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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks Santhosh for the great work about Quantum_Framework.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I looked at the code and have some questions.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Extension standard. <o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>In the netstack meeting, we agreed to adopt Openstack's extension standard. Jorge is still working on the standard draft. I'm not sure whether this work followed old extension mechanism or Jorge's presentation on the summit. One extension could be added is "attribute extension" to existing resources. In our use case, we need to create Portprofile and later refer it as a port's attribute. With current framework, we can create "Portprofile" as a resource through "ResourceExtension". But how does the plug-in know about this extension and refer the portprofile when the port is created?<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText> 2. Relationship between extension and plug-in.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>Extension seems be separated from the plug-in. If we want to extend existing plug-in, can we do it through extensions' api? How is extension made aware of plug-in’s existence? And how does the plug-in know the new resources created by extensions? <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Best,<o:p></o:p></p><p class=MsoPlainText>Ying<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>