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<div>Juno </div>
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<div id="AppleMailSignature">Whatever gets it done faster- let me get the three repos aligned. I need to get the ovs/ovn work done so networking-ovn can call it, and the networking-sfc can call networking-ovn.</div>
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<div id="AppleMailSignature">Hopefully I will have it done tomorrow or over the weekend - let's touch base Monday or Sunday night.</div>
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<div id="AppleMailSignature">Regards </div>
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<div id="AppleMailSignature">John</div>
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Sent from my iPhone</div>
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On Jun 2, 2016, at 6:30 PM, Na Zhu <<a href="mailto:nazhu@cn.ibm.com">nazhu@cn.ibm.com</a>> wrote:<br>
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<div><font size="2" face="sans-serif">Hi John,</font><br>
<br>
<font size="2" face="sans-serif">I agree with submitting WIP patches to community, because you already did many works on networking-sfc and networking-ovn, it is better that you submit the initial patches about networking-sfc and networking-ovn, then me and
Srilatha take over the patches. Do you have time to do it? if not, me and Srilatha can help to do it and you are always the co-author.</font><br>
<br>
<font size="2" face="sans-serif"><br>
<br>
<br>
Regards,<br>
Juno Zhu<br>
IBM China Development Labs (CDL) Cloud IaaS Lab<br>
Email: <a href="mailto:nazhu@cn.ibm.com">nazhu@cn.ibm.com</a><br>
5F, Building 10, 399 Keyuan Road, Zhangjiang Hi-Tech Park, Pudong New District, Shanghai, China (201203)</font><br>
<br>
<br>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">From: </font><font size="1" face="sans-serif">John McDowall <<a href="mailto:jmcdowall@paloaltonetworks.com">jmcdowall@paloaltonetworks.com</a>></font><br>
<font size="1" color="#5f5f5f" face="sans-serif">To: </font><font size="1" face="sans-serif">Na Zhu/China/IBM@IBMCN</font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Cc: </font><font size="1" face="sans-serif">"<a href="mailto:discuss@openvswitch.org">discuss@openvswitch.org</a>" <<a href="mailto:discuss@openvswitch.org">discuss@openvswitch.org</a>>, "OpenStack Development
Mailing List" <<a href="mailto:openstack-dev@lists.openstack.org">openstack-dev@lists.openstack.org</a>>, Ryan Moats <<a href="mailto:rmoats@us.ibm.com">rmoats@us.ibm.com</a>>, Srilatha Tangirala <<a href="mailto:srilatta@us.ibm.com">srilatta@us.ibm.com</a>></font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Date: </font><font size="1" face="sans-serif">2016/06/03 00:08</font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Subject: </font><font size="1" face="sans-serif">Re: [ovs-discuss] [OVN] [networking-ovn] [networking-sfc] SFC andOVN</font><br>
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<font size="2" face="Calibri">Juno,</font><br>
<br>
<font size="2" face="Calibri">Sure make sense. I will have ovs/ovn in rough shape by end of week (hopefully) that will allow you to call the interfaces from networking-ovn. Ryan has asked that we submit WIP patches etc so hopefully that will kickstart the review
process.</font><br>
<font size="2" face="Calibri">Also, hopefully some of the networking-sfc team will also be able to help – I will let them speak for themselves.</font><br>
<br>
<font size="2" face="Calibri">Regards</font><br>
<br>
<font size="2" face="Calibri">John</font><br>
<br>
<font size="2" face="Calibri"><b>From: </b>Na Zhu <</font><a href="mailto:nazhu@cn.ibm.com"><font size="2" color="blue" face="Calibri"><u>nazhu@cn.ibm.com</u></font></a><font size="2" face="Calibri">><b><br>
Date: </b>Wednesday, June 1, 2016 at 7:02 PM<b><br>
To: </b>John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><b><br>
Cc: </b>"</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
OpenStack Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">>,
Srilatha Tangirala <</font><a href="mailto:srilatta@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>srilatta@us.ibm.com</u></font></a><font size="2" face="Calibri">><b><br>
Subject: </b>Re: [ovs-discuss] [OVN] [networking-ovn] [networking-sfc] SFC andOVN</font><br>
<br>
<font size="2" face="sans-serif">Hi John,</font><font size="2" face="Calibri"><br>
</font><font size="2" face="sans-serif"><br>
Thanks your reply.</font><font size="2" face="Calibri"><br>
