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zhoumeng 3275979377 ELB_UMN_IPV6_1218 
Reviewed-by: Hajba, László Antal <laszlo-antal.hajba@t-systems.com>
Co-authored-by: zhoumeng <zhoumeng35@huawei.com>
Co-committed-by: zhoumeng <zhoumeng35@huawei.com>
2024-02-09 10:31:35 +00:00

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Load Balancing on a Public or Private Network

A load balancer can work on either a public or private network.

Load Balancing on a Public Network

You can bind an EIP to a load balancer so that it can receive requests from the Internet and route the requests to backend servers.

Figure 1 Load balancing on a public network

Load Balancing on a Private Network

A load balancer has only a private IP address to receive requests from clients in a VPC and routes the requests to backend servers in the same VPC. This type of load balancer can only be accessed in a VPC.

Figure 2 Load balancing on a private network

Network Types and Load Balancers

Table 1 Dedicated load balancers and their network types

Load Balancer Type

Network Type

Description

Dedicated load balancers

Public IPv4 network

Each load balancer has an IPv4 EIP bound to enable it to route requests over the Internet.

Private IPv4 network

Each load balancer has only a private IPv4 address and can route requests in a VPC.
Table 2 Shared load balancers and their network types

Load Balancer Type

Network Type

Description

Shared load balancers

Public network

Load balancers can route requests on both public and private networks.

  • Each load balancer has an EIP bound to enable it to route requests over the Internet.
  • The load balancer also has a private IP address and can route requests in a VPC.

Private network

Each load balancer has only a private IP address and can route requests in a VPC.
Parent topic: Service Overview