Hi Ethan, I looked at the document, and saw we can use tag to configure vlan for the VMs, and does not involve openflow at all.
Now I have some follow up questions regarding the use of openflow in openvswitch: 1) If tag and trunks are used for VLAN, under what use cases we need to use SET_VLAN_ID, STRIP_VLAN_ID actions in openflow in openvswitch, or they are useless in openvswitch? 2) Is multi-cast and broad-cast handled in openvswitch as well without openflow? 3) If multi-cast and broad-cast to be achieved using openflow, would we need an output action for each forwarding port? 4) What is the max. limit of action-lists in a openflow message? 5) What will happen if tag and trunks are used in openvswitch and some openflow VLAN actions are also specified? What is the order is processing of both? Or should this combination be forbidden? It is a lot of questions. I really appreciate if you could clarify my doubts! Thanks! Yimin On Wed, Jun 20, 2012 at 9:26 AM, YIMIN CHEN <ymchen.n...@gmail.com> wrote: > Hi Ethan, > > Thank you very much for your reply! I will take a look at > ovs-vswitch.conf.db man page. > > > Thanks! > Yimin > > On Wed, Jun 20, 2012 at 4:45 AM, Ethan Jackson <et...@nicira.com> wrote: >> I'd have a look in the ovs-vswitchd.conf.db man page which documents >> the tag and trunks options in the port table. With those, you >> shouldn't need to mess around with OpenFlow at all. >> >> Ethan >> >> On Mon, Jun 18, 2012 at 8:44 PM, YIMIN CHEN <ymchen.n...@gmail.com> wrote: >>> Hello, >>> >>> I am trying to set up 4 VMs on 2 HOSTs running openflow openvswitchs. >>> >>> >>> HOST 1 HOST2 >>> >>> VM1 (vlan 1) VM4 (vlan1) >>> VM2 (vlan 1) >>> VM3 (vlan 2) >>> >>> The goal is to have VM1, VM2, and VM4 be able to talk to each other, >>> but not VM3. VM ports are access mode, so VMs do not have VLAN >>> knowledge. >>> >>> My question is how to setup openflow flows to achieve these. I can see >>> the use of SET_VLAN_ID, OUTPUT, STRIP_VLAN_ID actions in this case, >>> but couldn't figure out how FLOOD_ACTIONS can be used here. Do I need >>> to configure STP in order to use FLOOD? Will openvswitch automatically >>> learn which ports to flood in ARP broadcast case? Or I need explicitly >>> specify which ports to forward for vlan1, etc? >>> >>> Thank you! >>> Yimin >>> _______________________________________________ >>> openflow-discuss mailing list >>> openflow-discuss@lists.stanford.edu >>> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
