Thank you so much  of your clarification james.
Can you please guide me for my second question that I asked in the mail?
If each tenant wants to create their own floating ip networks , what is the 
best design?

From: James Denton [mailto:james.den...@rackspace.com]
Sent: Thursday, October 16, 2014 11:12 PM
To: Chinasubbareddy M; openstack@lists.openstack.org
Subject: Re: [Openstack] [openstack][icehouse][neutron][floatingip][br-ex]

Subbareddy,

The external bridge (br-ex), when set, is used only for the external (qg) port 
of the router AFAIK and does not need to connect to br-int. The internal 
interface of the router (qr) is connected to the integration bridge. If 
floating IPs are working ok, and your router is properly routing traffic to 
instances, then your configuration is working properly as-is. A provider 
bridge, like br-eth1, would connect to the integration bridge via a patch port 
as you've described.

James

From: Chinasubbareddy M 
<chinasubbaredd...@persistent.co.in<mailto:chinasubbaredd...@persistent.co.in>>
Date: Thursday, October 16, 2014 at 11:58 AM
To: "openstack@lists.openstack.org<mailto:openstack@lists.openstack.org>" 
<openstack@lists.openstack.org<mailto:openstack@lists.openstack.org>>
Subject: [Openstack] [openstack][icehouse][neutron][floatingip][br-ex]

Hi,


1.       I have successfully configured floating ips  in neutron and everything 
working fine , but as per the docs there should be int-br-ex and phy-br-int  
veth pair should be created  between br-int and br-ex, but  that  is not 
created in my setup ,floating ip are working fine, Please suggest .

2.       Added one of my nic which has connected to trunk port of switch to 
br-ex , I would like create multiple external networks and use each one for 
them for different  tenants or if different tenants wants to create their own 
floating ip networks ,what is the solution?

Issues I am facing here are:



I . if I add multiple subnets to external network , how to create floating ip 
from specific subnet?

Ii . can I create multiple external networks with single L3 agent?

iii.  should I create virtual interfaces like eth2.23(23 is vlan)  and add them 
to br-ex for each vlan?

Correct me if  I am wrong in understanding  floating ip networks in neutron.


Here is my ovs-vsctl output:

ovs-vsctl show
f85c99e8-7423-42da-879e-8d4e3f79c7f2
    Bridge br-ex
        Port "em3.29"
            Interface "em3.29"
        Port "qg-01b3854d-fa"
            Interface "qg-01b3854d-fa"
                type: internal
        Port br-ex
            Interface br-ex
                type: internal
    Bridge "br-eth1"
        Port "phy-br-eth1"
            Interface "phy-br-eth1"
        Port "br-eth1"
            Interface "br-eth1"
                type: internal
        Port "em2"
            Interface "em2"
    Bridge br-int
        Port "qr-b70d92cb-cd"
            tag: 2
            Interface "qr-b70d92cb-cd"
                type: internal
        Port "qvoa239a290-cf"
            tag: 2
            Interface "qvoa239a290-cf"
        Port br-int
            Interface br-int
                type: internal
        Port "tapfaa69064-de"
            tag: 5
            Interface "tapfaa69064-de"
                type: internal
        Port "int-br-eth1"
            Interface "int-br-eth1"
        Port "qvo9bce9829-2a"
            tag: 5
            Interface "qvo9bce9829-2a"
        Port "tapd3e11080-82"
            tag: 2
            Interface "tapd3e11080-82"
                type: internal

regards,
subbareddy,
persistent systems ltd.

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