</font><font size="2" face="sans-serif"><br>
Seems you have covered everything :)<br>
The development work can be broken down in 3 parts:<br>
1, add ovn driver to networking-sfc<br>
2, provide APIs in networking-ovn for networking-sfc <br>
3, implement the sfc in ovn</font><font size="2" face="Calibri"><br>
</font><font size="2" face="sans-serif"><br>
So what about we take part 1 and part 2, and you take part 3? because we are familiar with networking-sfc and networking-ovn and we can do it faster:)<br>
<br>
<br>
<br>
<br>
<br>
Regards,<br>
Juno Zhu<br>
IBM China Development Labs (CDL) Cloud IaaS Lab<br>
Email: </font><a href="mailto:nazhu@cn.ibm.com"><font size="2" color="blue" face="sans-serif"><u>nazhu@cn.ibm.com</u></font></a><font size="2" face="sans-serif"><br>
5F, Building 10, 399 Keyuan Road, Zhangjiang Hi-Tech Park, Pudong New District, Shanghai, China (201203)</font><font size="2" face="Calibri"><br>
<br>
<br>
</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
From: </font><font size="1" face="sans-serif">John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="1" color="blue" face="sans-serif"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
To: </font><font size="1" face="sans-serif">Na Zhu/China/IBM@IBMCN</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Cc: </font><font size="1" face="sans-serif">Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="1" color="blue" face="sans-serif"><u>rmoats@us.ibm.com</u></font></a><font size="1" face="sans-serif">>, OpenStack Development Mailing List
<</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="1" color="blue" face="sans-serif"><u>openstack-dev@lists.openstack.org</u></font></a><font size="1" face="sans-serif">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss@openvswitch.org</u></font></a><font size="1" face="sans-serif">"
<</font><a href="mailto:discuss@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss@openvswitch.org</u></font></a><font size="1" face="sans-serif">>, Srilatha Tangirala <</font><a href="mailto:srilatta@us.ibm.com"><font size="1" color="blue" face="sans-serif"><u>srilatta@us.ibm.com</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Date: </font><font size="1" face="sans-serif">2016/06/01 23:26</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Subject: </font><font size="1" face="sans-serif">Re: [ovs-discuss] [OVN] [networking-ovn] [networking-sfc] SFC andOVN</font><font size="2" face="Calibri"><br>
</font>
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</font><font size="2" face="Calibri"><br>
Na/Srilatha,</font><font size="2" face="Calibri"><br>
</font><font size="2" face="Calibri"><br>
Great, I am working from three repos:</font><font size="2" face="Calibri"><br>
</font><font size="2" color="blue" face="Calibri"><u><br>
</u></font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_doonhammer_networking-2Dsfc&d=CwMFoQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=lb7sZo6o-vFSQLHy4n1Z15SjFlZHXBjYRDDXk9di20M&s=-ddZLbnKqv3LwRqTTveuebbVLL9e2A1xRCQBQO--nc0&e="><font size="2" color="blue" face="Calibri"><u>https://github.com/doonhammer/networking-sfc</u></font></a><font size="2" color="blue" face="Calibri"><u><br>
</u></font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_doonhammer_networking-2Dovn&d=CwMFoQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=lb7sZo6o-vFSQLHy4n1Z15SjFlZHXBjYRDDXk9di20M&s=4XnntcfVxo4fQdni-WOsfqIeRA0x8jagW77y_XgPyUQ&e="><font size="2" color="blue" face="Calibri"><u>https://github.com/doonhammer/networking-ovn</u></font></a><font size="2" color="blue" face="Calibri"><u><br>
</u></font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_doonhammer_ovs&d=CwMFoQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=lb7sZo6o-vFSQLHy4n1Z15SjFlZHXBjYRDDXk9di20M&s=vPrUbDdQZ1mIswNv5U8VorIkCU_J5Aze8xGz5DLn_s8&e="><font size="2" color="blue" face="Calibri"><u>https://github.com/doonhammer/ovs</u></font></a><font size="2" face="Calibri"><br>
</font><font size="3" face="Calibri"><br>
I had an original prototype working that used an API I created. Since then, based on feedback from everyone I have been moving the API to the networking-sfc model and then supporting that API in networking-ovn and ovs/ovn. I have created a new driver in networking-sfc
for ovn.</font><font size="2" face="Calibri"><br>
</font><font size="2" face="Calibri"><br>
I am in the process of moving networking-ovn and ovs to support the sfc model. Basically I am intending to pass a deep copy of the port-chain (sample attached, sfc_dict.py) from the ovn driver in networking-sfc to networking-ovn. This , as Ryan pointed out
