[ovs-discuss] OVS

Ammu ammukeerthu at gmail.com
Wed Mar 20 17:31:53 UTC 2019


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.
> > >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openvswitch.org/pipermail/ovs-discuss/attachments/20190320/fff0ab49/attachment.html>


More information about the discuss mailing list