[ovs-discuss] OVS-DPDK IP fragmentation require

Hui Xiang xianghuir at gmail.com
Thu Jul 27 04:43:03 UTC 2017


Thanks Darrell, comment inline.

On Thu, Jul 27, 2017 at 12:08 PM, Darrell Ball <dball at vmware.com> wrote:

>
>
>
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> *From: *<ovs-discuss-bounces at openvswitch.org> on behalf of Hui Xiang <
> xianghuir at gmail.com>
> *Date: *Wednesday, July 26, 2017 at 7:47 PM
> *To: *"ovs-discuss at openvswitch.org" <ovs-discuss at openvswitch.org>
> *Subject: *[ovs-discuss] OVS-DPDK IP fragmentation require
>
>
>
> Hi guys,
>
>
>
>   Seems OVS-DPDK still missing IP fragmentation support, is there any
> schedule to have it?
>
> OVS 2.9
>
> I'm  transferring to use OVN, but for those nodes which have external
> network connection, they may face this problem,
>
> except to configure Jumbo frames, is there any other workaround?
>
>
>
> I am not clear on the situation however.
>
> You mention about configuring jumbo frames which means you can avoid the
> fragments by doing this ?
>
No, I can't guarantee that, only can do it inside OpenStack, it is limited.

> If this is true, then this is the best way to proceed since performance
> will be better.
>
> What is wrong with jumbo frames ?
>
It's good but it's limited can't be guaranteed, so I am asking is there any
other way without IP fragmentation so far.

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> BR.
>
> Hui.
>
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