Specifications of Dedicated Load Balancers

Dedicated load balancers are available in different specifications. Each specification contains some key metrics from which you can decide whether the specification meets your needs. When the traffic exceeds the selected specifications, new requests will not be routed, and packet loss will occur.

Table 1 and Table 2 list the specifications of dedicated load balancers. (Available specifications may vary depending on the resources in different regions.)

Table 1 Network load balancing (TCP/UDP)

Type

Maximum Connections

CPS

Bandwidth (Mbit/s)

Number of LCUs in an AZ

Small I

500,000

10,000

50

10

Small II

1,000,000

20,000

100

20

Medium I

2,000,000

40,000

200

40

Medium II

4,000,000

80,000

400

80

Large I

10000000

200,000

1,000

200

Large II

20000000

400,000

2,000

400

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Table 2 Application load balancing (HTTP/HTTPS)

Type

Maximum Connections

CPS (HTTP)

CPS (HTTPS)

QPS

Bandwidth (Mbit/s)

Number of LCUs in an AZ

Small I

200,000

2,000

200

4,000

50

10

Small II

400,000

4,000

400

8,000

100

20

Medium I

800,000

8,000

800

16,000

200

40

Medium II

2,000,000

20,000

2,000

40,000

400

100

Large I

4,000,000

40,000

4,000

80,000

1,000

200

Large II

8,000,000

80,000

8,000

160,000

2,000

400

If you have added multiple listeners to a load balancer, the sum of QPS values of all listeners cannot exceed the QPS defined in each specification.

Parent topic: Service Overview