<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">This was a compromise we made toward the end of Kilo. The subnetpools resource was implemented as a core resource, but for purposes of Horizon interaction and
a lack of another method for evolving the Neutron API we deliberately added a shim extension. I believe this was done with a couple other “extensions” like VLAN transparent networks. I don’t think we want to remove the shim extension.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-Ryan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> gong_ys2004 [mailto:gong_ys2004@aliyun.com]
<br>
<b>Sent:</b> Monday, August 31, 2015 9:45 PM<br>
<b>To:</b> openstack-dev<br>
<b>Subject:</b> [openstack-dev] [neutron] subnetallocation is in core resource, while there is a extension for it?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p style="margin:0in;margin-bottom:.0001pt"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:black">Hi, neutron guys,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:black">look at
<a href="https://github.com/openstack/neutron/blob/master/neutron/extensions/subnetallocation.py">
https://github.com/openstack/neutron/blob/master/neutron/extensions/subnetallocation.py</a>,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:black">which defines an extension </span><span style="font-size:9.0pt;font-family:Consolas;color:red;background:white">Subnetallocation</span><span style="font-size:9.0pt;font-family:Consolas;color:black;background:white">
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white">but defines no extension resource. Actually, it is implemented</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white">in core resource.</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white">So I think we should remove this extension.</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white">I filed a bug for it:</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white"><a href="https://bugs.launchpad.net/neutron/+bug/1490815">https://bugs.launchpad.net/neutron/+bug/1490815</a></span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white">Regards,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;background:white">yong sheng gong</span><o:p></o:p></p>
</div>
</div>
</body>
</html>