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OpenStack Networking Cookbook by Chandan Dutta Chowdhury, Sriram Subramanian

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Starting the DHCP server on a specific network node

OpenStack allows multiple Network nodes in a setup. By default, only one DHCP agent (or server) is associated per Network. In case there are multiple Network nodes, the Neutron server automatically schedules a DHCP agent for each Network. However, there could be situations when a particular Network requires a DHCP agent on a specific Network node. For example, for a Network with critical VMs, the user may request for the DHCP server to run on a more responsive Network node.

Getting ready

We will use the Horizon dashboard to show you how to ensure that the DHCP server for a given Network is started on a specific network node. This recipe requires a setup with two Network nodes as shown in the beginning ...

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