will minimize the dependancies between networking-sfc and networking-ovn. I have created additional schema for ovs/ovn (attached) that will provide the linkage between networking-ovn and ovs/ovn. I have the schema in ovs/ovn and I am in the process of updating
my code to support it.</font><font size="2" face="Calibri"><br>
</font><font size="2" face="Calibri"><br>
Not sure where you guys want to jump in – but I can help in any way you need.</font><font size="2" face="Calibri"><br>
</font><font size="2" face="Calibri"><br>
Regards</font><font size="2" face="Calibri"><br>
</font><font size="2" face="Calibri"><br>
John</font><font size="2" face="Calibri"><br>
</font><font size="2" face="Calibri"><b><br>
From: </b>Na Zhu <</font><a href="mailto:nazhu@cn.ibm.com"><font size="2" color="blue" face="Calibri"><u>nazhu@cn.ibm.com</u></font></a><font size="2" face="Calibri">><b><br>
Date: </b>Tuesday, May 31, 2016 at 9:02 PM<b><br>
To: </b>John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><b><br>
Cc: </b>Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">>, OpenStack Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>,
"</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
Srilatha Tangirala <</font><a href="mailto:srilatta@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>srilatta@us.ibm.com</u></font></a><font size="2" face="Calibri">><b><br>
Subject: </b>Re: [ovs-discuss] [OVN] [networking-ovn] [networking-sfc] SFC andOVN</font><font size="2" face="Calibri"><br>
</font><font size="2" face="sans-serif"><br>
+ Add Srilatha.</font><font size="2" face="Calibri"><br>
</font><font size="2" face="sans-serif"><br>
<br>
<br>
Regards,<br>
Juno Zhu<br>
IBM China Development Labs (CDL) Cloud IaaS Lab<br>
Email: </font><a href="mailto:nazhu@cn.ibm.com"><font size="2" color="blue" face="sans-serif"><u>nazhu@cn.ibm.com</u></font></a><font size="2" face="sans-serif"><br>
5F, Building 10, 399 Keyuan Road, Zhangjiang Hi-Tech Park, Pudong New District, Shanghai, China (201203)</font><font size="2" face="Calibri"><br>
<br>
</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
<br>
From: </font><font size="1" face="sans-serif">Na Zhu/China/IBM</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
To: </font><font size="1" face="sans-serif">John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="1" color="blue" face="sans-serif"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Cc: </font><font size="1" face="sans-serif">Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="1" color="blue" face="sans-serif"><u>rmoats@us.ibm.com</u></font></a><font size="1" face="sans-serif">>, OpenStack Development Mailing List
<</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="1" color="blue" face="sans-serif"><u>openstack-dev@lists.openstack.org</u></font></a><font size="1" face="sans-serif">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss@openvswitch.org</u></font></a><font size="1" face="sans-serif">"
<</font><a href="mailto:discuss@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss@openvswitch.org</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Date: </font><font size="1" face="sans-serif">2016/06/01 12:01</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Subject: </font><font size="1" face="sans-serif">Re: [ovs-discuss] [OVN] [networking-ovn] [networking-sfc] SFC and OVN</font><font size="2" face="Calibri"><br>
</font>
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<br>
John,<br>
<br>
Thanks.<br>
<br>
Me and Srilatha (</font><a href="mailto:srilatta@us.ibm.com"><font size="2" color="blue" face="sans-serif"><u>srilatta@us.ibm.com</u></font></a><font size="2" face="sans-serif">) want to working together with you, I know you already did some development works.<br>
Can you tell me what you have done and put the latest code in your private repo?<br>
Can we work out a plan and the remaining work?<br>
<br>
<br>
<br>
<br>
Regards,<br>
Juno Zhu<br>
IBM China Development Labs (CDL) Cloud IaaS Lab<br>
Email: </font><a href="mailto:nazhu@cn.ibm.com"><font size="2" color="blue" face="sans-serif"><u>nazhu@cn.ibm.com</u></font></a><font size="2" face="sans-serif"><br>
5F, Building 10, 399 Keyuan Road, Zhangjiang Hi-Tech Park, Pudong New District, Shanghai, China (201203)</font><font size="2" face="Calibri"><br>
<br>
<br>
</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
<br>
From: </font><font size="1" face="sans-serif">John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="1" color="blue" face="sans-serif"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
