August 2018
Beginner
462 pages
12h 36m
English
Content preview from Learning OpenStack Networking - Third Edition
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Virtual IP
A VRRP virtual router has a virtual IP address that can serve as the default gateway for hosts in the network. The master router owns the IP address until a failover event occurs, at which time a backup router becomes the new master and takes over the IP and associated routing duties.
Due to limitations with keepalived, Neutron HA routers do not completely follow the VRRP networking conventions described up to this point. Neutron assigns a single virtual IP to an HA router, and that virtual IP is only configured on the master router in the group at any given time. While the address does fail over between routers during a failover event, it is not actually used as a gateway address for any network. As HA routers are created, a new ...
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