# ifcfg-br-ex for Openstack **URL:** \ **Category:** SUSE OpenStack Cloud\ **Created:** [June 10, 2015, 9:07am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142 "2015-06-10T09:07:08Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 10, 2015, 9:07am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/1 "2015-06-10T09:07:08Z")
Hi masters, I would install openstack kilo multi-node in SLE 12, and I have encountered problem when I prepare the settings for ovs. There are two ifcfg needed for the openvswitch for the openstack br-ex using, ifcfg-br-ex, ifcfg-eth0(which to be used external int for VM instance). I set the /etc/sysconfig/network/ifcfg-br-ex follow the forum thread that can only one be found about ovs. # [https://forums.opensuse.org/showthread.php/497652-OpenVswitch-how-do-I-assign-ip-address-to-ovs-bridge](https://forums.opensuse.org/showthread.php/497652-OpenVswitch-how-do-I-assign-ip-address-to-ovs-bridge) BOOTPROTO=‘static’ BROADCAST=‘’ ETHTOOL\_OPTIONS=‘’ BRIDGE=‘yes’ BRIDGE\_PORTS= ‘eth0 br-ex’ IPADDR=‘192.168.2.51’ MTU=‘’ NAME=‘’ NETMASK=‘255.255.255.0’ NETWORK=‘’ REMOTE\_IPADDR=‘’ STARTMODE=‘hotplug’ #DHCLIENT\_SET\_DEFAULT\_ROUTE=‘yes’ ONBOOT=‘yes’ and set /etc/sysconfig/network/ifcfg-eth0 BOOTPROTO=‘none’ #BROADCAST=‘’ #ETHTOOL\_OPTIONS=‘’ #IPADDR=‘192.168.2.51’ #MTU=‘’ #NAME=‘’ #NETMASK=‘255.255.255.0’ #NETWORK=‘’ #REMOTE\_IPADDR=‘’ STARTMODE=‘auto’ #DHCLIENT\_SET\_DEFAULT\_ROUTE=‘yes’ #ONBOOT=‘yes’ But it not work after service network restart, can’t ping other IP in same subnet. I had tried another setting the official document provide, but not work too. # [https://en.opensuse.org/Portal:Wicked/OpenvSwitch](https://en.opensuse.org/Portal:Wicked/OpenvSwitch) And also search in mailing list of ovs official site, no solution found. # [http://openvswitch.org/pipermail/discuss/2014-October/015350.html](http://openvswitch.org/pipermail/discuss/2014-October/015350.html) I have some experience of openstack kilo deploying in RHEL(SL, Centos)7, but suse’s ifcfg-br-ex seems not like RHEL’s. Please help me to get the correct ifcfg, or give me some reference. We are extremely grateful for any reply. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\ **Post date:** [June 15, 2015, 7:30am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/2 "2015-06-15T07:30:10Z")
lapac1750, It appears that in the past few days you have not received a response to your posting. That concerns us, and has triggered this automated reply. Has your issue been resolved? If not, you might try one of the following options: - Visit [http://www.suse.com/support](http://www.suse.com/support) and search the knowledgebase and/or check all the other support options available. - You could also try posting your message again. Make sure it is posted in the correct newsgroup. ([http://forums.suse.com](http://forums.suse.com)) Be sure to read the forum FAQ about what to expect in the way of responses: [http://forums.suse.com/faq.php](http://forums.suse.com/faq.php) If this is a reply to a duplicate posting, please ignore and accept our apologies and rest assured we will issue a stern reprimand to our posting bot. Good luck! Your SUSE Forums Team [http://forums.suse.com](http://forums.suse.com) ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 16, 2015, 9:13am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/3 "2015-06-16T09:13:27Z")
Does anyone install openstack kilo /openvswitch v2.1.x in SLE 12? Please kindly share your ifcfg-br-ex and ifcfg-eth0(which port is ovs binded). Your sharing will help most SLE12 novice learners to setup ovs quickly and easily. ---
