[ovs-discuss] OVS bridge on boot in Debian

Omar Ramadan oramadan at fb.com
Thu Oct 12 23:31:24 UTC 2017


Hi Guru, Ben,


Thanks for the responses. I originally did a "make install" though I realized there may be some packaging postinst scripts that may need to be run for it to work. I built and installed openvswitch-common and openvswitch-switch.


"ifup --allow=ovs br0" still fails to find br0 but I've made progress nonetheless in the networking journal

vagrant at magma-dev:/etc/network$ sudo journalctl -u networking
Oct 12 23:27:29 magma-dev ovs-vsctl[2127]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --may-exist add-port br0 eth0 --
Oct 12 23:27:29 magma-dev networking[1875]: ovs-vsctl: Error detected while setting up 'eth0'.  See ovs-vswitchd log for details.
Oct 12 23:27:29 magma-dev networking[1875]: ovs-vsctl: The default log directory is "/var/log/openvswitch".
Oct 12 23:27:29 magma-dev ovs-vsctl[2202]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --may-exist add-port br0 eth0 --

vagrant at magma-dev:/var/log/openvswitch$ sudo less ovs-vswitchd.log
2017-10-12T23:27:31.123Z|00112|ofproto|ERR|failed to open datapath br0: No such file or directory
2017-10-12T23:27:31.123Z|00113|bridge|ERR|failed to create bridge br0: No such file or directory

What could be missing?

Best,
Omar


________________________________
From: Guru Shetty <guru at ovn.org>
Sent: Thursday, October 12, 2017 10:50:38 AM
To: Omar Ramadan
Cc: ovs-discuss at openvswitch.org
Subject: Re: [ovs-discuss] OVS bridge on boot in Debian



On 12 October 2017 at 10:29, Omar Ramadan <oramadan at fb.com<mailto:oramadan at fb.com>> wrote:

Hi list,


I am using OVS 2.7.90 with Debian 8.7 and want to configure the switch to be loaded on system initialization. I have installed the service "openvswitch-switch" and added the following in /etc/network/interfaces

How did you install OVS 2.7.90? By 'make install' or via debian packages?



allow-ovs br0

iface br0 inet dhcp

    ovs_type OVSBridge

    ovs_ports eth0


allow-br0 eth0

iface eth0 inet manual

    ovs_bridge br0

    ovs_type OVSPort

I am still unable to load br0 with ifup.


vagrant at magma-dev:/etc/network/interfaces.d$ sudo ifup br0
Lets try with:
ifup --allow=ovs br0



Cannot find device "br0"

Bind socket to interface: No such device


exiting.

Failed to bring up br0.

How do these interfaces get set up? Is there anyway to debug this? I've built this package from source, so I want to make sure I am not missing dependencies. Also should I be adding any additional systemctl units or should adding "openvswitch-switch" be enough?

Best,
Omar

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