[ovs-discuss] Multicasting with OpenvSwitches

OpenvSwitch openvswitch.org at siimnet.dk
Fri Nov 13 07:25:55 UTC 2015


when trying to run pacemaker+corosync in two VMs interconnected by open vswtiches I needed to revert to unicast, as multicast worked strange.

Verifying multicast with omping between two VMs, multicast would work the first 180sec then stop, wondering how come and if possible to change this behaviour?

TIA

/Steffen

# ovs-vsctl --version
ovs-vsctl (Open vSwitch) 2.3.2
Compiled Jun 27 2015 18:39:30
DB Schema 7.6.2

#omping afnA afnB
...
afnA :   unicast, seq=179, size=69 bytes, dist=0, time=0.237ms
afnA : multicast, seq=179, size=69 bytes, dist=0, time=0.351ms
afnA :   unicast, seq=180, size=69 bytes, dist=0, time=0.209ms
afnA : multicast, seq=180, size=69 bytes, dist=0, time=0.334ms
afnA :   unicast, seq=181, size=69 bytes, dist=0, time=0.310ms
afnA :   unicast, seq=182, size=69 bytes, dist=0, time=0.189ms
afnA :   unicast, seq=183, size=69 bytes, dist=0, time=0.319ms
afnA :   unicast, seq=184, size=69 bytes, dist=0, time=0.265ms



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