<div dir="ltr"><div><div><div><div><span style="color:rgb(0,0,0)">Hi all,<br><br></span></div><div><span style="color:rgb(0,0,0)">Trying to deploy a high availability Openstack cluster and having trouble getting multiple networking nodes to work with tunneling. Could somebody help me figure this out?<br></span></div><div><span style="color:rgb(0,0,0)"><br>I'm using Icehouse, Neutron with the ML2 plugin, openvswitch as it's mechanism driver and VXLAN tunnels for the tenant routed networks. Everything works fine with just one networking node, but for scalability and availability I need multiple networking nodes.Unfortunately that doesn't seem to work as expected. Here's what I've noticed:<br></span><ol><li><span style="color:rgb(0,0,0)">The networking node hosting the tenant virtual router is the only networking node to create any VXLAN tunnel endpoints, but only to the compute nodes hosting an instance of that tenant.</span></li><li><span style="color:rgb(0,0,0)">No VXLAN tunnel endpoints to any of the other networking or compute nodes are created on networking nodes. This means Neutron DHCP and load balancing agents that get scheduled to other networking nodes are down because they can't be accessed from the router/floating IP's nor from the tenant's instances.</span></li><li><span style="color:rgb(0,0,0)">Compute nodes do have VXLAN endpoints defined for all the networking nodes.</span></li><li><span style="color:rgb(0,0,0)">Compute nodes with tenant
instances also have VXLAN endpoints defined for the other compute nodes, but nodes without tenant
instances don't have endpoints defined for the other compute nodes.</span></li></ol></div></div></div><div><span style="color:rgb(0,0,0)"><br></span></div><div><span style="color:rgb(0,0,0)">The main problem for me is that agents like DHCP and LBaaS get distributed between networking nodes, and without tunnel endpoints they don't actually work.So how do I get tunnels between the nodes working properly? Is this a settings problem? Or is it simply impossible to combine multiple active L3 agents, tenant routed networks with DHCP, tunneling and LBaaS in Icehouse?<br><br></span></div><div><span style="color:rgb(0,0,0)">Thanks a lot for the help!<br><br>Tom<br></span></div></div></div>