Hello I have few questions about improving performance of our openvswitch implementation. Now we are using some old openvswitch (1.8 or something like that) on few machines. We are going to update them. We are using them for routers for our software defined network.
Details: 1.Machines have few ovs bridges. 2.Every bridge have one local interface (with assigned ip) and a lot of gre tunnels. 3.Machines use ospf to communicate with our internal network (to other machines - gre tunnels, its not reachable from inside of ovs networks). 4.They have dummy interface with IP (other machines in network use this ip for gre tunnels) 5. This machines have other interface to communicate with internet. 6. we have own modified openflow controller Its something like this: http://blog.scottlowe.org/2012/10/31/layer-3-routing-with-open-vswitch/ But we use gre tunnels instead of vlans and separate ovs bridges. first question- is DPDK fit here? if other nodes are communicating with ip on dummy interface its going trough linux routing and then to openvswitch or directly from interface to ovs? Second question - I watched this video: https://www.youtube.com/watch?v=MbBX_J5zR4w DPDK performance drop a lot when number of flows increase - was it fixed? or can i expect low performance when i will have ~250 flows per bridge? third question - i have idea to implement routing in openvswitch - is there a way to "forward" packets between ovs bridges (i would modify it using flows)? or i have to connect everything to one bridge (i would like to avoid it because of modified controller - don't know what will happen)? or i can use another bridge over interfaces connected to local interfaces or something? last question - i saw that "ovs-ofctl" commands have problems with multiple flow tables (in 2.3 and older openvswitches) - for examples ovs-ofctl replace-flows. Is it fixed in 2.4? Or someone can fix that? Sorry for my bad english. Regards Krzysztof _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
