Thanks for the quick reply! I have verified that all of these ports are set to untagged. So this is essentially wrong as I see ;-)
Do I need to configure anything else on my hypervisor interfaces or is it just the switch I need to touch? Thanks! Christain Von: Robert Foote [mailto:rfo...@bpsnode.com] Gesendet: Donnerstag, 4. September 2014 16:40 An: Hüning, Christian; Users@lists.opennebula.org Betreff: RE: [one-users] Isolated VMs on different Hosts can't communicate - ONE 4.8, OVS 2.0.1 Your colleague is probably correct. Have you verified that each of the ports on your physical switch, which the hypervisors are plugged into, have those port settings, set to trunk and allow/forward all VLANs? Robert Foote bpsNode www.bpsnode.com <http://www.bpsnode.com> From: Users [mailto:users-boun...@lists.opennebula.org] On Behalf Of Hüning, Christian Sent: Thursday, September 04, 2014 9:27 AM To: Users@lists.opennebula.org <mailto:Users@lists.opennebula.org> Subject: [one-users] Isolated VMs on different Hosts can't communicate - ONE 4.8, OVS 2.0.1 Hi there, I have a cluster of 5 hosts running with openNebula 4.8 and just recently configured OpenvSwitch on all these nodes. Networking is working just fine. This holds also true for VLAN isolation, but just as long as the VMs belonging to the isolated Virtual Network reside on the same physical host. When I move these VMs to different hosts, they cant communicate with each other anymore. Non-isolated nodes can communicate to everywhere without problems. Is that intentional? I chose OpenVswitch because the ONE docs say it requires no support from the switch hardware (or more specifically it says 802.1Q would require support). A colleague suggested it might have to do with the switch not forwarding the tagged packets from Open vSwitch. Can that be the cause? Does OVS even tag the packets? Heres my environment: OpenNebula 4.8 Open vSwitch 2.0.1 Cisco Switch Host OS: Ubuntu Server 14.04 LTS (latest patches) Output from ovs-vsctl show: Bridge "br0" Port "vnet3" Interface "vnet3" Port "bond0" Interface "bond0" Port "vnet1" Interface "vnet1" Port "vnet2" Interface "vnet2" Port "vnet5" Interface "vnet5" Port "br0" Interface "br0" type: internal Port "vnet0" Interface "vnet0" Port "vnet4" Interface "vnet4" ovs_version: "2.0.1" Where br0 is my ovs bridge interface which has the external real IP address configured and bond0 is a link aggregated dual Gbit interface which is the port for br0 I would greatly appreciate some suggestions or ideas on this, since I am a bit lost. Cheers, Christian ----------------------------------------------- Christian Hüning, BSc. Fakultät Technik und Informatik, Department Informatik Berliner Tor 7 20099 Hamburg Web: http://www.mars-group.org _____ <http://www.avast.com/> This email is free from viruses and malware because avast! Antivirus <http://www.avast.com/> protection is active.
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