Vivek,<br>Me & my colleagues wrote a couple of articles on your issues on Mirantis blog. Check them out - hope they provide some guidance:<br><br><a href="http://www.mirantis.com/blog/117072/">http://www.mirantis.com/blog/117072/</a> - deployment topology<br>
<a href="http://www.mirantis.com/blog/openstack-monitoring/">http://www.mirantis.com/blog/openstack-monitoring/</a> - monitoring<br><a href="http://www.mirantis.com/blog/software-high-availability-load-balancing-openstack-cloud-api-servic/">http://www.mirantis.com/blog/software-high-availability-load-balancing-openstack-cloud-api-servic/</a><br>
 - HA for openstack API services<br><a href="http://www.mirantis.com/blog/intro-to-openstack-in-production/">http://www.mirantis.com/blog/intro-to-openstack-in-production/</a> - general HA concepts in openstack<br><a href="http://www.mirantis.com/blog/vlanmanager-network-flow-analysis/">http://www.mirantis.com/blog/vlanmanager-network-flow-analysis/</a> - how network traffic flows with VlanManager<br>
<a href="http://www.mirantis.com/blog/openstack-networking-vlanmanager/">http://www.mirantis.com/blog/openstack-networking-vlanmanager/</a> - vlan manager<br><a href="http://www.mirantis.com/blog/openstack-networking-single-host-flatdhcpmanager/">http://www.mirantis.com/blog/openstack-networking-single-host-flatdhcpmanager/</a> - flatdhcp<br>
<a href="http://www.mirantis.com/blog/openstack-networking-flatmanager-and-flatdhcpmanager/">http://www.mirantis.com/blog/openstack-networking-flatmanager-and-flatdhcpmanager/</a> - another one on flat managers<br><br><a href="http://www.mirantis.com/blog/load-balancing-for-openstack-proposing-lbaas/">http://www.mirantis.com/blog/load-balancing-for-openstack-proposing-lbaas/</a> - Mirantis' opensourced version of a loadbalancer for openstack.<br>
<br>Hope this helps,<br>-Piotr<br><br><br><div class="gmail_quote">On 10 September 2012 20:13, Vivek Singh Raghuwanshi <span dir="ltr"><<a href="mailto:vivekraghuwanshi@gmail.com" target="_blank">vivekraghuwanshi@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi All,<br><br>i am implementing openstack in a production and wants to know best network technique .<br><br>by which i can achive configuration of  vlans for tenants and also need some load balancing and high availability stuffs.<br>

<br>and using virtual IP in instances which are auto faiover.<br><br>is openvswitch+quantum is good i am using Ubuntu12.04 and Essex for 10 servers <br clear="all"><span class="HOEnZb"><font color="#888888"><br>-- <br>ViVek Raghuwanshi<br>
Mobile -<a href="tel:%2B91-09595950504" value="+919595950504" target="_blank">+91-09595950504</a><br>
            <br>Skype - vivek_raghuwanshi<br><br><br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>checkout my blog on linux clusters:<br>-- <a href="http://linuxdatacenter.blogspot.com">linuxdatacenter.blogspot.com</a> --<br>