Backup Address

We have the following situation here. On an AIX SP I need to connect from one SP node (that just has the Oracle client) to another SP node
(that has the Oracle database). There are actually three IP addresses I
can put in the "client's" tnsnames.ora; one that uses the normal backbone, one that uses a "highspeed switch", and one that uses the external IP address. Normally I use the normal backbone IP address, but sometimes that goes down, which causes a TNS error (of course).

What I am looking for is a way to list multiple ADDRESSes in tnsnames.ora and have it do the following: If the normal backbone fails, try the highspeed switch IP address. And if the highspeed switch IP address fails, us the external IP address.

I tried using ADDRESS LIST in tnsnames.ora, but if I put the normal backbone IP address first and the normal backbone is down, then it doesn't try the next one.

Any ideas?

Wayne

--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Bellefeuille, Wayne S
  INET: Wayne.Bellefeuille_at_allina.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L


(or the name of mailing list you want to be removed from).  You may

also send the HELP command for other information (like subscribing).