Ask Your Question

ARP request via VXLAN is reached to Network node but dropped

asked 2017-01-12 23:13:49 -0500

Jacob_yeelow gravatar image

I have successfully launched an instance on compute node, but it can't ping the gateway which is on network node l3 router.

from the compute node i can see the arp is sent out via vxlan: root@Compute1:/etc/neutron/plugins/ml2# ovs-dpctl dump-flows skb_priority(0),in_port(4),eth(src=fa:16:3e:6d:74:37,dst=ff:ff:ff:ff:ff:ff),eth_type(0x0806),arp(sip=,tip=,op=1/0xff,sha=fa:16:3e:6d:74:37/00:00:00:00:00:00,tha=00:00:00:00:00:00/00:00:00:00:00:00), packets:35, bytes:1470, used:0.920s, actions:push_vlan(vid=1,pcp=0),1,set(tunnel(tun_id=0x1,src=,dst=,tos=0x0,ttl=64,flags(df,key))),pop_vlan,3

from the network node i can see the packet is reached but it dropped it.

root@Network:/etc/neutron/plugins/ml2# ovs-ofctl dump-flows br-tun NXST_FLOW reply (xid=0x4): cookie=0x0, duration=98.662s, table=0, n_packets=0, n_bytes=0, idle_age=98, priority=1,in_port=1 actions=resubmit(,1) cookie=0x0, duration=95.999s, table=0, n_packets=80, n_bytes=3360, idle_age=1, priority=1,in_port=2 actions=resubmit(,3) cookie=0x0, duration=98.497s, table=0, n_packets=5, n_bytes=390, idle_age=89, priority=0 actions=drop cookie=0x0, duration=98.31s, table=1, n_packets=0, n_bytes=0, idle_age=98, priority=1,dl_dst=00:00:00:00:00:00/01:00:00:00:00:00 actions=resubmit(,20) cookie=0x0, duration=98.116s, table=1, n_packets=0, n_bytes=0, idle_age=98, priority=1,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 actions=resubmit(,21) cookie=0x0, duration=97.972s, table=2, n_packets=0, n_bytes=0, idle_age=97, priority=0 actions=drop cookie=0x0, duration=97.834s, table=3, n_packets=80, n_bytes=3360, idle_age=1, priority=0 actions=drop cookie=0x0, duration=97.667s, table=10, n_packets=0, n_bytes=0, idle_age=97, priority=1 actions=learn(table=20,hard_timeout=300,priority=1,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:0->NXM_OF_VLAN_TCI[],load:NXM_NX_TUN_ID[]->NXM_NX_TUN_ID[],output:NXM_OF_IN_PORT[]),output:1 cookie=0x0, duration=97.499s, table=20, n_packets=0, n_bytes=0, idle_age=97, priority=0 actions=resubmit(,21) cookie=0x0, duration=97.288s, table=21, n_packets=0, n_bytes=0, idle_age=97, priority=0 actions=drop

root@Network:/etc/neutron/plugins/ml2# ovs-dpctl dump-flows skb_priority(0),tunnel(tun_id=0x1,src=,dst=,tos=0x0,ttl=64,flags(key)),in_port(5),skb_mark(0),eth_type(0x0806), packets:83, bytes:3486, used:0.144s, actions:drop root@Network:/etc/neutron/plugins/ml2#

can someone help me. it took me more than 4 days, but i still can't figure out what is wrong. thanks in advance.

edit retag flag offensive close merge delete

2 answers

Sort by ยป oldest newest most voted

answered 2017-01-12 23:15:12 -0500

Jacob_yeelow gravatar image

can someone help. thanks

edit flag offensive delete link more

answered 2018-11-01 08:28:09 -0500

tien86 gravatar image

Do you found the solution yet I have same problem ?

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower


Asked: 2017-01-12 23:13:49 -0500

Seen: 278 times

Last updated: Jan 12 '17