Also I have restarted openvswitch-agent on both sides of the broken link and it made no difference...
On Tue, Nov 08, 2016 at 05:43:27PM -0500, Jonathan Proulx wrote: : :I have an odd issue that seems to just be affecting one private :network for one tenant, though I saw a similar thing on a different :project network recently which I 'fixed' by rebooting the hypervisor. :Since this has now (maybe) happened twice I figure I should try to :understand what it is. : :Given the following four VMs on 4 different hypervisors : :vm1 on Hypervisor1 :vm2 on Hypervisor2 :vm3 on Hypervisor3 :------------------- :vm4 on Hypervisor4 : : :vm1 -> vm3 talk fine among themselves but none to 4 : :examining ping traffic transiting from vm1-vm4 I can see arp requests :and responses at vm4 and GRE encapsulated ARP responses on :Hypervisor1's physical interface. : :They look the same to me (same ecap id) coming in as the working vms :traffic, but they never make it to the qvo device which is before :iptables sec_group rules are applied at the tap device. : :attempting to tare down and recreate this resuls in the same first 3 :work last one doesn't split (possibly becuase scheduler puts them in :the same place? haven't checked) : :ovs-vsctl -- set Bridge br-int mirrors=@m -- --id=@snooper2 get Port snooper2 -- --id=@gre-801e0347 get Port gre-801e0347 -- --id=@m create Mirror name=mymirror select-dst-port=@gre-801e0347 select-src-port=@gre-801e0347 output-port=@snooper2 : :tcpdump -i snooper2 : :Only sees ARP requests but no response, what's broken if I can see GRE :encap ARP responses on physical interface but not on gre-<hex> :interface? And why is it not broken for all tunnels endpoints? : :Oddly if I boot a 5th VM on a 5th hypervisor it can talk to 4 but not 1-3 ... : :hypervisors are Ubuntu 14.04 running Mitaka from cloud archive w/ :xenial-lts kernels (4.4.0) : :-Jon : :-- _______________________________________________ OpenStack-operators mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
