High-Availability Virtual IP Address (Ha-VIP) is a private network IP resource that can be created and released independently. Ha-VIP can be used in conjunction with high-availability software (such as Keepalive) to build high-availability active and standby services and improve business availability.
HAVIPs can be associated with or disassociated from ECS instances or ENIs through ARP announcements.
You can associate each HAVIP with at most 10 ECS instances or 10 ENIs.
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Directly associate an HAVIP with ECS instances
Each HAVIP can be associated with two ECS instances. Each ECS instance serves as the primary instance, and the secondary instance for providing services. If the primary ECS is down, the secondary ECS takes over to provide services.
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Associate an HAVIP with the primary elastic network interfaces (ENIs) or secondary ENIs of ECS instances
Each HAVIP can be associated with the primary ENIs or secondary ENIs of two ECS instances. If one of the ENIs is down, the secondary ENI can take over to provide services.
What is a High-Availability Virtual IP (HAVIP)?
HAVIP is a virtual IP that ensures high availability by automatically failing over to another server if the primary one fails.
How does HAVIP work in a VPC?
HAVIP is deployed in your VPC to ensure your applications remain available by rerouting traffic to a backup resource.
Can I associate HAVIP with my ECS instances?
Yes, you can associate HAVIP with ECS instances or Server Load Balancers to maintain service continuity.
How is HAVIP billed?
HAVIP is free of charge service