Hi Michal,
     Thanks for the detailed explanation. The ODL_LOCAL_IP helped define 
interfaces as we needed.
Thanks
Badri

From: Michał Skalski [mailto:[email protected]]
Sent: Friday, July 31, 2015 2:41 AM
To: Venkataraghavan, C
Cc: Sabapathy, Ravi; [email protected]; Viswanatha, Badrinath; 
[email protected]; <[email protected]>
Subject: Re: [ovsdb-dev] DevStack-opendaylight on a multi-node setup

Hi,
The local_ip attribute inside ovs configuration indicate the endpoint of vxlan 
tunnel on specific node. As you can see here [1]  value of this attribute is 
save inside $ODL_LOCAL_IP which is by default equal to HOST_IP: [2]. So when 
you define HOST_IP it will be used as a vxlan endpoint which cause that tunnel 
traffic will go through interface with this IP address assigned. You can 
overwrite this by explicit defining ODL_LOCAL_IP in your local.conf.
Here is an example of mine local.conf file: [3]

[1] 
https://github.com/openstack/networking-odl/blob/master/devstack/plugin.sh#L341
[2] 
https://github.com/openstack/networking-odl/blob/master/devstack/plugin.sh#L333
[3]https://gist.github.com/michalskalski/b6f12b318e279ebf3deb
Regards,
Michal

2015-07-30 20:37 GMT+02:00 
<[email protected]<mailto:[email protected]>>:
Resending  Ravi’s mail with watermark removed.

Hi Vishal,

                (Resending the mail by removing “Internal use” tag)

                We forgot to mention a detail in our multi-node setup i.e., the 
overlay used is VxLan (Q_ML2_TENANT_NETWORK_TYPE=vxlan) . When I checked about 
ODL_PROVIDER_MAPPINGS, it works only with VLAN type of tenant network.
                How do we attach a physical  interface for a vxlan type of 
tenant network?


Regards,
Ravi


-----Original Message-----
From: 
[email protected]<mailto:[email protected]>
 [mailto:[email protected]] On Behalf Of Vishal Thapar
Sent: Thursday, July 30, 2015 1:54 AM
To: Viswanatha, Badrinath; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: Venkataraghavan, C
Subject: Re: [ovsdb-dev] DevStack-opendaylight on a multi-node setup

Hi Badri,

Try this: `ODL_PROVIDER_MAPPINGS=physnet1:eth1`

Regards,
Vishal.


From: 
[email protected]<mailto:[email protected]>
 [mailto:[email protected]] On Behalf Of 
[email protected]<mailto:[email protected]>
Sent: 29 July 2015 11:29
To: [email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: [email protected]<mailto:[email protected]>
Subject: [ovsdb-dev] DevStack-opendaylight on a multi-node setup


Hi All,
   We are trying to setup a multi-node devstack setup with opendaylight ML2 
plugin.

The local.conf, we use with devstack does not have an option  to specify the 
tenant physical interfaces. It only has options for specifying the management 
IP address ( and by extension the eth0 ) and the external network ( eth2 ).

Can you please help
1)      How to specify tenant network ( VM data network) to be setup only on 
eth1 of the compute nodes. ?
2)      If possible, share the local.conf, that you might have used with your 
devstack on a similar topology, specifying the physical interfaces.

Thanks
Badri

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