By Andrey Markelov
This advisor teaches you the way and what to review with a view to be most sensible ready for the qualified OpenStack Administrator examination. This fast-growing expertise is making a industry that wishes extra certified IT experts with confirmed talents. This e-book covers a hundred% of the examination necessities for either The OpenStack beginning and the Mirantis OpenStack Certification examination. each one subject matter is taught utilizing sensible workouts and directions for the command line and for the graphical consumer (Horizon). each one bankruptcy is via evaluate questions, entire with solutions. Even upon getting taken and handed your OpenStack examination, this publication will stay an invaluable reference.
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Additional resources for Certified OpenStack Administrator Study Guide
Manage Network Resources Now let’s go through the process of creating all the necessary network resources for connecting an instance to the external world. For that you can use the neutron command and sometimes nova. Both commands have built-in help. Use nova help
This bridge acts as a virtual switch where all virtual network cards from all virtual machines are connected. OVS Neutron agent automatically creates the integration bridge. • External bridge (br-ex): This bridge is for interconnection with external networks. In our example, physical interface eth1 is connected to this bridge. • Tunnel bridge (br-tun): This bridge is a virtual switch like br-int. It connects the GRE and VXLAN tunnel endpoints. 30. In our example, a GRE tunnel was used. OVSHybridIptablesFirewallDriver See the Tip in Chapter 4 for an explanation of how RegEx can be used in the grep command.
The next step is to create a subnet for this network. 2 | | host_routes | | | id | 40d6da8b-b7eb-437e-8e84-ef018b773e4a | | ip_version | 4 | | ipv6_address_mode | | | ipv6_ra_mode | | | name | ext-subnet | | network_id | 4716a0c7-70c9-44f1-a276-6e159400ba78 | | subnetpool_id | | | tenant_id | ae8d3e3f5cff4a959f1ae1cfe9e80d6d | | updated_at | 2016-07-17T16:43:48 | +-------------------+----------------------------------------------+ If you use Horizon for net and subnet creation, go to Project ➤ Network ➤ Networks and click the “Create Network” button.