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ulb
Classic Load Balancer CLB
Operation Guide
VServer

VServer

Add Vserver

Operation Steps

After the creation of CLB instance, you can click Details to go to the VServer Management page to add VServer.

  1. On the VServer Management page, click Add VServer.

  2. Fill in the configuration information to create the VServer. See the detailed configuration instructions below.

Configuration Instructions

The options for creating a VServer listener include the following:

ConfigurationDescription
VServer NameThe name of the VServer, required.
Protocol and PortThe protocol and port listened by the listener, including HTTP/HTTPS/TCP/UDP protocols.
Load Balancing AlgorithmThe way the listener load balances data packets.
Service NodeUsually, adding service nodes is after the creation of the VServer listener. This option provides a way to copy the service node pool configuration from other VServers to quickly create using existing configurations.
Service Session PersistenceFor HTTP/HTTPS protocols, use default/custom keywords to maintain user login status. For TCP (packet forwarding)/UDP, the default connection timeout is 900s. After enabling/disabling session persistence, the current long connection may be interrupted and reconnected. After enabling session persistence, you can set the session persistence time. The session maintenance time and connection timeout are both set.
Connection Maintenance TimeUnder TCP request agent mode, or HTTP, HTTPS protocols, you can select the effective time of the client request connection. The optional time range is [1-86400] seconds.
Node Health CheckHealth check type. UDP protocol supports port check, PING check and UDP check; TCP protocol supports port check; HTTP/HTTPS protocol supports port check and HTTP check. For details on health check principles, rules, and use cases, see Health Check.

Delete VServer

Operation Steps

Go to VServer Management page.

Delete a single VServer

  1. Select the VServer to be deleted, click the VServer name on the left.

  2. In the overview information on the right, click Delete VServer to complete the deletion.

Change VServer Configuration

Go to VServer Management page to change VServer configuration.

Operation Steps

  1. In the basic information module on the right, click Change Settings.
  1. The popup window for changing VServer appears, where you can change the VServer configuration. The configurations that can be changed are as follows. The configurations not modified remain unchanged.

Configuration Instructions

ConfigurationDescription
VServer NameThe name of the VServer, required.
Load Balancing AlgorithmThe way the listener load balances data packets.
Service Session PersistenceFor HTTP/HTTPS protocols, use default/custom keywords to maintain user login status.
Connection Maintenance TimeUnder TCP request agent mode, or HTTP, HTTPS protocols, you can select the effective time of the client request connection. The optional time range is [1-86400] seconds.
Node Health CheckDepending on the selected protocol, there are two ways to check: service address/port check and HTTP check.