<font size=2 face="sans-serif">Hi John,</font><br><br><font size=2 face="sans-serif">OK, please keep me posted once you done,
thanks very much.</font><br><font size=2 face="sans-serif"><br><br><br><br>Regards,<br>Juno Zhu<br>IBM China Development Labs (CDL) Cloud IaaS Lab<br>Email: nazhu@cn.ibm.com<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 <jmcdowall@paloaltonetworks.com></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">"discuss@openvswitch.org"
<discuss@openvswitch.org>, "OpenStack Development Mailing List"
<openstack-dev@lists.openstack.org>, Ryan Moats <rmoats@us.ibm.com>,
Srilatha Tangirala <srilatta@us.ibm.com></font><br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">2016/06/03 13:15</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><hr noshade><br><br><br><font size=3>Juno </font><br><br><font size=3>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.</font><br><br><font size=3>Hopefully I will have it done tomorrow or over the weekend
- let's touch base Monday or Sunday night.</font><br><br><font size=3>Regards </font><br><br><font size=3>John</font><br><font size=3><br>Sent from my iPhone</font><br><font size=3><br>On Jun 2, 2016, at 6:30 PM, Na Zhu <</font><a href=mailto:nazhu@cn.ibm.com><font size=3 color=blue><u>nazhu@cn.ibm.com</u></font></a><font size=3>>
wrote:<br></font><br><font size=2 face="sans-serif">Hi John,</font><font size=3><br></font><font size=2 face="sans-serif"><br>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><font size=3><br></font><font size=2 face="sans-serif"><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=3><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">"</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">>,
"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">>,
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">>,
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">2016/06/03
00:08</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=3><br></font><hr noshade><font size=3><br><br></font><font size=2 face="Calibri"><br>Juno,</font><font size=3><br></font><font size=2 face="Calibri"><br>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.<br>Also, hopefully some of the networking-sfc team will also be able to help
每 I will let them speak for themselves.</font><font size=3><br></font><font size=2 face="Calibri"><br>Regards</font><font size=3><br></font><font size=2 face="Calibri"><br>John</font><font size=3><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>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><font size=3><br></font><font size=2 face="sans-serif"><br>Hi John,<br><br>Thanks your reply.<br><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<br><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></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">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=3><br></font><hr noshade><font size=2 face="Calibri"><br><br><br>Na/Srilatha,<br><br>Great, I am working from three repos:</font><font size=2 color=blue face="Calibri"><u><br></u></font><font size=3 color=blue><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=3 color=blue><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=3 color=blue><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=3 face="Calibri"><br><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><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.<br><br>Not sure where you guys want to jump in 每 but I can help in any way you
need.<br><br>Regards<br><br>John<b><br><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="sans-serif"><br><br>+ Add Srilatha.<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></font><font size=1 color=#5f5f5f face="sans-serif"><br><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=3><br></font><hr noshade><font size=2 face="sans-serif"><br><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></font><font size=1 color=#5f5f5f face="sans-serif"><br><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=3><br></font><hr noshade><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 每 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=3></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 每 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 每 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 每
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>discuss mailing list</font><font size=3 color=blue><u><br></u></font><a href=mailto:discuss@openvswitch.org><font size=2 color=blue face="Calibri"><u>discuss@openvswitch.org</u></font></a><font size=3 color=blue><u><br></u></font><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__openvswitch.org_mailman_listinfo_discuss&d=CwMFoQ&c=V9IgWpI5PvzTw83UyHGVSoW3Uc1MFWe5J8PTfkrzVSo&r=vZ6VUDaavDpfOdPQrz1ED54jEjvAE36A8TVJroVlrOQ&m=VCIo4C63txe7y9jwS2U5ebuYWzlLk4MF1mIa2Hx1A2s&s=9J7cT2z1rc3u2I2LIa-2Hk-qWyVf-Kwd8ge5ywYK-nE&e="><font size=2 color=blue face="Calibri"><u>http://openvswitch.org/mailman/listinfo/discuss</u></font></a><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] </font><p><p><BR>