Specifications
Setting Up a Failover Configuration
Equalizer Installation and Administration Guide 49
4. Enter a unique name for the new peer in the peer name field.
5. Enter the internal and external addresses for this peer in the internal address and external
address fields.
In single network mode, you will see one address and corresponding network mask depending
on the type of Equalizer. Equalizer models with an integrated switch use the internal address
when in single network mode. All other models use the external address when in single
network mode.
6. Check preferred primary if the peer being defined is the preferred primary. If the peer being
defined is the backup peer, do not check this flag.
7. Click the add button to add the peer.
(Clicking the add button adds the peer and disables failover until you commit the changes in
Step 11.)
8. Configure the second backup peer by repeating Step 3 through Step 7.
9. Specify the address and netmask for the failover aliases (see Figure 26 on page 49).
Figure26 Failoveraliasessectionofthefailoverconfigurationscreenforadualnetworkconfiguration
The alias addresses are unique IP addresses assigned to the failover pair, and are passed
between them whenever a failover occurs. The netmask can be left blank and it will default to
the same as the associated interface. The Equalizer that is running in primary mode assumes
these aliases; the servers should use the internal address (when in dual network mode) or the
single address (when in single network mode) as their default gateway. If you are in dual
network mode and running Envoy, the external failover alias is used for DNS queries to Envoy.
10. You should accept the default failover timing parameters. These parameters affect how the
peers try to heartbeat each other.
Figure27 Failovertimingsectionofthefailoverconfigurationscreenforadualnetworkconfiguration