To: </font><font size="1" face="sans-serif">Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="1" color="blue" face="sans-serif"><u>rmoats@us.ibm.com</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Cc: </font><font size="1" face="sans-serif">OpenStack Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="1" color="blue" face="sans-serif"><u>openstack-dev@lists.openstack.org</u></font></a><font size="1" face="sans-serif">>,
"</font><a href="mailto:discuss@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss@openvswitch.org</u></font></a><font size="1" face="sans-serif">" <</font><a href="mailto:discuss@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss@openvswitch.org</u></font></a><font size="1" face="sans-serif">></font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Date: </font><font size="1" face="sans-serif">2016/06/01 08:58</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Subject: </font><font size="1" face="sans-serif">Re: [ovs-discuss] [OVN] [networking-ovn] [networking-sfc] SFC and OVN</font><font size="1" color="#5f5f5f" face="sans-serif"><br>
Sent by: </font><font size="1" face="sans-serif">"discuss" <</font><a href="mailto:discuss-bounces@openvswitch.org"><font size="1" color="blue" face="sans-serif"><u>discuss-bounces@openvswitch.org</u></font></a><font size="1" face="sans-serif">></font><font size="2" face="Calibri"><br>
</font>
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<font size="2" face="Calibri"><br>
<br>
<br>
Ryan,<br>
<br>
More help is always great :-). As far as who to collaborate, what ever Is easiest for everyone – I am pretty flexible.<br>
<br>
Regards<br>
<br>
John<b><br>
<br>
From: </b>Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">><b><br>
Date: </b>Tuesday, May 31, 2016 at 1:59 PM<b><br>
To: </b>John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><b><br>
Cc: </b>Ben Pfaff <</font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">"
<</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
OpenStack Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Russell Bryant <</font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri">><b><br>
Subject: </b>Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN</font><font size="2" face="Calibri"></font>
<p><font size="2" face="Calibri">John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">> wrote on 05/31/2016 03:21:30 PM:<br>
<br>
> From: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> To: Ryan Moats/Omaha/IBM@IBMUS<br>
> Cc: Ben Pfaff <</font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">"
<br>
> <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
<br>
> "OpenStack Development Mailing List" <openstack-<br>
> </font><a href="mailto:dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Russell Bryant <</font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri">><br>
> Date: 05/31/2016 03:22 PM<br>
> Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> <br>
> Ryan,<br>
> <br>
> Let me add the tables to OVN for SFC. That will give us a working <br>
> system to prototype the flow classifier approach on. Hopefully I can<br>
> get something done by end of week.<br>
> <br>
> Regards<br>
> <br>
> John<br>
<br>
I've got some internal folks that are willing to help with writing code (as<br>
I will be once I clear my current firefights) so the question of how to<br>
collaborate with code now arises...<br>
<br>
Are you comfortable with putting the changes on r.o.o as WiP and patchworks<br>
as RFC and work through the review process or would you rather work via<br>
forks and pull requests in github?<br>
<br>
Ryan<br>
<br>
> From: Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">><br>
> Date: Tuesday, May 31, 2016 at 10:17 AM<br>
> To: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> Cc: Ben Pfaff <</font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">"
<<br>
> </font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
OpenStack<br>
> Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Russell Bryant <<br>
> </font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri">><br>
> Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> <br>
> John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">> wrote on 05/26/2016
<br>
> 11:08:43 AM:<br>
> <br>
> > From: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > To: Ryan Moats/Omaha/IBM@IBMUS<br>
> > Cc: Ben Pfaff <</font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">"
