On Mon, Feb 15, 2021 at 2:52 PM Daniel Alvarez Sanchez <dalva...@redhat.com> wrote: > Recently we found out that due to a misconfiguration of the OVN bridge > mappings, traffic that should be sent out to an external bridge was tunneled > to the destination. Since the traffic was working, it took a while to spot > the misconfiguration. > > While this can be ok as it keeps everything functional, it can have an impact > in the throughput and the overall performance. The intent of this email is to > gather feedback as to whether we should keep this behavior or rather, drop > the traffic and log the misconfiguration issue (like patch-port is missing, > review the bridge mappings configuration?).
This is a feature. The fact that OVN does not require all chassis in the network to have external connectivity gives it a higher degree of flexibility when compared to other solutions. If you operate OVN as an overlay on top of a L3-only CLOS fabric without EVPN it is required functionality. It allows you to tunnel N/S traffic to chassis in the physical vicinity of the data center border routers and avoid spanning a shared L2 across your DC fabric. OVN used to log the configuration excessively [0], and since then it has luckily been squelched into a single log message [1]. If you are suggesting this may be a source of supportability issues in case one has missed the one log message, perhaps we need some way of making this state observable through a call to `ovn-appctl` or something similar? 0: https://bugs.launchpad.net/ubuntu/+source/ovn/+bug/1865127 1: https://patchwork.ozlabs.org/project/openvswitch/patch/20200519155816.24508-3-ihrac...@redhat.com/ -- Frode Nordahl > Looking forward to hearing from you. > Thanks a lot, > daniel > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
