[ovs-dev] Re:Re:[PATCH 2/2] ofproto: Do not delete datapath flows on exit by default

Ben Pfaff blp at ovn.org
Wed Mar 25 17:13:12 UTC 2020

On Wed, Mar 25, 2020 at 05:49:07PM +0800, txfh2007 wrote:
> Firstly, for some SDN controller (OVN etc.), the arp request is
> handled by userspace, that means: When ovs-vswitchd exits, the
> remaining traffic should only keep for about 30s as for most linux
> kernel, every 30s it should send an arp request out(for partner's mac
> addr), and when there is no reply, the traffic would breakdown. So how
> could we solve this problem if the upgrading should last for several
> minutes?

We can't.

> Secondly, for DPDK datapath, it doesn't work, is it possible that keep
> the netdev datapath's flows when ovs-vsiwtchd exits?


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