<br>
> > <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
<br>
> > "OpenStack Development Mailing List" <openstack-<br>
> > </font><a href="mailto:dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Russell Bryant <</font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri">><br>
> > Date: 05/26/2016 11:09 AM<br>
> > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > <br>
> > Ryan,<br>
> > <br>
> > My (incomplete) throughts about the flow-classifier are:<br>
> > <br>
> > 1) ACL’s are more about denying access, while the flow classifier <br>
> > is more about steering selected traffic to a path, so we would need <br>
> > to deny-all except allowed flows.<br>
> > 2) The networking-sfc team has done a nice job with the drivers so <br>
> > ovn has its own flow-classifier driver which allows us to align the <br>
> > flow-classifier with the matches supported in ovs/ovn, which could <br>
> > be an advantage.<br>
> <br>
> The ACL table has a very simple flow-classifier structure and I'd<br>
> like to see if that can be re-used for the purpose of the SFC classifier<br>
> (read that I feel the Logical_Flow_Classifier table is too complex).<br>
> My initial thoughts were to look at extending the action column and<br>
> using the external-ids field to differentiate between legacy ACLs and<br>
> those that are used to intercept traffic and route it to an SFC.<br>
> <br>
> > <br>
> > What were your thoughts on the schema it adds a lot of tables and a <br>
> > lot of commands – cannot think of anyway around it<br>
> <br>
> In this case, I think that the other tables are reasonable and I'm <br>
> uncomfortable trying to stretch the existing tables to cover that<br>
> information...<br>
> <br>
> Ryan<br>
> <br>
> > <br>
> > Regards<br>
> > <br>
> > John<br>
> > <br>
> > From: Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">><br>
> > Date: Wednesday, May 25, 2016 at 9:12 PM<br>
> > To: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > Cc: Ben Pfaff <</font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">"
<<br>
> > </font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
OpenStack<br>
> > Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>,
<br>
> Russell Bryant <<br>
> > </font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri">><br>
> > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > <br>
> > John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">> wrote on 05/25/2016
<br>
> > 07:27:46 PM:<br>
> > <br>
> > > From: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > > To: Ryan Moats/Omaha/IBM@IBMUS<br>
> > > Cc: "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
"OpenStack <br>
> > > Development Mailing List" <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Ben
<br>
> > > Pfaff <</font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
Russell Bryant<br>
> > > <</font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri">><br>
> > > Date: 05/25/2016 07:28 PM<br>
> > > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > > <br>
> > > Ryan,<br>
> > > <br>
> > > Ok – I will let the experts weigh in on load balancing.<br>
> > > <br>
> > > In the meantime I have attached a couple of files to show where I am<br>
> > > going. The first is sfc_dict.py and is a representation of the dict <br>
> > > I am passing from SFC to OVN. This will then translate to the <br>
> > > attached ovn-nb schema file.<br>
> > > <br>
> > > One of my concerns is that SFC almost doubles the size of the ovn-nb<br>
> > > schema but I could not think of any other way of doing it.<br>
> > > <br>
> > > Thoughts?<br>
> > > <br>
> > > John<br>
> > <br>
> > The dictionary looks fine for a starting point, and the more I look<br>
> > at the classifier, the more I wonder if we can't do something with<br>
> > the current ACL table to avoid duplication in the NB database<br>
> > definition...<br>
> > <br>
> > Ryan<br>
> > <br>
> > > From: Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">><br>
> > > Date: Wednesday, May 25, 2016 at 7:27 AM<br>
> > > To: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > > Cc: "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
OpenStack <br>
> > > Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">>, Ben Pfaff <<br>
> > > </font><a href="mailto:blp@ovn.org"><font size="2" color="blue" face="Calibri"><u>blp@ovn.org</u></font></a><font size="2" face="Calibri">>, Justin Pettit <</font><a href="mailto:jpettit@ovn.org"><font size="2" color="blue" face="Calibri"><u>jpettit@ovn.org</u></font></a><font size="2" face="Calibri">>,
