 0% packet loss, time 1028ms
    rtt min/avg/max/mdev = 0.070/0.386/0.702/0.316 ms
    [root@bogon ~]# 
    [root@bogon ~]# ip netns exec ns3 tcpdump -i tap3 -e -nn icmp or arp
    tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
    listening on tap3, link-type EN10MB (Ethernet), capture size 262144 bytes
    17:39:57.346895 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype ARP (0x0806), length 42: Reply 10.10.10.12 is-at 2e:c2:ed:62:84:34, length 28
    17:39:57.347178 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype IPv4 (0x0800), length 98: 10.10.10.12 > 10.10.10.11: ICMP echo reply, id 10779, seq 1, length 64
    17:39:58.384556 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype IPv4 (0x0800), length 98: 10.10.10.12 > 10.10.10.11: ICMP echo reply, id 10779, seq 2, length 64
    17:40:02.384860 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype ARP (0x0806), length 42: Request who-has 10.10.10.11 tell 10.10.10.12, length 28
    17:45:02.966908 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype IPv4 (0x0800), length 98: 10.10.10.12 > 10.10.10.11: ICMP echo reply, id 13276, seq 1, length 64
    17:45:03.994538 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype IPv4 (0x0800), length 98: 10.10.10.12 > 10.10.10.11: ICMP echo reply, id 13276, seq 2, length 64
    17:45:07.984762 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype ARP (0x0806), length 42: Request who-has 10.10.10.11 tell 10.10.10.12, length 28
    17:45:07.984781 2e:c2:ed:62:84:34 > 9a:8f:47:8a:7d:76, ethertype ARP (0x0806), length 42: Reply 10.10.10.12 is-at 2e:c2:ed:62:84:34, length 28
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  • 原文地址:https://www.cnblogs.com/dream397/p/12938617.html
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