利用OVS+FLOODLIGHT，为数据表添加VLAN_ID和MPLS

Posted 2021-01-24 gejuncheng

话不多说，直接上拓扑：

我这里是用主机h1 （10.0.0.1）ping 主机h2(10.0.0.2)

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1.添加VLAN标签

v1:
sudo ovs-ofctl add-flow m1-s1 in_port=1,actions=mod_vlan_vid:123,output:4
v2:
sudo ovs-ofctl add-flow m1-s2 in_port=1,dl_vlan=123,action=output:2
v3:
sudo ovs-ofctl add-flow m1-s3 in_port=2,dl_vlan=123,actions=strip_vlan,output:1

2.添加MPLS标签

注意：ping是先用arp协议查看目标ip的mac地址，在发送icmp数据包，所以加标签完了去标签的时候要注意区分包类型！

V1
sudo ovs-ofctl add-flow -O OpenFlow13 m1-s1 icmp,in_port=1,actions=push_mpls:0x8847,set_field:123->mpls_label,output:4
sudo ovs-ofctl add-flow -O OpenFlow13 m1-s1 arp,in_port=1,actions=push_mpls:0x8847,set_field:124->mpls_label,output:4
V2
//改为ip协议 ，支持icmp
sudo ovs-ofctl add-flow -O OpenFlow13 m1-s2 mpls,in_port=1,mpls_label=123,actions=pop_mpls:0x0800,output:2
sudo ovs-ofctl add-flow -O OpenFlow13 m1-s2 mpls,in_port=1,mpls_label=124,actions=pop_mpls:0x0806,output:2
V3
sudo ovs-ofctl add-flow m1-s3 in_port=2,actions=output:1

附加：OVS操作cmd:

查看交换机流表
sudo ovs-ofctl dump-flows br0 "in_port=1"

删除指定交换机流表
sudo ovs-ofctl del-flows m1-s2

3.结果：