Russell Bryant <<br>
> > </font><a href="mailto:russell@ovn.org"><font size="2" color="blue" face="Calibri"><u>russell@ovn.org</u></font></a><font size="2" face="Calibri"><br>
> > > ><br>
> > > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > > <br>
> > > John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">> wrote on 05/24/2016
<br>
> > > 06:33:05 PM:<br>
> > > <br>
> > > > From: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > > > To: Ryan Moats/Omaha/IBM@IBMUS<br>
> > > > Cc: "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
"OpenStack <br>
> > > > Development Mailing List" <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">><br>
> > > > Date: 05/24/2016 06:33 PM<br>
> > > > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > > > <br>
> > > > Ryan,<br>
> > > > <br>
> > > > Thanks for getting back to me and pointing me in a more OVS like <br>
> > > > direction. What you say makes sense, let me hack something together.<br>
> > > > I have been a little distracted getting some use cases together. The<br>
> > > > other area is how to better map the flow-classifier I have been <br>
> > > > thinking about it a little, but I will leave it till after we get <br>
> > > > the chains done.<br>
> > > > <br>
> > > > Your load-balancing comment was very interesting – I saw some <br>
> > > > patches for load-balancing a few months ago but nothing since. It <br>
> > > > would be great if we could align with load-balancing as that would <br>
> > > > make a really powerful solution.<br>
> > > > <br>
> > > > Regards<br>
> > > > <br>
> > > > John<br>
> > > <br>
> > > John-<br>
> > > <br>
> > > For the load balancing, I believe that you'll want to look at<br>
> > > openvswitch's select group, as that should let you set up multiple<br>
> > > buckets for each egress port in the port pairs that make up a port<br>
> > > group.<br>
> > > <br>
> > > As I understand it, Table 0 identifies the logical port and logical<br>
> > > flow. I'm worried that this means we'll end up with separate bucket<br>
> > > rules for each ingress port of the port pairs that make up a port<br>
> > > group, leading to a cardinality product in the number of rules.<br>
> > > I'm trying to think of a way where Table 0 could identify the packet<br>
> > > as being part of a particular port group, and then I'd only need one<br>
> > > set of bucket rules to figure out the egress side. However, the<br>
> > > amount of free metadata space is limited and so before we go down<br>
> > > this path, I'm going to pull Justin, Ben and Russell in to see if<br>
> > > they buy into this idea or if they can think of an alternative.<br>
> > > <br>
> > > Ryan<br>
> > > <br>
> > > > <br>
> > > > From: Ryan Moats <</font><a href="mailto:rmoats@us.ibm.com"><font size="2" color="blue" face="Calibri"><u>rmoats@us.ibm.com</u></font></a><font size="2" face="Calibri">><br>
> > > > Date: Monday, May 23, 2016 at 9:06 PM<br>
> > > > To: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > > > Cc: "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
OpenStack <br>
> > > > Development Mailing List <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">><br>
> > > > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > > > <br>
> > > > John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">> wrote on 05/18/2016
<br>
> > > > 03:55:14 PM:<br>
> > > > <br>
> > > > > From: John McDowall <</font><a href="mailto:jmcdowall@paloaltonetworks.com"><font size="2" color="blue" face="Calibri"><u>jmcdowall@paloaltonetworks.com</u></font></a><font size="2" face="Calibri">><br>
> > > > > To: Ryan Moats/Omaha/IBM@IBMUS<br>
> > > > > Cc: "</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">" <</font><a href="mailto:discuss@openvswitch.org"><font size="2" color="blue" face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size="2" face="Calibri">>,
"OpenStack <br>
> > > > > Development Mailing List" <</font><a href="mailto:openstack-dev@lists.openstack.org"><font size="2" color="blue" face="Calibri"><u>openstack-dev@lists.openstack.org</u></font></a><font size="2" face="Calibri">><br>
> > > > > Date: 05/18/2016 03:55 PM<br>
> > > > > Subject: Re: [OVN] [networking-ovn] [networking-sfc] SFC and OVN<br>
> > > > > <br>
> > > > > Ryan,<br>
> > > > > <br>
> > > > > OK all three repos and now aligned with their masters. I have done <br>
> > > > > some simple level system tests and I can steer traffic to a single <br>
> > > > > VNF. Note: some additional changes to networking-sfc to catch-up <br>
