-------- Original Message --------
Subject: Re: [ovs-discuss] OVS_VSWITCHD PROCESS GETS KILLED IF I DELETE THE VETH LINK
Date:   Mon, 16 Dec 2013 12:43:21 +0530
From:   Deepika <[email protected]>
To:     Ben Pfaff <[email protected]>



Hi,

I am using openvswitch version-1.10.0.

The purpose of the test is to verify the switch functionality (STP mode 
enabled) in forwarding packets when I delete the link.

*Topology:*

*             br0
  veth0  /        \veth2
        /          \
  veth1/            \veth3
    br1 ------------br2
*

*         **veth4      veth5*

*            *
*Configurations:*


1.Created bridge br0,br1 and br2 .
2.Added 24 ports to br0 (0-23),br1(24-47),br2(48-71).
3.Created link using command "ip link add type veth"
4.Added the veth ports to bridges .
5.Configured the veth ports to admin up.
6.Enabled STP using the below command for all bridges,
  "ovs-vsctl set bridge br0 stp_enable=true"
7.Set controller IP to bridges.

*Scenario*:

1.Send traffic from port0 (br0 ) and Port24 (br1) .

*       Observation*:
                1.Flows are updated in br0 and br1 and it is passing via veth0 
and veth1 (checked in ifconfig tx and rx stats).

2.Now delete the veth0 and veth1 link using the following command "ip link delete 
veth0 type veth"

*       Observation*:
                *1.ovs-vswitchd process gets killed.*


Please clarify

Thanks,
Deepika


On 12/16/2013 11:31 AM, Ben Pfaff wrote:
On Mon, Dec 16, 2013 at 10:35:51AM +0530, Deepika wrote:
Hi ,
I created the following topology with STP mode enabled.


            veth0      veth1
     br0 ---------------------br1
  veth2\                        / veth4
            \                     /
  veth3   \      br3      /veth5

If I delete the veth link between br0 and br1 ovs-vswitchd process
gets killed.

Is this the expected behaviour ?
No.

What version of Open vSwitch are you using?  Can you give a detailed
test case?

Thanks,

Ben.


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