**Author:** ![aspiers](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@aspiers](https://forums.suse.com/u/aspiers)\ **Post date:** [June 18, 2015, 3:58am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/4 "2015-06-18T03:58:43Z")
I guess you are installing from [http://download.opensuse.org/repositories/Cloud:/OpenStack:/Kilo/SLE\_12/](http://download.opensuse.org/repositories/Cloud:/OpenStack:/Kilo/SLE_12/) - is that right? What other IP in the same subnet are you trying to ping? Did you try examining network traffic from both sides using wireshark or tcpdump? You may also find [https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/templates/default/suse-cfg.erb](https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/templates/default/suse-cfg.erb) and [https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/recipes/default.rb#L433](https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/recipes/default.rb#L433) informative - this is how that config file is dynamically generated via the SUSE OpenStack Cloud product. ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 18, 2015, 4:52am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/5 "2015-06-18T04:52:30Z")
Thank you for your rapid reply. > [@aspiers;28432](#): > > I guess you are installing from [http://download.opensuse.org/repositories/Cloud:/OpenStack:/Kilo/SLE\_12/](http://download.opensuse.org/repositories/Cloud:/OpenStack:/Kilo/SLE_12/) - is that right? I think maybe it is as same as zypper addrepo -f obs://Cloud:OpenStack:Kilo/SLE\_12 Kilo The add repo method is provided by openstack official document [http://docs.openstack.org/kilo/install-guide/install/zypper/content/ch\_basic\_environment.html#basics-packages](http://docs.openstack.org/kilo/install-guide/install/zypper/content/ch_basic_environment.html#basics-packages) [QUOTE=aspiers;28432] What other IP in the same subnet are you trying to ping? Did you try examining network traffic from both sides using wireshark or tcpdump?[/QUOTE] I use network node (br-ex have 192.168.2.51, bind the eth0) to ping compute node(eth4 have 192.168.2.52), and use “tcpdump -i eth4 -c2 icmp” in compute node. 0 packets received by filter. And run “tcpdump -i eth0” in network node when ping is keeping, no pass-through traffic on eth0, except STP packet generated from switch… Seems like eth0 have not successfully binded with br-ex. [QUOTE=aspiers;28432] You may also find [https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/templates/default/suse-cfg.erb](https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/templates/default/suse-cfg.erb) and [https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/recipes/default.rb#L433](https://github.com/crowbar/barclamp-network/blob/master/chef/cookbooks/network/recipes/default.rb#L433) informative - this is how that config file is dynamically generated via the SUSE OpenStack Cloud product.[/QUOTE] Good suggestion!! I must take the time to comprehensively understand. Thank you for your professional opinion again. ---
**Author:** ![aspiers](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@aspiers](https://forums.suse.com/u/aspiers)\ **Post date:** [June 18, 2015, 11:22pm UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/6 "2015-06-18T23:22:18Z")
Could you provide the output of these commands? - ip addr show - brctl show - ip route - iptables -nvL - ethtool eth0 ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 22, 2015, 4:50am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/7 "2015-06-22T04:50:58Z")
