Hi All, I met a problem of dns packet lost in openstack environment. I need help. The problem desc: In the vm, I use "curl http://www.baidu.com" to do test. And the cmd takes almost 5 seconds return. So I use tcpdump to capture the packets. And found a dns packet lost which is AAAA packet for ipv6. The packet-lost-on-qbr.zip are the captured packets which is from qbr to qvb. It clearly shows the lost packet. In my another openstack environment, the problem can not occur. The qbr-no-packet-lost.zip is the captured packets. Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20170526/f270e841/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: packet-lost-on-qbr.zip Type: application/octet-stream Size: 930 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20170526/f270e841/attachment.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: qbr-no-packet-lost.zip Type: application/octet-stream Size: 438 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20170526/f270e841/attachment-0001.obj>