Floating IPs
Floating IP is a dynamic address that can be assigned to multiple servers and is used for specific network scenarios, such as high-availability clusters and load balancing.
A floating IP is a type of public, static IP address that can be assigned to instances within a private subnet. It allows you to quickly provide access from an external network to an instance that does not have a public network interface. A floating IP can be dynamically routed to any server in the network, and the floating IP Anchor IP relation can be updated in real-time so you can direct traffic incoming on the floating IP to the server of your choice. Floating IPs are commonly used to implement failover in a high availability cluster, implement zero downtime continuous deployment, keep the same IP address on a server even when it it being relocated in the data center, and serve as a flexible load balancing address.
Static IP:- A static IP is a fixed, unchanging IP address that is assigned to a device or server. It is typically used for web servers, mail servers, and other services that require a consistent and easily accessible address for users to connect to. Static IPs are usually assigned by the Internet service Providers (ISP) or the network administrator and are not easily changeable.
Advantage
Flexibility:- Floating IPs are considerably flexible and suitable for use in failover and switchover environments, allowing for seamless transition between servers on instances
Control and Accessibility:- Floating IPs allow for controlled access, and in the event of any issues with the Internet Service Provider(ISP), users can access the IP pool through other servers.
Dynamic Routing: - They can be dynamically routed to any server in the network, enabling the redirection of traffic to different servers as needed.
Failover and load balancing: - Floating IPs can be used in failover and load balancing scenarios, making them a valuable tool for maintaining service availability and performance.
Improved user experience: Floating IPs can make services more accessible to users, as they are not tied to specific server IP addresses.
These advantages make floating IPs a valuable tool for maintaining high availability and reducing downtime in production environments.
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