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Configuring GSLB
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3. In each zone that are participating in GSLB, add GSLB-enabled NetScaler device.
For more information, see Section 16.9.2.2, “Enabling GSLB in NetScaler”.
On CloudPlatform side, perform the following as a domain administrator or user:
1. Add a GSLB rule on both the sites.
See Section 16.9.2.3, “Adding a GSLB Rule”.
2. Assign load balancer rules.
See Section 16.9.2.4, “Assigning Load Balancing Rules to GSLB”.
16.9.2.1. Prerequisites and Guidelines
• The GSLB functionality is supported both Basic and Advanced zones.
• GSLB is added as a new network service.
• GSLB service provider can be added to a physical network in a zone.
• When users have VMs deployed in multiple availability zones which are GSLB enabled, they can
use the GSLB functionality to load balance traffic across the VMs in multiple zones.
• The users can use GSLB to load balance across the VMs across zones in a region only if the admin
has enabled GSLB in that region.
• The users can load balance traffic across the availability zones in the same region or different
regions.
• The admin can configure DNS name for the entire cloud.
• The users can specify an unique name across the cloud for a globally load balanced service. The
provided name is used as the domain name under the DNS name associated with the cloud.
The user-provided name along with the admin-provided DNS name is used to produce a globally
resolvable FQDN for the globally load balanced service of the user. For example, if the admin has
configured xyztelco.com as the DNS name for the cloud, and user specifies 'foo' for the GSLB virtual
service, then the FQDN name of the GSLB virtual service is foo.xyztelco.com.
• While setting up GSLB, users can select a load balancing method, such as round robin, for using
across the zones that are part of GSLB.
• The user shall be able to set weight to zone-level virtual server. Weight shall be considered by the
load balancing method for distributing the traffic.
• The GSLB functionality shall support session persistence, where series of client requests for
particular domain name is sent to a virtual server on the same zone.
Statistics is collected from each GSLB virtual server.
16.9.2.2. Enabling GSLB in NetScaler
In each zone, add GSLB-enabled NetScaler device for load balancing.
1. Log in as administrator to the CloudPlatform UI.
2. In the left navigation bar, click Infrastructure.