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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi Allain,<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span lang="EN-US" style="color:#1F497D">Thank you for your advice! By following your suggestion, the FDB for floating IP can be installed on compute node. However there is a problem within the use case for RFE
“Add l2pop support for floating IP resources”. The use case can be summarized as two VM instances, residing on different networks, communicate via their respective FIP addresses. The flows for floating IP on compute node:<o:p></o:p></span></a></p>
<p class="MsoNormal"><span lang="EN-US"><img width="1020" height="128" id="Picture_x0020_3" src="cid:image006.jpg@01D49637.2C7DDA00"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">To use the flows for floating IP, the VM on compute node needs to have the same dl_vlan (local VLAN ID) which is 1. According to your previous email, the VM must be launched on the external network.
Thus for the use case, the two VM resides on different external networks where the floating IPs for two VMs are. Thus another VM’s dl_vlan won’t be 1 and the flows for floating IP can’t be matched.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Based on the above analysis, the two VM instances, residing on different networks,
<b>can’t</b> communicate via their respective FIP addresses. Could you please help review and comment?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Xu, Chenjie<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><a name="_____replyseparator"></a><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Legacy, Allain [mailto:Allain.Legacy@windriver.com]
<br>
<b>Sent:</b> Friday, December 14, 2018 8:55 PM<br>
<b>To:</b> Xu, Chenjie <chenjie.xu@intel.com><br>
<b>Cc:</b> Peters, Matt <Matt.Peters@windriver.com>; starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> RE: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">An FDB entry for a Floating IP resource would only be required on nodes with ports attached to the related external network. Normally that means only the network nodes that are
hosting virtual routers attached to those external networks rather than compute nodes. However, there are less frequently used scenarios that involve customers launching VM instances directly on external networks and in those scenarios the external network
will be instantiated in some compute nodes as well as the network nodes. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">In your test scenario, the external network will only be present on the network node and therefore only the agent running on the network node will be capable of processing any related
FDB entries. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Allain<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">Allain Legacy</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">,
Software Developer, Wind River</span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><br>
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">direct 613.270.2279 fax 613.492.7870 skype allain.legacy<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#404040">350 Terry Fox Drive, Suite 200, Ottawa, Ontario, K2K 2W5<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><br>
<br>
</span><span lang="EN-US"><a href="http://www.windriver.com/" title=""Innovators Start Here" "><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#CC0000;text-decoration:none"><img border="0" width="160" height="92" id="Picture_x0020_6" src="cid:image001.png@01D49632.CEB88F40" alt="WIND"></span></a></span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt">
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Xu, Chenjie [</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span style="font-size:11.0pt">mailto:chenjie.xu@intel.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">]
<br>
<b>Sent:</b> Friday, December 14, 2018 3:24 AM<br>
<b>To:</b> Legacy, Allain<br>
<b>Cc:</b> Peters, Matt; </span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span style="font-size:11.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-US" style="font-size:11.0pt"><br>
<b>Subject:</b> FW: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi Allain,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">As you suggested, I’m testing the 2 changes together. However I find that the fdb for floatingip can’t be installed on the br-tun of the compute node. Because the network-id in fdb is not in the
LocalVlanManager. The details are below and could you please help review and comment?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The environment: latest DevStack with 1 controller node and 1 compute node<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The network topology is below:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="146" height="306" id="Picture_x0020_2" src="cid:image002.jpg@01D49632.CEB88F40" alt="cid:image002.jpg@01D49632.CEB88F40"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Steps:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Create an external network external-net<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron net-create external-net --router:external True --provider:network_type vxlan<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Create a subnet on external-net<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron subnet-create external-net 192.168.25.0/24 --name external-subnet --allocation-pool start=192.168.25.200,end=192.168.25.250<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Create an internal network, create a subnet on net4<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron net-create net4<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron subnet-create net4 192.168.2.0/24 --name subnet4<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Create a router, set router gateway as external-net, add subnet4 to router<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron router-create router<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron router-gateway-set $router-id $external-net-id<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:0cm"><span lang="EN-US" style="color:#1F497D">neutron router-interface-add $router-id $subnet4-id<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">5.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Create a VM vm-1 on net4 (vm-1 runs on compute node)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">6.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Allocate floating IP FIP-1 on external-net through horizon<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">7.