metric (real server group view)

Function

The metric command configures the load balancing algorithm.

Format

metric { roundrobin | weight-roundrobin | least-connection | weight-least-connection | source-ip-hash | weight-source-ip-hash }

Parameters

Parameter	Description	Value
roundrobin	Indicates the round robin algorithm.	-
weight-roundrobin	Indicates the weighted round robin algorithm.	-
least-connection	Indicates the least connections algorithm.	-
weight-least-connection	Indicates the weighted least connections algorithm.	-
source-ip-hash	Indicates the source ip hash algorithm.	-
weight-source-ip-hash	Indicates the weighted source ip hash algorithm.	-

Views

Real server group view

Default Level

2: Configuration level

Usage Guidelines

The default algorithm is round robin (roundrobin). One real server group can use only one load balancing algorithm.

If real servers have different performance, use a weighted load balancing algorithm (weight-roundrobin, weight-least-connection, or weight-source-ip-hash) and set weights for each real server.

Example

# Configure the least connections algorithm as the load balancing algorithm.

<sysname> system-view
[sysname] slb
[sysname-slb] group 1 grp1
[sysname-slb-group-1] metric least-connection