[ovs-discuss] ARP replies across bridge to internal port
Colby Walsworth
colby at sdsc.edu
Wed Mar 31 02:34:11 UTC 2021
Hello everyone,
Im running into some strange issues. We are running openstack and using
openvswitch for the networking.
I have a linux interface that is vlan tagged: eg eth0.108. This
interface is added to the br-provider ovs bridge. All the openstack
floating ips are in this vlan.
I have also added an internal port (br-provider-int) that has an ip on
this same vlan. It seems that any external arp replies to not get passed
from the external interface (eth0.108) to the internal port. The only
arp replies I see come from the floating ip network.
Here are the flows on the bridge:
ovs-ofctl dump-flows br-provider
cookie=0xd55f2346067d2b44, duration=874326.302s, table=0,
n_packets=1466073142, n_bytes=4794745231173,
priority=4,in_port="phy-br-provider",dl_vlan=1 actions=strip_vlan,NORMAL
cookie=0xd55f2346067d2b44, duration=875176.481s, table=0,
n_packets=100823855, n_bytes=4246236669,
priority=2,in_port="phy-br-provider" actions=drop
cookie=0xd55f2346067d2b44, duration=875176.491s, table=0,
n_packets=1703397708, n_bytes=571753447972, priority=0 actions=NORMAL
Any suggestions on how I might be able to resolve this. I need this
internal port to be able to communicate with external hosts on this same
vlan, and also all the floating ips inside the openstack networking.
Thanks,
Colby
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