Open Stack

On Wed, Mar 27, 2019 at 3:34 PM Jay Pipes <jaypipes at gmail.com> wrote:
>
> On 03/27/2019 01:35 AM, Massimo Sgaravatto wrote:
> > No, we are not using Kolla. We use the CentOS rpms to deploy
> >
> > We contacted DELL support for this problem. Since iperf works without
> > problems, they suggest there is something 'wrong' (or at least
> > incompatible with that hw) in the used software (i.e OpenStack and/or
> > related dependencies).
> >
> > As I said disabling tx-checksum-ipv4 I don't see anymore the problem,
> > but the DELL support guy claims that this is not safe because
> > checksumming is not done.
> >
> > I thought that disabling  tx-checksum-ipv4simply means that the checksum
> > is done in software instead of hardware (so just a matter of
> > performance), Am I wrong ?
>
> No, you are correct. Whoever you spoke to at Dell didn't know what they
> were talking about.

+1

we found out that the bad machines had the same firmware for the NIC and got
new ones shipped and much joy afterwards.

> -jay
>


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