Han Zhou, Oct 01, 2023 at 21:30: > Please note that tunnels are needed not only between nodes related to same > logical switches, but also when they are related to different logical > switches connected by logical routers (even multiple LR+LS hops away).
Yep. > To clarify a little more, openstack deployment can have different logical > topologies. So to evaluate the impact of monitor_all settings there should > be different test cases to capture different types of deployment, e.g. > full-mesh topology (monitor_all=true is better) v.s. "small islands" > toplogy (monitor_all=false is reasonable). This is one thing to note for the recent ovn-heater work that adds openstack test cases. > FDB and MAC_binding tables are used by ovn-controllers. They are > essentially the central storage for MAC tables of the distributed logical > switches (FDB) and ARP/Neighbour tables for distributed logical routers > (MAC_binding). A record can be populate by one chassis and consumed by many > other chassis. > > monitor_all should work the same way for these tables: if monitor_all = > false, only rows related to "local datapaths" should be downloaded to the > chassis. However, for FDB table, the condition is not set for now (which > may have been a miss in the initial implementation). Perhaps this is not > noticed because MAC learning is not a very widely used feature and no scale > impact noticed, but I just proposed a patch to enable the conditional > monitoring: > https://patchwork.ozlabs.org/project/ovn/patch/20231001192658.1012806-1-hz...@ovn.org/ Ok thanks! _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
