[rhos-list] tenant_network_type vlan not working on RHEL 6.4/RDO

Lutz Christoph lchristoph at arago.de
Fri Jul 12 09:42:51 UTC 2013


Hello!

Your part one did it. Grmbl, what a Stoopid(tm) bug.

Many thanks, I owe you a beer.

I have ovs_use_veth = True set in /etc/quantum/quantum.conf, that seems to do it for all parts of Quantum/Neutron.


Best regards / Mit freundlichen Grüßen 
Lutz Christoph 

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________________________________________
Von: Michael Luksch <Michael.Luksch at lcsystems.at>
Gesendet: Freitag, 12. Juli 2013 11:35
An: Lutz Christoph; rhos-list at redhat.com
Cc: Holger Schulz
Betreff: AW: tenant_network_type vlan not working on RHEL 6.4/RDO

(not quoting question, because of HTML)

Hi,

Two things:

1. Your host needs at least one "vlan interface" up, otherwise packets get dropped. This is an bug in rhel/centos 6.4. The vlan itself does not really have to exist.
Common workaround is to set up a dummy vlan interface on the physical interface transporting the VLANs. Dummy meaning here a nonexistent, like:

cat /etc/sysconfig/network-scripts/ifcfg-ethX.666
DEVICE=eth1.666
ONBOOT=yes
TYPE=Ethernet
VLAN=yes

I guess this is what you are experiencing when adding a eth4.40.

2. AFAIK you need to have

use_veth = True

in your quantum.conf

Documentation on that is a little bit lacking last time I checked.

hf,

Michael Luksch




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