[QUOTE=aspiers;28446]Could you provide the output of these commands? - ip addr show - brctl show - ip route - iptables -nvL - ethtool eth0[/QUOTE] Sorry for not replying sooner because the Chinese Dragon Boat Festival consecutive holidays. > [@aspiers;28446](#): > > - ip addr show network:~ # ip addr show 1: lo: \ mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid\_lft forever preferred\_lft forever inet6 ::1/128 scope host valid\_lft forever preferred\_lft forever 2: eth0: \ mtu 1500 qdisc mq master ovs-system state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a3 brd ff:ff:ff:ff:ff:ff 3: eth1: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a4 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:67ff:fec6:d6a4/64 scope link valid\_lft forever preferred\_lft forever 4: eth2: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a5 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:67ff:fec6:d6a5/64 scope link valid\_lft forever preferred\_lft forever 5: eth3: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a6 brd ff:ff:ff:ff:ff:ff inet 172.24.12.148/24 brd 172.24.12.255 scope global eth3 valid\_lft forever preferred\_lft forever inet6 fe80::21e:67ff:fec6:d6a6/64 scope link valid\_lft forever preferred\_lft forever 6: br-ex: \ mtu 1500 qdisc noqueue state UNKNOWN group default link/ether 42:3b:6b:9e:c9:ab brd ff:ff:ff:ff:ff:ff inet 192.168.2.51/24 brd 192.168.2.255 scope global br-ex valid\_lft forever preferred\_lft forever inet6 fe80::403b:6bff:fe9e:c9ab/64 scope link valid\_lft forever preferred\_lft forever 7: ovs-system: \ mtu 1500 qdisc noop state DOWN group default link/ether 1a:f0:aa:f0:ee:51 brd ff:ff:ff:ff:ff:ff > [@aspiers;28446](#): > > - brctl show network:~ # brctl show If ‘brctl’ is not a typo you can use command-not-found to lookup the package that contains it, like this: cnf brctl network:~ # zypper install brctl Refreshing service ‘SUSE\_Linux\_Enterprise\_Server\_12\_x86\_64’. Retrieving repository ‘Kilo’ metadata …[done] Building repository ‘Kilo’ cache …[done] Loading repository data… Reading installed packages… ‘brctl’ not found in package names. Trying capabilities. No provider of ‘brctl’ found. Resolving package dependencies… Nothing to do. > [@aspiers;28446](#): > > - ip route network:~ # ip route default via 172.24.12.254 dev eth3 proto dhcp 172.24.12.0/24 dev eth3 proto kernel scope link src 172.24.12.148 192.168.2.0/24 dev br-ex proto kernel scope link src 192.168.2.51 > [@aspiers;28446](#): > > - iptables -nvL network:~ # iptables -nvL Chain INPUT (policy ACCEPT 994K packets, 230M bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT 47 – \* \* 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 70754 packets, 11M bytes) pkts bytes target prot opt in out source destination > [@aspiers;28446](#): > > - ethtool eth0 network:~ # ethtool eth0 Settings for eth0: Supported ports: [TP] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on MDI-X: off (auto) Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000007 (7) drv probe link Link detected: yes ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 22, 2015, 4:58am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/8 "2015-06-22T04:58:58Z")
[QUOTE=aspiers;28446]Could you provide the output of these commands? - brctl show [/QUOTE] I’m not sure what brtcl mean, it is used to show openvswitch state? or with another CLI to show? network:~ # ovs-vsctl show 219e04fe-ebe3-498c-a8f5-d13db8007c92 Bridge br-ex Port br-ex Interface br-ex type: internal Port “eth0” Interface “eth0” ovs\_version: “2.1.2” network:~ # ovs-ofctl show br-ex OFPT\_FEATURES\_REPLY (xid=0x2): dpid:0000001e67c6d6a3 n\_tables:254, n\_buffers:256 capabilities: FLOW\_STATS TABLE\_STATS PORT\_STATS QUEUE\_STATS ARP\_MATCH\_IP actions: OUTPUT SET\_VLAN\_VID SET\_VLAN\_PCP STRIP\_VLAN SET\_DL\_SRC SET\_DL\_DST SET\_NW\_SRC SET\_NW\_DST SET\_NW\_TOS SET\_TP\_SRC SET\_TP\_DST ENQUEUE 1(eth0): addr:00:1e:67:c6:d6:a3 config: 0 state: 0 current: 1GB-FD COPPER AUTO\_NEG advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO\_NEG AUTO\_PAUSE supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO\_NEG AUTO\_PAUSE speed: 1000 Mbps now, 1000 Mbps max OFPT\_GET\_CONFIG\_REPLY (xid=0x4): frags=normal miss\_send\_len=0 ---
