[ovs-discuss] Transparent vlan and flat neutron networks
skaplons at redhat.com
Fri Jan 8 16:16:47 UTC 2021
I was today checking why vlan tagged packets can't reach the destination vm
when flat network with transparent vlan is used.
It seems for me that in case of flat neutron network openflow rule created in
table=0 by ovn is like:
cookie=0x779c3409, duration=5186.275s, table=0, n_packets=316, n_bytes=37480,
So if we have there network with vlan configured, it don't match that rule (and
any other rule in the table=0) and such packet isn't processed by other rules.
When I added rule like:
cookie=0x0, duration=450.544s, table=0, n_packets=70, n_bytes=7194,
Connectivity was working fine.
@Ihar - do You think it should be changed in the ovn as a follow up to Your
patch  to not match on "vlan_tci=0x0000/0x1000" for flat networks with vlan
Or @Daniel - maybe neutron-ovn driver should set something differently? I
couldn't find today what is exactly the difference between flat and vlan networks
in ovn mechanism driver.
Principal Software Engineer
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