openstack - 我在ovs中配置了两个几乎一样的arp流，但是一个可以工作，一个不工作，我想知道原因？谁能告诉我？谢谢大家！

Question

1、两个ovs流程是：</p>

1）cookie=0x0, duration=1746.238s, table=0, n_packets=4, n_bytes=168, idle_age=505, priority=10,arp,in_port=1,arp_tpa=192.168.1.53 actions=load:0->NXM_NX_TUN_ID []，加载：0xac1f006b->NXM_NX_TUN_IPV4_DST[]，输出：8

2） cookie=0x0, duration=1280.485s, table=0, n_packets=0, n_bytes=0, idle_age=1280, priority=10,arp,in_port=1,arp_tpa=198.168.200.6 actions=load:0->NXM_NX_TUN_ID []，加载：0xac1f00ce->NXM_NX_TUN_IPV4_DST[]，输出：8

2、测试结果为：</p>

1）[root@localhost openvswitch]# ovs-appctl ofproto/trace br0 in_port=1,arp,arp_tpa=192.168.1.53

网桥：br0 流量：arp,in_port=1,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,arp_spa=0.0.0.0,arp_tpa =192.168.1.53,arp_op=0,arp_sha=00:00:00:00:00:00,arp_tha=00:00:00:00:00:00

规则：table=0 cookie=0 priority=10,arp,in_port=1,arp_tpa=192.168.1.53 OpenFlow actions=set_field:0->tun_id,set_field:172.31.0.107->tun_dst,output:8 输出到内核隧道

最终流程：arp,tun_src=0.0.0.0,tun_dst=172.31.0.107,tun_ipv6_src=::,tun_ipv6_dst=::,tun_gbp_id=0,tun_gbp_flags=0,tun_tos=0,tun_ttl=0,tun_flags=0,in_port=1 ,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,arp_spa=0.0.0.0,arp_tpa=192.168.1.53,arp_op=0,arp_sha =00:00:00:00:00:00,arp_tha=00:00:00:00:00:00 大流量：recirc_id=0,arp,tun_id=0,tun_dst=0.0.0.0,in_port=1,arp_tpa= 192.168.1.53 数据路径操作：set(tunnel(tun_id=0x0,src=172.31.0.108,dst=172.31.0.107,ttl=64,flags(df|key))),5

2）[root@localhost openvswitch]# ovs-appctl ofproto/trace br0 in_port=1,arp,arp_tpa=192.168.200.6

网桥：br0 流量：arp,in_port=1,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,arp_spa=0.0.0.0,arp_tpa =192.168.200.6,arp_op=0,arp_sha=00:00:00:00:00:00,arp_tha=00:00:00:00:00:00

不匹配，数据包被丢弃，因为在 in_port 上设置了 OFPPC_NO_PACKET_IN。

规则：table=254 cookie=0 priority=0,reg0=0x2 OpenFlow actions=drop

最终流程：未更改 Megaflow：recirc_id=0,arp,in_port=1,arp_tpa=192.168.200.6 数据路径操作：drop

标签： openstackopenflowopenvswitch