> > > > > with their changes.<br>
> > > > > <br>
> > > > > </font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_doonhammer_networking-2Dsfc&d=CwMGaQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=mLaxHI6XiGcUfgsL5Egu3aC0QR-xI7L_QuffCoTwtz8&s=8QaDNJ9iUOwW-TDDioAlHYpO-WM2a7-bMuP7qJTezaw&e="><font size="2" color="blue" face="Calibri"><u>https://github.com/doonhammer/networking-sfc</u></font></a><font size="2" face="Calibri"><br>
> > > > > </font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_doonhammer_networking-2Dovn&d=CwMGaQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=mLaxHI6XiGcUfgsL5Egu3aC0QR-xI7L_QuffCoTwtz8&s=ITWWb5V3L60kdiwK5QIbo-YEcIvGkdKDW4xl6uNj_3g&e="><font size="2" color="blue" face="Calibri"><u>https://github.com/doonhammer/networking-ovn</u></font></a><font size="2" face="Calibri"><br>
> > > > > </font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_doonhammer_ovs&d=CwMGaQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=mLaxHI6XiGcUfgsL5Egu3aC0QR-xI7L_QuffCoTwtz8&s=bBOpCVRnF1ntciYqKMTLupX4eagWaWVXoKRWAwAio2I&e="><font size="2" color="blue" face="Calibri"><u>https://github.com/doonhammer/ovs</u></font></a><font size="2" face="Calibri"><br>
> > > > > <br>
> > > > > The next tasks I see are:<br>
> > > > > <br>
> > > > > 1. Decouple networking-sfc and networking-ovn. I am thinking that I <br>
> > > > > will pass a nested port-chain dictionary holding port-pairs/port-<br>
> > > > > pair-groups/flow-classifiers from networking-sfc to networking-ovn.<br>
> > > > > 2. Align the interface between networking-ovn and ovs/ovn to match <br>
> > > > > the nested dictionary in 1.<br>
> > > > > 3. Modify the ovn-nb schema and ovn-northd.c to march the port-<br>
> > > chain model.<br>
> > > > > 4. Add ability to support chain of port-pairs<br>
> > > > > 5. Think about flow-classifiers and how best to map them, today I <br>
> > > > > just map the logical-port and ignore everything else.<br>
> > > > > <br>
> > > > > Any other suggestions/feedback?<br>
> > > > > <br>
> > > > > Regards<br>
> > > > > <br>
> > > > > John<br>
> > > > <br>
> > > > John-<br>
> > > > <br>
> > > > (Sorry for sending this twice, but I forgot that text/html is not liked<br>
> > > > by the mailing lists ...)<br>
> > > > <br>
> > > > My apologies for not answering this sooner - I was giving a two day<br>
> > > > training on Tues/Wed last week and came back to my son graduating<br>
> > > > from HS the next day, so things have been a bit of a whirlwind here.<br>
> > > > <br>
> > > > Looking at the github repos, I like the idea of passing a dictionary<br>
> > > > from networking-sfc to networking-ovn. The flow classifiers should<br>
> > > > be relatively straightforward to map to ovs match rules (famous last<br>
> > > > words)...<br>
> > > > <br>
> > > > I've probably missed an orbit here, but in the ovn-northd <br>
> implementation,<br>
> > > > I was expecting to find service chains in the egress and <br>
> router pipelines<br>
> > > > in addition to the ingress pipeline (see below for why I thinka service<br>
> > > > chain stage in the egress pipeline makes sense ...)<br>
> > > > <br>
> > > > Also, in the ovn-northd implementation, I'm a little disturbedto see the<br>
> > > > ingress side of the service chain sending packets to output ports - I<br>
> > > > think that a more scalable (and more "ovs-like" approach) would be to<br>
> > > > match the egress side of a port pair in the chaining stage of the<br>
> > > > ingress pipeline, with an action that set the input port register.<br>
> > > > Then the egress pipeline would have a chaining stage where the output<br>
> > > > port register would be set based on the ingress port of the next port<br>
> > > > pair in the chain and the packet being punted to the proper output port<br>
> > > > in the last table. That should automagically build your function chain<br>
> > > > and provide the basis for bucketizing multiple ingress ports for the<br>
> > > > next port group to support hash based load balancing.<br>
> > > > <br>
> > > > Does that make sense?<br>
> > > > <br>
> > > > Ryan[attachment "ovn-nb.ovsschema.sfc" deleted by Ryan Moats/<br>
> > > Omaha/IBM] [attachment "sfc_dict.py" deleted by Ryan Moats/Omaha/IBM] _______________________________________________<br>
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<p><font size="1" face="sans-serif">[attachment "ovn-nb.ovsschema.sfc" deleted by Na Zhu/China/IBM] [attachment "sfc_dict.py" deleted by Na Zhu/China/IBM]
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