Oracle Net8 Configuration and Troubleshooting

Name

DESCRIPTION_LIST

Synopsis

DESCRIPTION_LIST =
  (DESCRIPTION...)
  [(DESCRIPTION...)
  ...]
  [(FAILOVER = {ON | OFF | YES | NO | TRUE | FALSE})]
  [(LOAD_BALANCE = {ON | OFF | YES | NO | TRUE | FALSE})]
  [(SOURCE_ROUTE = {ON | OFF | YES | NO})]

A description list is used to enclose a list of descriptions associated with a net service name.

Parameters

DESCRIPTION

See the entry for the DESCRIPTION parameter in the next section.

FAILOVER

Enables or disables connect-time failover for descriptions in the list. By default, failover is on. When failover is on, a failure to connect using one description causes Net8 to try another description in the list. Net8 works through addresses in order unless client load balancing is used.

LOAD_BALANCE

Enables or disables client load balancing. When a description list is used, client load balancing is on by default. When making a new connection, Net8 randomly chooses a description from the description list. If failover is also on, then Net8 randomly progresses from one description to another until either all descriptions have been tried or a connection is made.

SOURCE_ROUTE

Is used to route connections through Connection Manager. The default setting is OFF. When enabled, the description list must include two or more descriptions. The first description must point to a Connection Manager instance. Net8 then connects by hopping from one description to the next until a database listener is reached.