Re: [ovirt-users] oVIRT 4 / OVN / Communication issues of instances between nodes.
From: "Devin Acosta" <devin(a)pabstatencio.com>
To: "Marcin Mirecki" <mmirecki(a)redhat.com>
Cc: "users" <Users(a)ovirt.org>
Sent: Monday, December 5, 2016 12:11:46 PM
Subject: Re: [ovirt-users] oVIRT 4 / OVN / Communication issues of instances between
nodes.
Marcin,
Also I noticed in your original post it mentions:
ip link - the result should include a link called genev_sys_ ...
I noticed that on my hosts I don't see any links with name: genev_sys_ ??
Could this be a problem?
lo:
enp4s0f0:
enp4s0f1:
enp7s0f0:
enp7s0f1:
bond0:
DEV-NOC:
ovirtmgmt:
bond0.700@bond0:
DEV-VM-NET:
bond0.705@bond0:
;vdsmdummy;:
vnet0:
vnet1:
vnet2:
vnet3:
vnet4:
ovs-system:
br-int:
vnet5:
vnet6:
Hi Devin,
What distribution and kernel version are you using?
One thing you could check is whether the vport_geneve kernel module
is being loaded, e.g. you should see something like:
$ lsmod | grep vport
vport_geneve 12560 1
openvswitch 246755 5 vport_geneve
If vport_geneve is not loaded, you could "sudo modprobe vport_geneve"
to make sure it's available and can be loaded.
The first 100 lines or so of ovs-vswitchd.log might have some useful
information about where things are going wrong.
It does sound as though there is some issue with geneve tunnels,
which would certainly explain issues with inter-node traffic.
Regards,
Lance