[ovs-discuss] OVS

[Ben Pfaff]

2.9.0 is also old, even in the 2.9.x series 2.9.4 has been released.  If
you're going to use an old release branch please at least use the latest
version from that branch.

On Wed, Mar 20, 2019 at 11:01:53PM +0530, Ammu wrote:
> Hi Pfaff,
> 
> Thanks for suggesting.
> 
> I had another setup with following configuration. Still I see the same. DF
> bit set.
> 
> Linux Version 3.10.0-862.11.6.el7.x86_64
> Red Hat Enterprise Linux Server release 7.5 (Maipo)
> OvS version 2.9.0
> 
> Is that okay? If not, I will pull out the latest version of OvS and will
> update you on that tomorrow.
> 
> -
> Keerthana
> 
> On Wed, 20 Mar 2019 21:36 Ben Pfaff, <blp at ovn.org> wrote:
> 
> > I'd suggest upgrading.  Open vSwitch 2.7.0 is too old.  Even within the
> > 2.7.x series, the latest version is 2.7.8.  It is a waste of our time to
> > try to try to debug a problem that might already have been fixed.
> >
> > On Wed, Mar 20, 2019 at 04:34:45PM +0530, Ammu wrote:
> > > Hi Pfaff,
> > >
> > > Thank you for your response.
> > >
> > > Here are the requirements you requested for:
> > >
> > > [root at localhost ~]# uname -a
> > > Linux localhost.localdomain 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22
> > > 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
> > >
> > > [root at localhost ~]# ovs-vsctl show
> > > 0278e2a3-3c9f-4102-9449-65e3710cb5ad
> > >     ovs_version: "2.7.0"
> > >
> > > -
> > > Keerthana
> > >
> > >
> > > On Wed, Mar 20, 2019 at 6:56 AM Ben Pfaff <blp at ovn.org> wrote:
> > >
> > > > On Tue, Mar 19, 2019 at 05:19:42PM +0530, Ammu wrote:
> > > > >
> > > >
> > https://stackoverflow.com/questions/55223517/allow-df-not-to-be-set-on-gre-vxlan-tunnels
> > > >
> > > > That question reads:
> > > >
> > > >     I have created a bridge with a tunnel interface(be it either
> > > >     vxlan/gre) and an internal interface. When incoming packets get
> > > >     encapsulated with either vxlan/gre tunnel header, I don't want the
> > > >     DF bit set on the outer IP layer of tunnelled packet.
> > > >
> > > >     Despite setting df_default tunnel option to False while creating
> > the
> > > >     tunnel interface, I get the DF bit set on the outer IP layer of the
> > > >     tunnelled packet.
> > > >
> > > > Glancing through the userspace and datapath code in the tree, it looks
> > > > to me like the DF setting propagates through the whole stack, so I'm
> > > > surprised there's a bug.  Perhaps Greg can take a look at some point,
> > if
> > > > he has time.
> > > >
> > > > We probably need to know what version of OVS you're using, what version
> > > > of the kernel you're running, and whether you're using the Linux kernel
> > > > built-in version of the OVS kernel module or the one that is shipped
> > > > with OVS itself.
> > > >
> >