Create a load balancer resource
As a cluster-based technology, load balancing distributes access traffic to multiple back-end real servers based on the forwarding policies. This technology improves the service processing performance and increase service reliability.
Load balancing contains the following major components:
Virtual servers that provide virtual services. You can specify the IP address of a virtual server on a load balancer resource. When the virtual server receives access requests of matching clients, it distributes the access requests to a healthy real server.
Real servers that process real services.
Procedure
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· You can drag a load balancer resource only to a router. · A load balancer resource on the topology represents a load balancer listener instead of the load balancer instance associated with the listener. · If the number of firewalls exceeds the upper limit, you must add resource quotas. For more information, see "Increase resource quotas." |
On UIS Cloud, click Cloud Services on the top navigation bar. On the UIS-Sec portal of UIS Manager Standard Edition, click Network Services on the top navigation bar.
From the left navigation pane, click VDC.
Drag the load balancer resource icon
to a router.
In the Create Listener dialog box, you can select to configure or not to configure the load balancer listener. To configure the listener, configure the parameters as described in "Parameters," and then click Create. If you select to not configure the listener, click Cancel. To configure a load balancer listener that has been created but not configured, right-click on the load balancer listener, and then select Configure.
Parameters
Load Balancer:
Click the 
icon next
to the input box of the Load Balancer field to open
the Create Load Balancer dialog box.
Select User: Select a user for the load balancer instance.
Name: Enter a name for the load balancer instance.
Description: Enter a description for the load balancer instance.
Virtual Service Network: Select a private network for the listener of the load balancer instance.
Virtual Service IP: Enter the IP address to which the virtual service listens. This address is used to receive external access requests. When a user accesses the virtual service, the listener converts the virtual service into a real service.
Name: Enter a name for the listener.
Description: Enter a description for the listener.
Protocol: Select a listening protocol. Options include HTTP, HTTPS, and TCP.
Port: Specify a listening port number.
Max Connections: Specify the maximum number of connections that the listener can establish. By default, no limit is set.
Get Real IP: After the virtual server converts the source addresses in HTTP packets, it inserts the real source addresses of the packets into the HTTP extended fields so that the back-end real servers can obtain the real source addresses.