ovs-ofctl add−flow/add−flows/mod−flows “流表匹配条件,actions=[动作1][,动作2…]” 如果你有过编程的经验,流表规则其实就是一个个简单的if语句,伪代码如下。 if (流表匹配条件){ 动作1, 动作2... } if (流表匹配条件){ 动作1, 动作2... } ...
controller通过openflow协议下发FLOW_MOD命令给ovs的Userspace流表。 ovs-ofctl通过openflow协议下发FLOW_MOD给ovs的Userspace流表。ovs-ofctl add-flow最终调用 ofctl_flow_mod(ctx->argc, ctx->argv, OFPFC_ADD); ofctl_flow_mod handle_openflow handle_flow_mod ovs-vsctl add-port br0 eth1实现 linux 中...
1、resubmitwpq@wpq:~$ sudo ovs-ofctl -O OpenFlow13 add-flow s1 "table=0,priority=0,idle_timeout=0,actions=resubmit(,1)" wpq@wpq:~$ sudo ovs-ofctl dump-flows -O OpenFlow13 s1 OFPST_FLOW reply (OF1.3) (xid=0x2): cookie=0x0, duration=2.370s, table=0, n_packets=0, n_bytes...
#ovs-ofctl add-flow switch0 priority=0,actions=NORMAL cookie=0x0, duration=11509.036s, table=0, n_packets=1059, n_bytes=116533, idle_age=740, priority=1,in_port=1 actions=resubmit(,2) //从端口1及patch-int进来的traffic会被重新执行table 2的rule flows規則丢失问题:主機重啓后,设置的flows规...
我们尝试对br0的默认行为进行一些调整,比如,从veth0_br口进入的数据包,全部丢弃。通过ovs-ofctl add-flow可以对指定的交换机添加流表规则: $ ovs-ofctl add-flow br0in_port=veth0_br,actions=drop $ ovs-ofctl dump-flows br0cookie=0x0,duration=2.054s,table=0,n_packets=0,n_bytes=0,in_port="...
datapath流表更新的入口函数都定义在dp_flow_genl_ops中,流表创建的入口函数是ovs_flow_cmd_new函数,通过该函数,我们可以一窥流表相关信息的建立。 1、ovs_flow_cmd_new函数 static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info) ...
14.查看交换机中的所有 Table:ovs-ofctl dump-tables ovs-switch 15.查看交换机中的所有流表项:ovs−ofctl dump−flows ovs-switch 16.删除编号为 100 的端口上的所有流表项:ovs-ofctl del-flows ovs-switch “in_port=100” 17.添加流表项(以“添加新的 OpenFlow 条目,修改从端口 p0 收到的数据包的...
接着数据进入table1, 到达VM2的MAC,流入地址是192.168.12.1的MAC地址,完成了从gateway到VM的数据转发。至此数据包完成了从VM1到VM2的传递,仅仅在compute节点之间没有经过network节点。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 [root@test116 ~]# ovs-ofctl dump-flows br-int NXST_FLOW reply (...
ovs-ofctl, a utility for querying and controlling OpenFlow switches and controllers. ovs-pki, a utility for creating and managing the public-key infrastructure for OpenFlow switches. ovs-testcontroller, a simple OpenFlow controller that may be useful for testing (though not for production). ...
1、添加一条flow:屏蔽 STP 协议的广播数据包 [root@kunpeng82 devuser]# ovs-ofctl add-flow vswitch1"table=0, dl_dst=01:80:c2:00:00:00/ff:ff:ff:ff:ff:f0, actions=drop" [root@kunpeng82 devuser]# ovs-appctl ofproto/trace br0 in_port=1,dl_dst=01:80:c2:00:00:05br0: unknown bri...