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Associate FIP-1 with vm-1 through horizon<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The fdb is below:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="857" height="38" id="_x0000_i1028" src="cid:image003.jpg@01D49632.CEB88F40" alt="cid:image003.jpg@01D49632.CEB88F40"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The OVS agent on the compute node receives the FDB:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="860" height="38" id="Picture_x0020_4" src="cid:image004.jpg@01D49632.CEB88F40" alt="cid:image004.jpg@01D49632.CEB88F40"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">In OVS agent, LocalVlanManager is used to map tunnel ids or vlan ids to internal vlans:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/vlanmanager.py">https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/vlanmanager.py</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">After OVS agent receiving the FDB, it will try to get LocalVlanMapping from LocalVlanMannager:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py#L558">https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py#L558</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/l2pop/rpc_manager/l2population_rpc.py#L237">https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/l2pop/rpc_manager/l2population_rpc.py#L237</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">However the network-id f2ebf82a-e788-4456-8516-c95b12f91d49 is not in the LocalVlanManager. Thus the fdb can’t be installed on br-tun. The mapping in the LocalVlanManager in the OVS agent which is
on the compute node is below:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="861" height="39" id="Picture_x0020_5" src="cid:image005.jpg@01D49632.CEB88F40" alt="cid:image005.jpg@01D49632.CEB88F40"></span><span lang="EN-US" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Analysis:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The vm-1 is created on internal network net4 . When creating vm-1, a port in the net4 will be bound to vm-1. Thus the network-id can be added to the LocalVlanManager. The network id for floating
IP is used in FDB but the corresponding network is an external network. And this external network’s network id is not in the LocalVlanManager in the OVS agent which is on the compute node.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best Regard,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Xu, Chenjie<o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Legacy, Allain [</span><span lang="EN-US"><a href="mailto:Allain.Legacy@windriver.com"><span style="font-size:11.0pt">mailto:Allain.Legacy@windriver.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">]
<br>
<b>Sent:</b> Friday, December 7, 2018 10:20 PM<br>
<b>To:</b> Xu, Chenjie <</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span style="font-size:11.0pt">chenjie.xu@intel.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">>; Peters, Matt <</span><span lang="EN-US"><a href="mailto:Matt.Peters@windriver.com"><span style="font-size:11.0pt">Matt.Peters@windriver.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">><br>
<b>Cc:</b> </span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span style="font-size:11.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-US" style="font-size:11.0pt"><br>
<b>Subject:</b> RE: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The change that is being reviewed here was originally a part of a larger commit (</span><span lang="EN-US"><a href="http://stash.wrs.com/projects/CGCS/repos/github.com.openstack.neutron/commits/9f926a5d2539b0b0451c50053244a8fa6c43bf3c"><span style="color:#1F497D;text-decoration:none">9f926a5d253</span></a><span style="color:#1F497D">).
They should be implemented together or at least tested together. I seem to remember that there was information missing in case 1 that prevented a proper FDB notification from being generated.<o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Please retest your scenarios and capture the input parameters to add_fdb_entries(), remove_fdb_entries(), and update_fdb_entries() in neutron/plugins/ml2/drivers/l2pop/rpc.py:L2populationAgentNotifyAPI
to be sure that expected notifications are published.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Allain<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">Allain Legacy</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">,
Software Developer, Wind River</span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><br>
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">direct 613.270.2279 fax 613.492.7870 skype allain.legacy<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#404040">350 Terry Fox Drive, Suite 200, Ottawa, Ontario, K2K 2W5<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><br>
<br>
</span><span lang="EN-US"><a href="http://www.windriver.com/" title=""Innovators Start Here" "><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#CC0000;text-decoration:none"><img border="0" width="160" height="92" id="Picture_x0020_1" src="cid:image001.png@01D49632.CEB88F40" alt="WIND"></span></a></span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt">
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Xu, Chenjie [</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span style="font-size:11.0pt">mailto:chenjie.xu@intel.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">]
<br>
<b>Sent:</b> Friday, December 07, 2018 3:42 AM<br>
<b>To:</b> Peters, Matt<br>
<b>Cc:</b> </span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span style="font-size:11.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-US" style="font-size:11.0pt"><br>
<b>Subject:</b> Re: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi Matt,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Ryan Tidwell comments on this patch and he thinks that AFTER_DELETE notification can be used to trigger l2pop.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://review.openstack.org/#/c/611261/">https://review.openstack.org/#/c/611261/</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://review.openstack.org/#/c/611261/4/neutron/db/l3_db.py">https://review.openstack.org/#/c/611261/4/neutron/db/l3_db.py</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">From the comment in the following line:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://github.com/starlingx-staging/stx-neutron/blob/master/neutron/services/l3_router/service_providers/l2pop.py#L276">https://github.com/starlingx-staging/stx-neutron/blob/master/neutron/services/l3_router/service_providers/l2pop.py#L276</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">It seems that the router_id and port_id in AFTER_DELETE notification are None. As a result of that, the last_known_router_id and last_fixed_port_id should be used to construct FDB entries which
