Dedicated Bandwidth
If an EIP is not added to a shared bandwidth, the EIP uses a dedicated bandwidth no matter how it is billed.
You can modify the dedicated bandwidth as required. The modification is applied immediately.
A dedicated bandwidth can control how much data can be transferred using a single EIP. The EIP can be used by only one cloud resource, such as a NAT gateway, an ECS, or a load balancer. Generally, if all EIPs need to access the Internet simultaneously, dedicated bandwidths are recommended preferentially.