-------------------------------------

Before VM start:

# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
qlen 1000
    link/ether 00:22:19:13:fb:64 brd ff:ff:ff:ff:ff:ff
3: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
    link/ether 56:b8:ff:0c:fa:71 brd ff:ff:ff:ff:ff:ff

# ovs-vsctl show
409b63f5-36d3-4bac-a490-8f63e2cce0c7
    Bridge "br0"
        Port "eth0"
            Interface "eth0"
        Port "br0"
            Interface "br0"
                type: internal
    ovs_version: "2.1.0"

---------------------------------------

After the VM start:
# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
qlen 1000
    link/ether 00:22:19:13:fb:64 brd ff:ff:ff:ff:ff:ff
3: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
    link/ether 56:b8:ff:0c:fa:71 brd ff:ff:ff:ff:ff:ff
5: tap0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state 
UNKNOWN qlen 500
    link/ether 92:6a:d5:42:cc:17 brd ff:ff:ff:ff:ff:ff


# ovs-vsctl show
409b63f5-36d3-4bac-a490-8f63e2cce0c7
    Bridge "br0"
        Port "eth0"
            Interface "eth0"
        Port "tap0"
            Interface "tap0"
        Port "br0"
            Interface "br0"
                type: internal
    ovs_version: "2.1.0"


On Saturday, March 29, 2014 8:47:42 PM, Flavio Leitner <[email protected]> wrote:
 
On Sat, Mar 29, 2014 at 05:39:00PM -0700, Jeff W wrote:

> So may I believe there must be some thing wrong as eth0 doesn't
> present? ip link do show some thing new which is "ovs-system" is down,
> but it makes me more confuse, it looks more like an ovs staff, not the
> "eth0". However I added it to br0, but still no lucky.

Can you send the output of 'ovs-vsctl show' and 'ip link' as it is now?

Thanks
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