Hi Uwe,
really I started directly with neutron. Never gone with legacy.
But I suppose there's old config laying around. I still think that
bridge_mapping is needed for VLAN config I use. Every paper describes
GRE config, but I still feel more confortable using VLANs.
Any other help about this issue? Can someone confirm if I can get rid
of the directives in both configs?
I suppose I cannot because they get in effect when started the ovs
plugin.
Thank you in advance.
El dom, 14 de dic 2014 a las 8:40 , Uwe Sauter
<uwe.sauter...@gmail.com> escribió:
Hi,
I presume that you upgraded from an older version that used
nova-network
(now called legacy networking).
Using neutron means that VMs aren't connected to br0 directly any more
as there is a whole virtual networking infrastructure in place.
To give a small overview:
On a compute node a VM connects to br-int (integration bridge). This
bridge itself is connected through a virtual cable to br-tun
(tunneling
bridge). That bridge has also assigned a physical interface that
allows
traffic to flow to the network node
On the network node there also exists a br-tun that has a physical
interface attached. Through this inferface traffic enters the node.
br-tun is virtually connected to br-ex that has a separate physical
interface attached that connects to "the outside", meaning the
networking infrastructure outside your cloud.
I cannot help you with the configuration issue but recommend that you
familiarize yourself with neutron.
Regards,
Uwe
Am 14.12.2014 um 19:36 schrieb Gonzalo Aguilar Delgado:
Hi all,
I'm installing a new compute node from scratch and reviewing all old
config. I've found two setting that seems equal, one in ml2 plugin
and
one in openvswitch.
But I don't really understand why they are.
ovs_neutron_plugin.ini:
bridge_mappings = default:br0,extnet1:br-ex
ml2/ml2_conf.ini:
[ovs]
bridge_mappings = default:br0,extnet1:br-ex
For me it's strange the settings are in both places. I think this
is a
result of upgrading without taking much care of removing old config.
But also it's strange that everything works with the bridges br0
and
br-ex without physical interface. I mean, seems to do nothing but it
needs to be there.
Also I should expect VM be attached to br0 (Default) but it's not,
they
are attached to the br-int (integration bridge), for me this is
correct.
Since it's described here like this:
https://openstack.redhat.com/Networking_in_too_much_detail
And works ok.
So what's the purporse of these bridges?
Here is:
neutron 2.3.4
nova 2.17.0
Best regards,
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