On 6/7/2019 12:57 PM, Cong Wang wrote:
On Thu, Jun 6, 2019 at 12:36 AM Steinar H. Gunderson
wrote:
On Wed, Jun 05, 2019 at 06:17:51PM -0700, Cong Wang wrote:
Hmm, sounds like openvswitch should pad the packets in this scenario,
like hardware switches padding those on real wires.
Well, openv
On Fri, Jun 07, 2019 at 12:57:57PM -0700, Cong Wang wrote:
>> Well, openvswitch say that they just throw packets around and assume they're
>> valid... :-)
> _If_ the hardware switch has to pad them (according to what you said),
> why software switch doesn't?
Trust me, I'm telling them they have to
On Thu, Jun 6, 2019 at 12:36 AM Steinar H. Gunderson
wrote:
>
> On Wed, Jun 05, 2019 at 06:17:51PM -0700, Cong Wang wrote:
> > Hmm, sounds like openvswitch should pad the packets in this scenario,
> > like hardware switches padding those on real wires.
>
> Well, openvswitch say that they just thro
On Wed, Jun 05, 2019 at 06:17:51PM -0700, Cong Wang wrote:
> Hmm, sounds like openvswitch should pad the packets in this scenario,
> like hardware switches padding those on real wires.
Well, openvswitch say that they just throw packets around and assume they're
valid... :-)
In any case, if you ta
On Wed, Jun 5, 2019 at 12:27 AM Steinar H. Gunderson
wrote:
>
> On Tue, Jun 04, 2019 at 09:31:42PM -0700, Cong Wang wrote:
> >> This works fine for large packets, but the system in the other end
> >> drops smaller packets, such as ARP requests and small ICMP pings.
> > Is the other end Linux too?
On Tue, Jun 04, 2019 at 09:31:42PM -0700, Cong Wang wrote:
>> This works fine for large packets, but the system in the other end
>> drops smaller packets, such as ARP requests and small ICMP pings.
> Is the other end Linux too?
Yes and no. The other end is Linux with Open vSwitch, which sends the
On Thu, May 30, 2019 at 2:08 AM Steinar H. Gunderson
wrote:
>
> Hi,
>
> I'm trying to connect some VMs over EoGRE (using gretap on my side):
>
> ip link add foo type gretap remote local
>
> This works fine for large packets, but the system in the other end
> drops smaller packets, such as ARP
On Fri, May 31, 2019 at 12:38:32AM +0200, Steinar H. Gunderson wrote:
> As a proof of concept (no error handling, probably poor performance, not
> implemented for IPv6, other issues?), this patch works and fixes my problem:
Hi,
Any comments on this?
/* Steinar */
--
Homepage: https://www.sesse.
On Thu, May 30, 2019 at 10:35:08AM +0200, Steinar H. Gunderson wrote:
> After looking at the GRE packets in Wireshark, it turns out the Ethernet
> packets within the EoGRE packet is undersized (under 60 bytes), and Linux
> doesn't pad them. I haven't found anything in RFC 7637 that says anything
>
Hi,
I'm trying to connect some VMs over EoGRE (using gretap on my side):
ip link add foo type gretap remote local
This works fine for large packets, but the system in the other end
drops smaller packets, such as ARP requests and small ICMP pings.
After looking at the GRE packets in Wireshar
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