Or - use a VIPA address on your TCPIP stack - easy easy. 

Marcy Cortes


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-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Lee Stewart
Sent: Thursday, May 11, 2006 8:51 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: [IBMVM] TCPIP Failover

Hi again,

We have a client that desires to have automatic failover capability for
the VM TCP/IP stack.

We have today, a connection to TCPIP by each of two OSAs, each with a
separate IP address.  We also have a virtual switch, also connected to 
the two OSAs, and two Vswitch controllers.   The Vswitch connections 
failover great.   But using the TCPIP stack, you loose your connection, 
then have to manually reconnect using the other IP address.

The TCPIP stack also has a VCTC connection to an old VSE machine,
therefore also has the proxyarp option.

I thought, apparently wrongly, that I could just hook TCPIP to the
Vswitch via a different home address.  But that doesn't work as it tries
to register both old TCPIP addresses both via the OSA connection and
also via the Vswitch (tied to the same OSAs).  Needless to say, not much
worked...

Would the best choice be to drop the two direct OSA connections and only
connect via the Vswitch?  Or???

Lee
-- 

Lee Stewart, Senior SE
Sirius Enterprise Systems Group
Phone: (303) 798-2954
Fax: (720) 228-2321
[EMAIL PROTECTED]
www.siriuscom.com

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