Anycast EIP (Anycast Elastic IP Address) improves public network availability for distributed services by leveraging Alibaba Cloud's high-quality BGP bandwidth and global transmission network to route user traffic to the nearest access point.
Overview
Anycast EIP is a public IP address resource that you can purchase and hold independently. Each instance is assigned a single public IP address that can be announced from any location in the access area, independent of region boundaries. When you bind this IP to a backend resource, traffic enters the Alibaba Cloud network at the nearest access point. The system then selects the optimal route and automatically schedules network resources to deliver requests to your backend resources.
Anycast EIP is designed for inbound services only. Outbound connections to third-party services that use anycast or similar technologies may cause connectivity issues.
Components
Anycast EIP consists of the following components:
|
Component |
Description |
|
Areas |
The area where public network access originates. Anycast EIP covers regions outside the Chinese mainland. |
|
IP Address |
The public IP address that users in the access area use to connect to your backend resources. When users connect to this IP address, traffic enters the Alibaba Cloud network through the nearest access point. |
|
Access point |
The nearest network entry where user traffic enters the Alibaba Cloud network, corresponding to a Point of Presence (PoP) or region. See the Anycast EIP access point locations section below. |
|
Origin server region |
The region where your backend cloud resources are deployed.
|
Anycast EIP access point locations
Anycast EIP provides access points in the following locations.
|
Area |
Region |
|
Asia Pacific |
China (Hong Kong), Singapore, Thailand (Bangkok), Philippines (Manila), Vietnam (Ho Chi Minh), South Korea (Seoul), Japan (Tokyo), Malaysia (Kuala Lumpur), Indonesia (Jakarta) |
|
North America |
US (Silicon Valley), US (Virginia), Canada (Toronto), Canada (Vancouver) |
|
South America |
Brazil (São Paulo) |
|
Europe |
UK (London), Germany (Frankfurt), Spain (Madrid), France (Paris) |
-
Anycast EIP is designed to improve public network availability for regions outside the Chinese mainland and does not currently support access points in the Chinese mainland.
-
The access points listed are for reference only and are subject to change without notice, including due to device maintenance, device failures, and the addition or removal of access points.
Benefits
-
Easy to use
Anycast EIP works like a standard EIP. Bind it to a load balancer such as CLB and it serves traffic with no extra configuration.
-
High security
Anycast EIP integrates with cloud-native security services, protecting your public-facing applications from attacks and securing access to your backend resources.
-
High stability and reliability
Services are accessible from multiple PoPs simultaneously. If a carrier line fails, traffic automatically reroutes to another access point.
-
Low jitter
Client requests enter the Alibaba Cloud network at the nearest PoP and travel over Alibaba Cloud's high-quality BGP bandwidth and global transmission network to your backend servers, reducing jitter.