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<font face="Calibri,sans-serif" class=""><span style="font-size: 15px;" class="">S</span></font><span style="font-family: Calibri, sans-serif; font-size: 15px;" class="">ubbareddy,</span>
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<span class="">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?</span></div>
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Tenants are not able to create their own floating IP networks. That is handled by the administrator. A provider network needs the router:external attribute set to TRUE to be eligible as a floating pool. </div>
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<span class="">Issues I am facing here are:<o:p class=""></o:p></span></div>
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<span class="">I . if I add multiple subnets to external network , how to create floating ip from specific subnet?</span></div>
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As far as I know, you can’t. Not sure about Juno, but in Havana there was no way to specify an address from the pool with the floatingip-create command. The address used would be the next available address. It will consume all addrs from the allocation range
in subnet1, then move on to subnet2.</div>
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<span class="">Ii . can I create multiple external networks with single L3 agent?</span></div>
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Yes, starting with Icehouse. There is no special configuration as far as i know. You can have multiple provider networks with router:external set to true.</div>
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<span class="">iii. should I create virtual interfaces like eth2.23(23 is vlan) and add them to br-ex for each vlan?</span></div>
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You will not want to add multiple interfaces to the br-ex bridge if that’s what you’re using, as you would then bridge all of the vlans. Rather than using a hard-defined bridge in the l3_agent.ini, set set external_network_bridge to ‘br-int’ or just leave it
blank. For every floating pool you want to create, use the net-create/subnet-create commands to create the networks and set router:external to true. Neutron will place both the qg and qr ports in the integration bridge, and leverage the corresponding provider
bridge you specified in net-create. </div>
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<div class="">When tenants create their router and use router-gateway-set to attach to one of the networks you created, Neutron will connect the router ports to br-int, set the internal vlan accordingly on each port, and build the corresponding flows on the
integration and provider bridges. </div>
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<div class="">The idea is to leverage OVS to do the VLAN tagging for you, so don’t put eth2.23 in the bridge - put eth2 in the provider bridge and specify VLAN 23 as the segmentation Id in the net-create command. You can leverage the same provider bridge for
multiple VLANs when OVS does the tagging.</div>
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<div class="">Hope that helps.</div>
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<div class="">James</div>
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<span class="">Correct me if I am wrong in understanding floating ip networks in neutron.</span></div>
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<div class="">On Oct 16, 2014, at 8:05 PM, Chinasubbareddy M <<a href="mailto:chinasubbareddy_m@persistent.co.in" class="">chinasubbareddy_m@persistent.co.in</a>> wrote:</div>
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<span style="color: rgb(31, 73, 125);" class="">Thank you so much of your clarification james.<o:p class=""></o:p></span></div>
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<span style="color: rgb(31, 73, 125);" class="">Can you please guide me for my second question that I asked in the mail?<o:p class=""></o:p></span></div>
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<span style="color: rgb(31, 73, 125);" class="">If each tenant wants to create their own floating ip networks , what is the best design?<o:p class=""></o:p></span></div>
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<span style="color: rgb(31, 73, 125);" class=""> </span></div>
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<b class=""><span style="font-size: 10pt; font-family: Tahoma, sans-serif;" class="">From:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif;" class=""><span class="Apple-converted-space"> </span>James Denton [<a href="mailto:james.denton@rackspace.com" class="">mailto:james.denton@rackspace.com</a>]<span class="Apple-converted-space"> </span><br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, October 16, 2014 11:12 PM<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>Chinasubbareddy M;
<a href="mailto:openstack@lists.openstack.org" class="">openstack@lists.openstack.org</a><br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [Openstack] [openstack][icehouse][neutron][floatingip][br-ex]<o:p class=""></o:p></span></div>
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<span style="font-size: 11.5pt;" class="">S<span style="" class="">ubbareddy,</span></span><o:p class=""></o:p></div>
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<span style="font-size: 11.5pt;" class="">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,<span class="Apple-converted-space"> </span><b class="">would</b> connect to the integration
bridge via a patch port as you’ve described.</span><o:p class=""></o:p></div>
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<span style="font-size: 11.5pt;" class="">James</span><o:p class=""></o:p></div>
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<b class=""><span style="" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="" class="">Chinasubbareddy M <<a href="mailto:chinasubbareddy_m@persistent.co.in" style="color: purple; text-decoration: underline;" class="">chinasubbareddy_m@persistent.co.in</a>><br class="">
<b class="">Date:<span class="Apple-converted-space"> </span></b>Thursday, October 16, 2014 at 11:58 AM<br class="">
<b class="">To:<span class="Apple-converted-space"> </span></b>"<a href="mailto:openstack@lists.openstack.org" style="color: purple; text-decoration: underline;" class="">openstack@lists.openstack.org</a>" <<a href="mailto:openstack@lists.openstack.org" style="color: purple; text-decoration: underline;" class="">openstack@lists.openstack.org</a>><br class="">
<b class="">Subject:<span class="Apple-converted-space"> </span></b>[Openstack] [openstack][icehouse][neutron][floatingip][br-ex]<o:p class=""></o:p></span></div>
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<span style="" class="">Hi,<o:p class=""></o:p></span></div>
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<span style="" class=""> <o:p class=""></o:p></span></div>
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<span style="" class=""><span class="">1.<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span></span><span style="" class="">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 .<o:p class=""></o:p></span></div>
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<span style="" class=""><span class="">2.<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span></span><span style="" class="">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?<o:p class=""></o:p></span></div>
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<span style="" class="">Issues I am facing here are:<o:p class=""></o:p></span></div>
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<span style="" class=""> <o:p class=""></o:p></span></div>
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<span style="" class="">I . if I add multiple subnets to external network , how to create floating ip from specific subnet?<o:p class=""></o:p></span></div>
<div style="margin: 0in 0in 0.0001pt 1in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">
<span style="" class="">Ii . can I create multiple external networks with single L3 agent?<o:p class=""></o:p></span></div>
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<span style="" class="">iii. should I create virtual interfaces like eth2.23(23 is vlan) and add them to br-ex for each vlan?<o:p class=""></o:p></span></div>
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<span style="" class=""> <span class="Apple-converted-space"> </span><o:p class=""></o:p></span></div>
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<span style="" class="">Correct me if I am wrong in understanding floating ip networks in neutron.<o:p class=""></o:p></span></div>
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<span style="" class="">Here is my ovs-vsctl output:<o:p class=""></o:p></span></div>
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ovs-vsctl show<o:p class=""></o:p></span></div>
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<span style="" class="">f85c99e8-7423-42da-879e-8d4e3f79c7f2<o:p class=""></o:p></span></div>
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<span style="" class=""> Bridge br-ex<o:p class=""></o:p></span></div>
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<span style="" class=""> Port "em3.29"<o:p class=""></o:p></span></div>
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<span style="" class=""> Interface "qvo9bce9829-2a"<o:p class=""></o:p></span></div>
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