Specifications

Working with Sites
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6. Specify the MX exchanger, which is the fully qualified domain name to be returned if
Equalizer receives a “mail exchanger” request for this geographic cluster. The mail exchanger
is the host responsible for handling email sent to users in the domain.
7. Select a policy. The policy determines the algorithm that Equalizer will use to distribute
requests among the sites in the cluster:
• round trip, which weights the client’s network proximity more heavily than other
criteria.
• adaptive, which takes all available information into account when selecting a site. This
setting is a reasonable default.
• site load, which weights the current load at each site more heavily than other criteria.
• site weight, which weights the user-defined static weight for each site more heavily than
other criteria.
8. Check or clear the ICMP triangulation checkbox. When you check ICMP triangulation, each
Envoy site pings the client and collects latency information, which provides more accurate
client location information. If you do not want to allow Equalizer to ping clients when they
make a request, clear the ICMP triangulation checkbox.
9. Click the commit button.
Deleting a Geographic Cluster
To delete a geographic cluster, follow these steps:
1. Log into the Equalizer Administration Interface in edit mode.
2. In the left frame, click the name of the geographic cluster to be deleted. The geocluster screen
appears in the right frame.
3. Select Delete this GeoCluster from the local menu in the geocluster screen.
4. When prompted, click OK to verify that you really want to remove the cluster. Equalizer
deletes the GeoCluster and all its sites.
Working with Sites
This section describes how to use Equalizer to add or delete a site from a geographic cluster and
how to adjust a site’s static weight.
Adding a Site to a Geographic Cluster
To add a site to an existing geographic cluster, follow these steps:
1. Log into the Equalizer Administration Interface in edit mode.
2. In the left frame, click the name of the geographic cluster to which you want to add the site.