This topic describes the regions and zones (Availability Zones, or AZs) supported by Network Load Balancer (NLB).
Regions and Zones Overview
Regions are geographical locations of data centers. After you create a cloud resource, you cannot change its deployment region. Each region contains multiple isolated locations, known as zones. Each zone has its own independent power supply and network.
Zones within the same region can communicate with each other over an internal network. Fault isolation can be enabled between zones. If one zone experiences an outage, other zones in the same region remain unaffected. Regions are independent of each other. Zones in different regions are isolated from each other. However, low-latency connections can be established between zones within the same region.
To provide users with more stable and reliable Server Load Balancer services, NLB distributes traffic across the availability zones you specify. This enables real-time disaster recovery for your workloads. If one availability zone fails, traffic forwarding in other availability zones remains unaffected.
NLB Supported Regions and Zones
The regions supported by NLB in the table below are for reference only. For the actual supported regions and zones, refer to the purchase page.
Area | Region | Zone |
China | China (Hangzhou) | Zone B, Zone G, Zone J, Zone K, Zone I, and Zone H |
China (Shanghai) | Zone B, Zone D, Zone E, Zone F, Zone G, Zone L, Zone M, and Zone N | |
China (Shenzhen) | Zone C, Zone D, Zone E, and Zone F | |
China (Heyuan) | Zone A and Zone B | |
China (Guangzhou) | Zone A and Zone B | |
China (Qingdao) | Zone B and Zone C | |
China (Beijing) | Zone F, Zone G, Zone H, Zone I, Zone J, Zone K, and Zone L | |
China (Zhangjiakou) | Zone A, Zone B, and Zone C | |
China (Ulanqab) | Zone A, Zone B, Zone C, and Zone D | |
China (Chengdu) | Zone A and Zone B | |
China (Hong Kong) | Zone B, Zone C, and Zone D | |
Asia-Pacific | Philippines (Manila) | Zone A and Zone B |
Thailand (Bangkok) | Zone A and Zone B | |
Singapore | Zone A, Zone B, Zone C, and Zone D | |
Japan (Tokyo) | Zone A, Zone B, Zone C, and Zone E | |
South Korea (Seoul) | Zone A and Zone B | |
Malaysia (Kuala Lumpur) | Zone A, Zone B, and Zone C | |
Indonesia (Jakarta) | Zone A, Zone B, and Zone C | |
Europe and Americas | Germany (Frankfurt) | Zone A, Zone B, and Zone C |
UK (London) | Zone A and Zone B | |
US (Virginia) | Zone A and Zone B | |
US (Silicon Valley) | Zone A and Zone B | |
Mexico | Zone A | |
Middle East | SAU (Riyadh - Partner Region) | Zone A and Zone B |
UAE (Dubai) | Zone A and Zone B |
Regions that Support NLB Dual-Stack
Area | Region |
China | China (Hangzhou), China (Beijing), China (Shenzhen), China (Shanghai), China (Qingdao), China (Zhangjiakou), China (Chengdu), China (Guangzhou), China (Hong Kong), China (Heyuan), and China (Ulanqab) |
Asia Pacific | Thailand (Bangkok), Philippines (Manila), Singapore, Japan (Tokyo), South Korea (Seoul), Malaysia (Kuala Lumpur), and Indonesia (Jakarta) |
Europe and Americas | Germany (Frankfurt), UK (London), US (Virginia), US (Silicon Valley), and Mexico. |
Middle East | SAU (Riyadh - Partner Region) |
For more information, see Protocol versions.
References
DescribeRegions: queries the available regions for NLB.
Query Zones: Retrieves the list of zones in a region for NLB.