<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span><div style="font-size: 12pt; "><span>Hi,</span></div><div style="font-size: 12pt; "><span><br></span></div><div style="font-size: 12pt; "><span>I'll give this a shot:</span></div><div style="font-size: 12pt; "><span><br></span></div><div style="font-size: medium; "><span>These are called by Nova when it plugs and unplugs its network interfaces. Nova drivers are an abstraction layer that allow it to work with different combinations of machine virtualization and switching technologies without knowing the details. Nova makes generic plug and unplug calls and the drivers implement them in a technology specific way. </span><span style="font-size: 15px; line-height: 17px; ">LibvirtOpenVswitchDriver</span> is used by nova-compute for plugging and unplugging LibVirt VMs to Open vSwitch. <span style="font-size:
15px; line-height: 17px; ">LinuxOVSInterfaceDriver</span> is used by nova-network for plugging and unplugging the Linux gateway device to Open vSwitch.</div><div style="font-size: 12pt; "><br></div><div style="font-size: 12pt; ">Darragh.</div></span></div><div><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "> <div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Trinath Somanchi <trinath.somanchi@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> openstack@lists.launchpad.net; "<netstack@lists.launchpad.net>" <netstack@lists.launchpad.net> <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, 7
August 2012, 12:46<br> <b><span style="font-weight: bold;">Subject:</span></b> [Netstack] Nova Compute and Drivers<br> </font> </div> <br><div id="yiv1413973431">Hi-<br><br>Can any one guide me on the understanding the role of "<span style="font-size:11.0pt;line-height:115%;">LinuxOVSInterfaceDriver" and "</span><span style="font-size:11.0pt;line-height:115%;"><span> </span>LibvirtOpenVswitchDriver " in bringing up the VMs</span>?<br>
<br>Thanking you all<br>
<br clear="all"><br>-- <br>Regards,<br>----------------------------------------------<br>Trinath Somanchi,<div><a rel="nofollow" href="">+91 9866 235 130</a></div><br>
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