Hello all, I'm trying to test the function of GRE solution with XenServer 6.1 and CS 4.1.1 for Guest Network, but it still needs the VLAN range to deploy the Virtual Machine. Did anyone use GRE isolation method in your environment without VLAN?
The following are my testing steps: Environment: - CloudStack 4.1.1 - 1 * XenServer 6.1 (with default Open vSwitch) # Use two nics, tag as cloud-guest, cloud-private Steps: 1. Deploy the cloud infrastructure of the Zone with Network Mode: Advance Mode 2. Setup Network: - Physical Network 1 (isolation: VLAN) use cloud-private (public, management Network) - Physical Network 2 (isolation: GRE) use cloud-guest (guest Network) 3. Setup Guest Traffic - VLAN Range --> keep it empty and click Next 4. Make sure SSVM/CPVM start correctly 5. Deploy the Virtual Machine and occurs "com.cloud.exception.InsufficientVirtualNetworkCapcityException: Unable to allocate vnet as a part of network Ntwk[204|Guest|8]" if update the VLAN range then can deploy the VMs successfully, but each VM will allocate one NIC with VLAN tagged interface. In my understanding, it shouldn't use VLAN interface and will use GRE tunnel to create the tunnel or handle the traffic by Open vSwitch inside. Here is the reference. http://buildacloud.org/blog/221-sdn-in-cloudstack.html Any suggestion and advice are welcome :) acke.
