Seems to be a new issue . Never before experienced this problem
First on Controller&&Network node :
[root@juno1dev ~(keystone_admin)]# neutron net-list
+--------------------------------------+--------------+-----------------------------------------------------+
| id | name | subnets |
+--------------------------------------+--------------+-----------------------------------------------------+
| 30e668d5-eb07-423d-aeb6-d408a715e9bb | demo_network | a9a78ba4-5cb1-4e7d-97c7-f1531ebb7fbe 50.0.0.0/24 |
| 2cb0f522-c91f-4ef1-80c3-c9ade696e3bf | public | c3cac54d-acd9-4602-811f-8952c2fb94d8 192.168.1.0/24 |
+--------------------------------------+--------------+-----------------------------------------------------+
[root@juno1dev ~(keystone_admin)]# ip netns | grep 30e668d5-eb07-423d-aeb6-d408a715e9bb
qdhcp-30e668d5-eb07-423d-aeb6-d408a715e9bb
[root@juno1dev ~(keystone_admin)]# ip netns exec qdhcp-30e668d5-eb07-423d-aeb6-d408a715e9bb ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 25 bytes 2800 (2.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 25 bytes 2800 (2.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
tape0a57cc5-96: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 50.0.0.11 netmask 255.255.255.0 broadcast 50.0.0.255
inet6 fe80::f816:3eff:fec2:fba9 prefixlen 64 scopeid 0x20<link>
ether fa:16:3e:c2:fb:a9 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 29 bytes 1530 (1.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@juno1dev ~(keystone_admin)]# tcpdump -vv -i tape0a57cc5-96
tcpdump: tape0a57cc5-96: No such device exists
(SIOCGIFHWADDR: No such device)
Second /var/log/neutron/dnsmasq.log
Jan 25 10:47:08 dnsmasq[17647]: started, version 2.66 cachesize 150
Jan 25 10:47:08 dnsmasq[17647]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth
Jan 25 10:47:08 dnsmasq[17647]: warning: no upstream servers configured
Jan 25 10:47:08 dnsmasq-dhcp[17647]: DHCP, static leases only on 50.0.0.0, lease time 1d
Jan 25 10:47:08 dnsmasq[17647]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/addn_hosts - 2 addresses
Jan 25 10:47:08 dnsmasq-dhcp[17647]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/host
Jan 25 10:47:08 dnsmasq-dhcp[17647]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/opts
Jan 25 10:47:08 dnsmasq[17647]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/addn_hosts - 2 addresses
Jan 25 10:47:08 dnsmasq-dhcp[17647]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/host
Jan 25 10:47:08 dnsmasq-dhcp[17647]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/opts
Jan 25 10:56:31 dnsmasq[19925]: started, version 2.66 cachesize 150
Jan 25 10:56:31 dnsmasq[19925]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth
Jan 25 10:56:31 dnsmasq[19925]: warning: no upstream servers configured
Jan 25 10:56:31 dnsmasq-dhcp[19925]: DHCP, static leases only on 50.0.0.0, lease time 1d
Jan 25 10:56:31 dnsmasq[19925]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/addn_hosts - 3 addresses
Jan 25 10:56:31 dnsmasq-dhcp[19925]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/host
Jan 25 10:56:31 dnsmasq-dhcp[19925]: read /var/lib/neutron/dhcp/30e668d5-eb07-423d-aeb6-d408a715e9bb/opts
ovs-vsctl show looks good on both nodes :-
[root@juno1dev ~(keystone_admin)]# ovs-vsctl show
9734c6fb-448e-4052-94e9-15dce59b43f8
Bridge br-ex
Port "enp2s0"
Interface "enp2s0"
Port phy-br-ex
Interface phy-br-ex
type: patch
options: {peer=int-br-ex}
Port "qg-1e009472-ca"
Interface "qg-1e009472-ca"
type: internal
Port br-ex
Interface br-ex
type: internal
Bridge br-int
fail_mode: secure
Port "qr-bda23703-70"
tag: 5
Interface "qr-bda23703-70"
type: internal
Port int-br-ex
Interface int-br-ex
type: patch
options: {peer=phy-br-ex}
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port "tape0a57cc5-96"
tag: 5
Interface "tape0a57cc5-96"
type: internal
Port br-int
Interface br-int
type: internal
Bridge br-tun
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port br-tun
Interface br-tun
type: internal
Port "vxlan-c0a80089"
Interface "vxlan-c0a80089"
type: vxlan
options: {df_default="true", in_key=flow, local_ip="192.168.0.127", out_key=flow, remote_ip="192.168.0.137"}
ovs_version: "2.1.3"
[root@juno1dev ~(keystone_admin)]#