[ovs-discuss] Fwd: Bonding issues with ovs

Ryan Young ryanyoung.soloy at gmail.com
Tue Apr 23 06:56:44 UTC 2013


Hi,
Sorry for the unprofessional behavior. I setup LACP Bonding following the
steps below:

1. Modify the configuration files for bond0,eth2,eth3 to enable lacp
bonding:
#################
DEVICE="bond0"
BOOTPROTO="static"
ONBOOT="yes"
TYPE="ethernet"
IPADDR=192.168.234.2
NETMASK=255.255.255.0
BONDING_OPTS="miimon=100 mode=4 xmit_hash_policy=2"
##################
DEVICE=eth2
BOOTPROTO=none
TYPE="Ethernet"
ONBOOT=yes
MASTER=bond0
SLAVE=yes
##################
DEVICE=eth3
BOOTPROTO=none
TYPE="Ethernet"
ONBOOT=yes
MASTER=bond0
SLAVE=yes
###################

2. Setup openvswitch and attach bond0 to ovs bridge:
#ifconfig
bond0     Link encap:Ethernet  HWaddr 00:26:B9:52:3C:E9
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:87 errors:0 dropped:0 overruns:0 frame:0
          TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:21622 (21.1 KiB)  TX bytes:3328 (3.2 KiB)
br0       Link encap:Ethernet  HWaddr 00:26:B9:52:3C:E9
          inet addr:192.168.234.3  Bcast:192.168.234.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2505 (2.4 KiB)  TX bytes:0 (0.0 b)
eth2      Link encap:Ethernet  HWaddr 00:26:B9:52:3C:E9
          UP BROADCAST SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:32 Memory:da000000-da012800
eth3      Link encap:Ethernet  HWaddr 00:26:B9:52:3C:E9
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:87 errors:0 dropped:0 overruns:0 frame:0
          TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:21622 (21.1 KiB)  TX bytes:3328 (3.2 KiB)
          Interrupt:42 Memory:dc000000-dc012800
###############################
#ovs-vsctl show
01ae1e95-9739-4c84-88e8-4eb2a2187ba0
    Bridge "br0"
        Port "bond0"
            Interface "bond0"
        Port "br0"
            Interface "br0"
                type: internal

After the configuration I found my network not stable. My ssh session would
have no response every 30s. Which I guess the legacy LACP method is
incompatible with ovs. If I changed the mode to active-backup, the network
works normally.

Any suggestion would be appreciated.

BR,
Ryan



2013/4/23 Ben Pfaff <blp at nicira.com>

> Please keep questions on the mailing list.  This is the only reply
> you'll get off-list.
>
> It doesn't make any sense to me.  You're doing something wrong, but you
> haven't provided any information that would allow me to guess what.
>
> On Tue, Apr 23, 2013 at 01:33:17PM +0800, Ryan Young wrote:
> > Hi Ben??
> > Any suggestion about my question?
> > Thanks.
> >
> > BR,
> > Ryan
> >
> > ---------- Forwarded message ----------
> > From: Ryan Young <ryanyoung.soloy at gmail.com>
> > Date: 2013/4/21
> > Subject: Bonding issues with ovs
> > To: discuss at openvswitch.org
> >
> >
> > Hi,
> > Recently I am trying to using ovs together with bonding ethernet
> > ports(eth0,eth1) in LACP mode. The ethernet ports were bonded(bond0)
> before
> > the ovs was setup with configuring
> "/net/sysconfig/network-script/ifcfg-*",
> > and after I set up the openvswitch I just attached bond0 to the ovs
> bridge.
> > This works normally in active-backup mode. But when I changed the bonding
> > mode to lacp, the network looks instable as every 30s my ssh console lost
> > control. Any issues regarding to this problem? Is it incompatible between
> > ovs and the legacy bonding method?
> >
> > BR,
> > Ryan
>
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