Elastic Load Balance (ELB) automatically distributes incoming traffic across multiple servers to balance their workload, increasing the service capabilities and fault tolerance of your applications.
The Elastic IP (EIP) service provides independent public IP addresses and bandwidth to the Internet. An EIP can be flexibly associated with or disassociated from an ECS, BMS, virtual IP address, load balancer, or NAT gateway. Various billing modes are provided to meet diversified service requirements.