Yep, that is the hard way, now a days. Vswitch is the way to go. Much, much easier to setup and better performance along with automatic fall over, being VERY easy to setup.
No longer will you be using your TCPIP stack on VM for routing packets to guest OSs. The VM stack will only be used for CMS client/servers. Now, converting over, is a small pain. Nothing is as easy as leaving everything alone <G>. You will need another set of OSA addresses (I think your z/890 has a few to spare). Vswitch is basically, DTCVSW1 and DTCVSW2 service machines (controllers for failover). And something similar to the following in your system config file: DEFINE VSWITCH VSW1 RDEV 2000 2003 PRIROUTER MODIFY VSWITCH VSW1 GRANT TCPIP MODIFY VSWITCH VSW1 GRANT LINUX24 MODIFY VSWITCH VSW1 GRANT LINUX27 MODIFY VSWITCH VSW1 GRANT DOSESA2 MODIFY VSWITCH VSW1 GRANT Y2KESA2 MODIFY VSWITCH VSW1 GRANT NEWESA4 MODIFY VSWITCH VSW1 GRANT TSTESA4 MODIFY VSWITCH VSW1 GRANT GEACESA4 MODIFY VSWITCH VSW1 GRANT GEACESA5 MODIFY VSWITCH VSW1 GRANT GEACESA6 MODIFY VSWITCH VSW1 GRANT STLESA2 MODIFY VSWITCH VSW1 GRANT STLESA2F MODIFY VSWITCH VSW1 GRANT TSTESA5 MODIFY VSWITCH VSW1 GRANT TSTESA5F MODIFY VSWITCH VSW1 GRANT HIGHAVL MODIFY VSWITCH VSW1 GRANT TSTESA3 VMLAN MACPREFIX 030001 (there are dynamic versions to these commands, so you don't have to cycle VM to bring it up) The Linux machine has something similar to the following in its directory: NICDEF 600 TYPE QDIO LAN SYSTEM VSW1 And then in Linux, you configure an qeth type device. You network does change. You are no longer routing thru TCPIP. Your default gateway may now be your router (xxx.xxx.xxx.001 address), instead of the IP address for TCPIP. It is easiest to create a new Linux image (if you are not an IP geek), to play and test with. For me, it took a while for the change in routing, to really sink in my mind (or sink my mind). Tom Duerbusch THD Consulting >>> Gene Walters <[EMAIL PROTECTED]> 5/8/2007 12:36 PM >>> Hi All, I know this is a broad question, but I am trying to understand some things. We currently are using CTC connections for our network access to our Linux Instances running under VM. We were told that CTC's were doing it the hard way. So I am trying to figure out what the other way is. We have Z/VM 5.1 running on an IFL and an OSA-Express card. What should we be using instead of CTC's for network connection, VGuest, VSwitch VLAN? I'm confused as to what each actually does. Any help would be appreciated. Thanks Gene Gene Walters System Programmer WV Dept of Administration - OT 304-558-5914 ext 8902 Fax 304-558-1351 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390