are used to remove FDBs on each host. However, I print the notification in the following 2 cases:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Case-1:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo4">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Allocate floating ip fip-1<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo4">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Associate fip-1 with vm-1<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo4">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Delete fip-1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Case-2:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Allocate floating ip fip-1<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Associate fip-1 with vm-1<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Disassociate fip-1 with vm-1<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="color:#1F497D"><span style="mso-list:Ignore">4)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">Delete fip-1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The notification for case1 and case 2 are attached. router_id and port_id are not None in case-1 and are None in case-2. Thus in case-1, AFTER_DELETE notification can be used. In case-2, FDB will
be removed by step 3, thus no need to remove again. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Based on the above analysis, I think we can use AFTER_DELETE notification. Could you please comment and review?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Xu, Chenjie<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Peters, Matt [</span><span lang="EN-US"><a href="mailto:Matt.Peters@windriver.com"><span style="font-size:11.0pt">mailto:Matt.Peters@windriver.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">]
<br>
<b>Sent:</b> Monday, November 12, 2018 11:19 PM<br>
<b>To:</b> Xu, Chenjie <</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span style="font-size:11.0pt">chenjie.xu@intel.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">><br>
<b>Cc:</b> </span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span style="font-size:11.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-US" style="font-size:11.0pt">; Legacy, Allain <</span><span lang="EN-US"><a href="mailto:Allain.Legacy@windriver.com"><span style="font-size:11.0pt">Allain.Legacy@windriver.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">><br>
<b>Subject:</b> Re: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Hi Chenjie,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">The latest RFE looks good to me.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Regards, Matt<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-CA" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-CA" style="font-size:12.0pt;color:black">"Xu, Chenjie" <</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span lang="EN-CA" style="font-size:12.0pt">chenjie.xu@intel.com</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">><br>
<b>Date: </b>Monday, November 12, 2018 at 1:23 AM<br>
<b>To: </b>"Peters, Matt" <</span><span lang="EN-US"><a href="mailto:Matt.Peters@windriver.com"><span lang="EN-CA" style="font-size:12.0pt">Matt.Peters@windriver.com</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">><br>
<b>Cc: </b>"</span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span lang="EN-CA" style="font-size:12.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">" <</span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span lang="EN-CA" style="font-size:12.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">>,
Allain Legacy <</span><span lang="EN-US"><a href="mailto:Allain.Legacy@windriver.com"><span lang="EN-CA" style="font-size:12.0pt">Allain.Legacy@windriver.com</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">><br>
<b>Subject: </b>RE: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi Matt,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The RFE has been updated and is attached. Could you please help review and comment?</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best Regards,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Xu, Chenjie</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> </span><span lang="EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Peters, Matt [</span><span lang="EN-US"><a href="mailto:Matt.Peters@windriver.com"><span style="font-size:11.0pt">mailto:Matt.Peters@windriver.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">]
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<b>Sent:</b> Friday, November 9, 2018 9:22 PM<br>
<b>To:</b> Xu, Chenjie <</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span style="font-size:11.0pt">chenjie.xu@intel.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">>; Legacy, Allain <</span><span lang="EN-US"><a href="mailto:Allain.Legacy@windriver.com"><span style="font-size:11.0pt">Allain.Legacy@windriver.com</span></a></span><span lang="EN-US" style="font-size:11.0pt">><br>
<b>Cc:</b> </span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span style="font-size:11.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-US" style="font-size:11.0pt"><br>
<b>Subject:</b> Re: [Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming</span><span lang="EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Hi Chenjie,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">The RFE looks good. The use cases are clear and detailed.</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">I only have a few minor review comments (see attached).</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Regards, Matt</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"> </span><span lang="EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-CA" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-CA" style="font-size:12.0pt;color:black">"Xu, Chenjie" <</span><span lang="EN-US"><a href="mailto:chenjie.xu@intel.com"><span lang="EN-CA" style="font-size:12.0pt">chenjie.xu@intel.com</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">><br>
<b>Date: </b>Thursday, November 1, 2018 at 4:28 AM<br>
<b>To: </b>"Peters, Matt" <</span><span lang="EN-US"><a href="mailto:Matt.Peters@windriver.com"><span lang="EN-CA" style="font-size:12.0pt">Matt.Peters@windriver.com</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">>, Allain Legacy <</span><span lang="EN-US"><a href="mailto:Allain.Legacy@windriver.com"><span lang="EN-CA" style="font-size:12.0pt">Allain.Legacy@windriver.com</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">><br>
<b>Cc: </b>"</span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span lang="EN-CA" style="font-size:12.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">" <</span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span lang="EN-CA" style="font-size:12.0pt">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-CA" style="font-size:12.0pt;color:black">><br>
<b>Subject: </b>[Starlingx-discuss] Analysis of patch 9f926a5 for StartlingX upstreaming</span><span lang="EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"> </span><span lang="EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi Matt/Allain,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">We analyze the patch 9f926a5 related to l2pop. An RFE “Add l2pop support for floating ip resources” has been written and is attached. The test case is provided by Allain. Could you please help to review and comment? Thanks
very much!</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best Regards,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Xu, Chenjie</span><span lang="EN-CA"><o:p></o:p></span></p>
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