Thanks Alfredo. Yes, a single eth0:

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
...
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:dd:2c:f3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.202/24 brd 192.168.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 240d:1a:3c5:3d00:5054:ff:fedd:2cf3/64 scope global mngtmpaddr dynamic
       valid_lft 10790sec preferred_lft 10790sec
    inet6 fe80::5054:ff:fedd:2cf3/64 scope link
       valid_lft forever preferred_lft forever

and ifcfg-eth0 is unchanged since installation (perhaps I should clean it up a little; could IPv6 be causing problems?):

$ cat /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=eth0
UUID=75c26b23-f3fb-4d3f-a473-5354075d5a25
DEVICE=eth0
ONBOOT=yes
IPADDR=192.168.1.202
PREFIX=24
GATEWAY=192.168.1.1
DNS1=192.168.1.16
DNS2=1.1.1.1
DOMAIN=home
IPV6_PRIVACY=no

More info: This is a VM running CentOS 7.6.1810 on a Fedora KVM host. eth0 is bridged. I did disable and stop network manager and firewalld on the guest.

Bernd.

Hi,

So, IIUC, your server has a single NIC, eth0, right?

Could you provide the configuration file for eth0 before running packstack?, i guess you are using ifcfg files?

Best regards,

Alfredo

On Wed, Jul 31, 2019 at 2:20 AM Bernd Bausch <berndbausch@gmail.com> wrote:

Trying to set up a Stein cloud with Packstack. I want the Openvswitch mech driver and VXLAN type driver. A few weeks ago, the following invocation was successful:

sudo packstack --debug --allinone --default-password pw        \
               --os-neutron-ovs-bridge-interfaces=br-ex:eth0   \
               --os-neutron-ml2-tenant-network-types=vxlan     \
               --os-neutron-ml2-mechanism-drivers=openvswitch  \
               --os-neutron-ml2-type-drivers=vxlan,flat        \
               --os-neutron-l2-agent=openvswitch               \
               --provision-demo-floatrange=10.1.1.0/24         \
               --provision-demo-allocation-pools '["start=10.1.1.10,end=10.1.1.50"]' \
               --os-heat-install=y --os-heat-cfn-install=y

Now, it fails during network setup. My network connection to the Packstack server is severed, and it turns out that its only network interface eth0 has no IP address and is down. No bridge exists.

In the network.pp.finished file, I find various ovs-vsctl commands including add-br, and a command ifdown eth0 which fails with exit code 1 (no error message from the ifdown command is logged).

Can somebody recommend the options required to successfully deploy a Stein cloud based on the Openvswitch and VXLAN drivers?

Thanks much,

Bernd