The vswitch doesn't really advertise. You can do a couple of things. Get both of your systems hooked to the same subnet (vlan). We've done that. Or get a vip address on a new subnet (like a /30 of your own) and run a routing protocol (zebra, quagga) on your linuxes.
A vswitch can be part of more than one subnet, but you do have to set it up that way out in the network. So you could give both system A and system B access to both subnets you have today. Marcy Cortes "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Ayer, Paul W Sent: Wednesday, April 16, 2008 5:26 AM To: LINUX-390@VM.MARIST.EDU Subject: [LINUX-390] Vswitch and subnets Good morning, Running Oracle RAC and having a problem with supporting the way Oracle does VIP address fail over. This environment has two z9 systems running z/VM 5.3 with Vswitch on each and a linux (rhel 44). On each z/VM the Vswitch is setup to support a specific subnet. Vswitch on System A side supports 192.168.127.* Vswitch on System B side supports 192.168.87.* Oracle on linux on system A has Home address 192.168.127.1 ETH0 Oracle VIP 192.168.127.2 ETH0:1 Oracle Priv 192.168.127.3 ETH1 Oracle on linux on system B has Home address 192.168.87.1 ETH0 Oracle VIP 192.168.87.2 ETH0:1 Oracle Priv 192.168.87.3 ETH1 * The problem; If something happens on the system A side and access is lost (at any level) Oracle on the system B side brings up via ETH0:2 the VIP address of the lost system. So now system B linux looks like this; Home address 192.168.87.1 ETH0 Oracle VIP 192.168.87.2 ETH0:1 Oracle VIP 192.168.127.2 ETH0:2 Oracle Priv 192.168.87.3 ETH1 A Q VSWITCH DET shows the 192.168.127.2 address known in the Vswitch, but it can not be routed to. Is there anything that can be done in he Vswitch to help advertise just this address only, since all the other 192.168.127.* addresses are still on the other system... Thank you, Paul... ---------------------------------------------------------------------- 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
