August 2018
Beginner
462 pages
12h 36m
English
Content preview from Learning OpenStack Networking - Third Edition
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Using a dedicated network node
A network node is dedicated to handling most or all the OpenStack networking services, including the L3 agent, DHCP agent, metadata agent, and more. The use of a dedicated network node provides additional security and resilience, as the controller node will be at less risk of network and resource saturation. Some Neutron services, such as the L3 and DHCP agents and the Neutron API service, can be scaled out across multiple nodes for redundancy and increased performance, especially when distributed virtual routers are used.
The following diagram demonstrates a network node hosting all OpenStack networking services, including the Neutron L3, DHCP, metadata, and LBaaS agents. The Neutron API service, however, remains ...
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