**Author:** ![rsimai](https://avatars.discourse-cdn.com/v4/letter/r/8edcca/32.png) [@rsimai](https://forums.suse.com/u/rsimai)\ **Post date:** [June 23, 2015, 10:08am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/9 "2015-06-23T10:08:22Z")
> [@lapac1750;28460](#): > > I’m not sure what brtcl mean, it is used to show openvswitch state? or with another CLI to show? I guess you made a typo, however /sbin/brctl shows the state of your ethernet bridge configuration in the linux kernel, see the manpage for reference. ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 23, 2015, 11:25am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/10 "2015-06-23T11:25:17Z")
> [@rsimai;28487](#): > > I guess you made a typo, however /sbin/brctl shows the state of your ethernet bridge configuration in the linux kernel, see the manpage for reference. Thank you for your prompt. I try the cmd in others SLE(I have prepared 3 SLE for openstack 3 nodes topology). “”" controller:~ # brctl show bridge name bridge id STP enabled interfaces compute:~ # brctl show bridge name bridge id STP enabled interfaces network:~ # brctl show If ‘brctl’ is not a typo you can use command-not-found to lookup the package that contains it, like this: cnf brctl “”" I’m exactly sure here is not a typo, because I use the copy & past. I got confused that my notwork node’s brctl was missing. The 3 SLE were installed by the same DVD burned from SLE-12-Server-DVD-x86\_64-GM-DVD1.iso and have installed same license. Whatever, my network node just get the brctl through sftp to other node. “”" network:~ # brctl show bridge name bridge id STP enabled interfaces br-ex 8000.000000000000 no “”" ---
**Author:** ![aspiers](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@aspiers](https://forums.suse.com/u/aspiers)\ **Post date:** [June 23, 2015, 12:01pm UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/11 "2015-06-23T12:01:10Z")
brctl comes from the bridge-utils package - can you install that? ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 23, 2015, 12:11pm UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/12 "2015-06-23T12:11:26Z")
> [@aspiers;28489](#): > > brctl comes from the bridge-utils package - can you install that? No, network node has not installed bridge-utils, I think this is crux. I just run “zypper install bridge-utils”. “”" network:~ # brctl show bridge name bridge id STP enabled interfaces br-ex 8000.000000000000 no “”" Thank you for your very prompt response~! ---
**Author:** ![aspiers](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@aspiers](https://forums.suse.com/u/aspiers)\ **Post date:** [June 23, 2015, 12:42pm UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/13 "2015-06-23T12:42:16Z")
> [@lapac1750;28459](#): > > network:~ # ip addr show > [snipped] > 6: br-ex: \ mtu 1500 qdisc noqueue state UNKNOWN group default > link/ether 42:3b:6b:9e:c9:ab brd ff:ff:ff:ff:ff:ff > inet 192.168.2.51/24 brd 192.168.2.255 scope global br-ex > valid\_lft forever preferred\_lft forever > inet6 fe80::403b:6bff:fe9e:c9ab/64 scope link > valid\_lft forever preferred\_lft forever Shouldn’t that be state UP not state UNKNOWN? ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 24, 2015, 6:44am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/14 "2015-06-24T06:44:30Z")
