[ovs-discuss] restarting openvswitch leaves ovs bridge down and with no IP

Fri Jan 29 16:16:39 UTC 2016

Yes, it's the same OS when I test between OVS versions.

Operating System: CentOS Linux release 7.1.1503 (Core)
Kernel: Linux 3.10.0-327.4.5.el7.x86_64
Architecture: x86-64

From:	Guru Shetty <guru at ovn.org>
To:	EDGAR CANTU/Austin/IBM at IBMUS
Cc:	bugs at openvswitch.org
Date:	01/29/2016 09:51 AM
Subject:	Re: [ovs-discuss] restarting openvswitch leaves ovs bridge down
            and with no IP

On 27 January 2016 at 14:04, EDGAR CANTU <eocantu at us.ibm.com> wrote:
  Hello,

  The openvswitch version on master seems to be wiping out the bridge's IP
  when openvswitch gets restarted and it is only after restarting network
  services that the IP comes back.
  I'm using commit 6872bf1eb7e46f9c202d512aa5ca6d99fe35d23e
  I've also verified that I don' see this issue with versions 2.3.1 and
  2.4.0

Also what operating system is this? Since you are using systemctl, I assume
this is Fedora?

  Here are the network-scripts I have:

  # cat ifcfg-enp0s9
  DEVICE=enp0s9
  ONBOOT=yes
  DEVICETYPE=ovs
  TYPE=OVSPort
  OVS_BRIDGE=br-ex
  BOOTPROTO=none
  HOTPLUG=no

  # cat ifcfg-br-ex
  DEVICE=br-ex
  ONBOOT=yes
  DEVICETYPE=ovs
  TYPE=OVSBridge
  BOOTPROTO=static
  IPADDR=192.168.2.103
  NETMASK=255.255.255.0
  HOTPLUG=no

  Before restarting openvswitch:
  -------------------------

  # ovs-vsctl show
  d69922d5-097e-4b66-bd70-3cd568a35989
  Bridge br-ex
  Port br-ex
  Interface br-ex
  type: internal
  Port "enp0s9"
  Interface "enp0s9"
  ovs_version: "2.5.90"

  # ovs-ofctl show br-ex
  OFPT_FEATURES_REPLY (xid=0x2): dpid:000008002798f8e5
  n_tables:254, n_buffers:256
  capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
  actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src
  mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
  2(enp0s9): addr:08:00:27:98:f8:e5
  config: 0
  state: 0
  current: 1GB-FD COPPER AUTO_NEG
  advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO_NEG
  supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO_NEG
  speed: 1000 Mbps now, 1000 Mbps max
  LOCAL(br-ex): addr:08:00:27:98:f8:e5
  config: 0
  state: 0
  speed: 0 Mbps now, 0 Mbps max
  OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0

  # ip addr
  4: enp0s9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
  master ovs-system state UP qlen 1000
  link/ether 08:00:27:98:f8:e5 brd ff:ff:ff:ff:ff:ff
  inet6 fe80::a00:27ff:fe98:f8e5/64 scope link
  valid_lft forever preferred_lft forever
  7: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
  UNKNOWN
  link/ether 08:00:27:98:f8:e5 brd ff:ff:ff:ff:ff:ff
  inet 192.168.2.103/24 brd 192.168.2.255 scope global br-ex
  valid_lft forever preferred_lft forever
  inet6 fe80::f0d3:52ff:fee7:7e4a/64 scope link
  valid_lft forever preferred_lft forever

  After restarting openvswitch:
  ------------------------

  # ovs-ofctl show br-ex
  OFPT_FEATURES_REPLY (xid=0x2): dpid:000008002798f8e5
  n_tables:254, n_buffers:256
  capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
  actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src
  mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
  2(enp0s9): addr:08:00:27:98:f8:e5
  config: 0
  state: 0
  current: 1GB-FD COPPER AUTO_NEG
  advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO_NEG
  supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-FD COPPER AUTO_NEG
  speed: 1000 Mbps now, 1000 Mbps max
  LOCAL(br-ex): addr:08:00:27:98:f8:e5
  config: PORT_DOWN
  state: LINK_DOWN
  speed: 0 Mbps now, 0 Mbps max
  OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0

  # ovs-vsctl show
  d69922d5-097e-4b66-bd70-3cd568a35989
  Bridge br-ex
  Port br-ex
  Interface br-ex
  type: internal
  Port "enp0s9"
  Interface "enp0s9"
  ovs_version: "2.5.90"

  # ip addr
  4: enp0s9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
  master ovs-system state UP qlen 1000
  link/ether 08:00:27:98:f8:e5 brd ff:ff:ff:ff:ff:ff
  inet6 fe80::a00:27ff:fe98:f8e5/64 scope link
  valid_lft forever preferred_lft forever
  8: br-ex: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
  link/ether 08:00:27:98:f8:e5 brd ff:ff:ff:ff:ff:ff

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