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Mastering OpenStack - Second Edition by Chandan Dutta Chowdhury, Omar Khedher

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VRRP in Neutron

We have already briefly introduced earlier in this chapter the concept of the VRRP protocol. The OpenStack community has created from this protocol a new method to attain a high available routing setup for Neutron:

By using the same approach introduced earlier in this chapter, Neutron achieves a failed over router setup across several neutron nodes using VRRP as well as Keepalived for high availability. As shown in the previous diagram, routers can be seen in the form of groups, where each group presents an active router that is currently forwarding traffic to instances. Additionally, the load of instances traffic is spread ...

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