> [@aspiers;28491](#): > > Shouldn’t that be state UP not state UNKNOWN? I have revised the setting, and service network restart. “”" network:~ # vi /etc/sysconfig/network/ifcfg-br-ex BOOTPROTO=‘static’ BROADCAST=‘’ DEVICETYPE=‘ovs’ TYPE=‘OVSBridge’ ETHTOOL\_OPTIONS=‘’ BRIDGE=‘yes’ BRIDGE\_PORTS= ‘eth0’ BRIDGE\_STP=‘off’ BRIDGE\_FORWARDDELAY=‘0’ IPADDR=‘192.168.2.51’ MTU=‘’ NAME=‘’ NETMASK=‘255.255.255.0’ NETWORK=‘’ REMOTE\_IPADDR=‘’ STARTMODE=‘auto’ #DHCLIENT\_SET\_DEFAULT\_ROUTE=‘yes’ #ONBOOT=‘yes’ HOTPLUG=‘no’ “”" “”" network:~ # ip addr show 8: br-ex: \ mtu 1500 qdisc noqueue state UNKNOWN group default link/ether 2a:d5:07:d6:f2:48 brd ff:ff:ff:ff:ff:ff inet 192.168.2.51/24 brd 192.168.2.255 scope global br-ex valid\_lft forever preferred\_lft forever inet6 fe80::28d5:7ff:fed6:f248/64 scope link valid\_lft forever preferred\_lft forever “”" The state is still UNKNOWN. I have seen some example of bridge setting are BRIDGE\_PORTS= ‘eth0’ but the other one is BRIDGE\_PORTS= ‘eth0 br-ex’ Which one is correct setting? ---
**Author:** ![aspiers](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@aspiers](https://forums.suse.com/u/aspiers)\ **Post date:** [June 24, 2015, 11:46am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/15 "2015-06-24T11:46:19Z")
Seems that you have two overlapping br-ex bridges: one via Linux bridge (i.e. native, shown by brctl) and one via openvSwitch (shown by ovs-vsctl). You shouldn’t have both. BTW this is exactly the kind of grief which SUSE OpenStack Cloud eliminates by doing it all for you 😉 ---
**Author:** ![lapac1750](https://avatars.discourse-cdn.com/v4/letter/l/a3d4f5/32.png) [@lapac1750](https://forums.suse.com/u/lapac1750)\ **Post date:** [June 25, 2015, 9:03am UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/16 "2015-06-25T09:03:58Z")
[QUOTE=aspiers;28521]Seems that you have two overlapping br-ex bridges: one via Linux bridge (i.e. native, shown by brctl) and one via openvSwitch (shown by ovs-vsctl). You shouldn’t have both. BTW this is exactly the kind of grief which SUSE OpenStack Cloud eliminates by doing it all for you ;-)[/QUOTE] I try “brctl show” in the other openstack kilo network node which was deployed by RDO on RHEL 7.0. And compare it with my SLE openstack kilo network node’s. “”" [root@netwo ~]# brctl show bridge name bridge id STP enabled interfaces virbr0 8000.525400223125 yes virbr0-nic '“” So, I use the"brctl delbr br-ex" to delete the dummy br setting on SLE, and service openvswitch restart, service network restart. But still doesn’t work, ping gateway fail. Would please help me to parse these command results again? > [@aspiers;28521](#): > > - ip addr show network:~ # ip addr show 1: lo: \ mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid\_lft forever preferred\_lft forever inet6 ::1/128 scope host valid\_lft forever preferred\_lft forever 2: eth0: \ mtu 1500 qdisc mq master ovs-system state DOWN group default qlen 1000 link/ether 00:1e:67:c6:d6:a3 brd ff:ff:ff:ff:ff:ff 3: eth1: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a4 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:67ff:fec6:d6a4/64 scope link valid\_lft forever preferred\_lft forever 4: eth2: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a5 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:67ff:fec6:d6a5/64 scope link valid\_lft forever preferred\_lft forever 5: eth3: \ mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:1e:67:c6:d6:a6 brd ff:ff:ff:ff:ff:ff inet 172.24.12.148/24 brd 172.24.12.255 scope global eth3 valid\_lft forever