Coyote Point Systems Equalizer GX Series, Administration Manual

Page: 518 / 866

Global Load Balance
Viewing and Modifying GeoCluster Parameters (GUI)
To view or modify a GeoCluster’s load-balancing options, proceed with the following:
1. Log in to the GUI (See
"Logging In"
on page 230).
2. Click on the GeoCluster on the left navigation pane. The figure below will be displayed:
3. View and Modify paramaters using the following guidelines:
FQDN
The GeoCluster name which is the fully-qualified domain name (FQDN) of the
GeoCluster (for example, www.coyotepoint.com ). The FQDN must
include all name components up to the top level (com, net, org, etc). Do not
include the trailing period
Policy
Three basic metrics are used by the policy to load balance requests among
sites: the current load on the site, the initial weight setting of the site, and ICMP
triangulation responses. The policy setting tells Envoy the realtive weight to
assign to each metric when choosing a site:
round robin causes Envoy to send requests to each available site, in turn, in
the order they are listed in the configuration. This is equivalent to traditional
‘round-robin DNS’ load balancing.
round trip weights the ICMP triangulation information received from each site
more heavily than other criteria.
adaptive give roughly equal weights to the site load and ICMP triangulation
responses, and gives less weight to the initial weight for the site. This is the
default setting.
site load weights the current load at each site more heavily than other criteria.
site weight weights the user-defined initial weight for each site more heavily
than other criteria.
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