> ### Connection Failover Properties

> Table 1-2 summarizes the connection properties that control how connection failover works with the ODBC driver. See Table 1-1 "ODBC Connection Attributes" for details about configuring each property.

> Table 1-2. Summary: Connection Failover Attributes for the ODBC Driver
> Connection Attribute | Characteristic
> --- | ---
> AlternateServers | A list of alternate SequeLink servers to which the driver will attempt to connect if the primary SequeLink server is unavailable. A port number and an IP address or server name identifying each server are required. If the primary SequeLink server is an LDAP server, each alternate server must be an LDAP server.
> ConnectionRetryCount | Number of times the driver retries the primary SequeLink server, and if specified, alternate servers until a successful connection is established. The default is 5.
> ConnectionRetryDelay | Wait interval, in seconds, between connection retry attempts when the ConnectionRetryCount property is set to a positive integer. The default is 1.
> Host | The TCP/IP address or server name of primary SequeLink server. LDAP: If LDAP is enabled, this identifies the TCP/IP address of the LDAP server. This can also be a list of LDAP servers separated by a blank space (for example, "ld1.foo.com ld2.foo.com ld3.foo.com"). If the first LDAP server in the list does not respond, the ODBC Client will try to connect to the next LDAP server in the list.
> LoadBalancing | Sets whether the driver will use client load balancing in its attempts to connect to the list of SequeLink servers (primary and alternate). If client load balancing is enabled, the driver uses a random pattern instead of a sequential pattern in its attempts to connect. The default is false (client load balancing is disabled).
> Port | The TCP/IP port on which the primary SequeLink server is listening. If LDAP is enabled, this identifies the TCP/IP port on which the LDAP server is listening.