preferred\_lft forever inet6 fe80::21e:67ff:fec6:d6a6/64 scope link valid\_lft forever preferred\_lft forever 7: ovs-system: \ mtu 1500 qdisc noop state DOWN group default link/ether 1a:f0:aa:f0:ee:51 brd ff:ff:ff:ff:ff:ff 11: br-ex: \ mtu 1500 qdisc noqueue state UNKNOWN group default link/ether 00:1e:67:c6:d6:a3 brd ff:ff:ff:ff:ff:ff inet 192.168.2.51/24 brd 192.168.2.255 scope global br-ex valid\_lft forever preferred\_lft forever inet6 fe80::4873:25ff:fe71:ff96/64 scope link valid\_lft forever preferred\_lft forever > [@aspiers;28521](#): > > - brctl show network:~ # brctl show bridge name bridge id STP enabled interfaces > [@aspiers;28521](#): > > - ip route network:~ # ip route default via 172.24.12.254 dev eth3 proto dhcp 172.24.12.0/24 dev eth3 proto kernel scope link src 172.24.12.148 192.168.2.0/24 dev br-ex proto kernel scope link src 192.168.2.51 > [@aspiers;28521](#): > > - iptables -nvL network:~ # iptables -nvL Chain INPUT (policy ACCEPT 1631K packets, 322M bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT 47 – \* \* 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 85938 packets, 14M bytes) pkts bytes target prot opt in out source destination > [@aspiers;28521](#): > > - ethtool eth0 network:~ # ethtool eth0 Settings for eth0: Supported ports: [TP] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on MDI-X: on (auto) Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000007 (7) drv probe link Link detected: yes > [@lapac1750](#): > > ovs-vsctl network:~ # ovs-vsctl show 219e04fe-ebe3-498c-a8f5-d13db8007c92 Bridge br-ex Port br-ex Interface br-ex type: internal Port “eth0” Interface “eth0” ovs\_version: “2.1.2” network:~ # ovs-vsctl list-ports br-ex eth0 network:~ # ovs-vsctl list-ifaces br-ex eth0 network:~ # ovs-vsctl iface-to-br eth0 br-ex > [@lapac1750](#): > > ovs-ofctl network:~ # ovs-ofctl show br-ex OFPT\_FEATURES\_REPLY (xid=0x2): dpid:0000001e67c6d6a3 n\_tables:254, n\_buffers:256 capabilities: FLOW\_STATS TABLE\_STATS PORT\_STATS QUEUE\_STATS ARP\_MATCH\_IP actions: OUTPUT SET\_VLAN\_VID SET\_VLAN\_PCP STRIP\_VLAN SET\_DL\_SRC SET\_DL\_DST SET\_NW\_SRC SET\_NW\_DST SET\_NW\_TOS SET\_TP\_SRC SET\_TP\_DST ENQUEUE 1(eth0): addr:00:1e:67:c6:d6:a3 config: 0 state: 0 current: 1GB-FD COPPER AUTO\_NEG advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO\_NEG AUTO\_PAUSE supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO\_NEG AUTO\_PAUSE speed: 1000 Mbps now, 1000 Mbps max LOCAL(br-ex): addr:00:1e:67:c6:d6:a3 config: 0 state: 0 speed: 0 Mbps now, 0 Mbps max OFPT\_GET\_CONFIG\_REPLY (xid=0x4): frags=normal miss\_send\_len=0 network:~ # ovs-ofctl dump-flows br-ex NXST\_FLOW reply (xid=0x4): cookie=0x0, duration=69250.566s, table=0, n\_packets=738, n\_bytes=61689, idle\_age=0, hard\_age=65534, priority=0 actions=NORMAL network:~ # ovs-ofctl dump-ports br-ex OFPST\_PORT reply (xid=0x2): 2 ports port 1: rx pkts=687278, bytes=72309453, drop=0, errs=0, frame=0, over=0, crc=0 tx pkts=19, bytes=942, drop=0, errs=0, coll=0 port LOCAL: rx pkts=20, bytes=1032, drop=0, errs=0, frame=0, over=0, crc=0 tx pkts=566, bytes=38869, drop=0, errs=0, coll=0 Thanks your eye for detail. BTW there are no many people whose have SUSE OpenStack Cloud successfully installed would share his ifcfg…Q\_Q ---
**Author:** ![Jens-U](https://avatars.discourse-cdn.com/v4/letter/j/d78d45/32.png) [@Jens-U](https://forums.suse.com/u/Jens-U)\ **Post date:** [June 30, 2015, 1:06pm UTC](https://forums.suse.com/t/ifcfg-br-ex-for-openstack/27142/17 "2015-06-30T13:06:17Z")
Hi lapac1750, [message deleted - I didn’t notice that this was already covered in a separate branch of this thread.] Regards, Jens