You should take a look at using vswitch. It lets you horizontally extend your physical networks into a zvm guest lan without routing on zvm. You're most of the way there sort of already with your osa card.
Vswitch lets you have the same network defined on physical and virtual hosts. No routing on zvm. Do that first, and then you should look at using vlans. Vlans isolate subnets into smaller groupings. Talk to your net admin. IF you are the net admin, too, then think about it! Vswitches do not depend on vlans. Vlans is an IEEE 802.1Q standard. Guest lans are a zvm implementation of virtualized networks, i.e., no special hardware required (no cables, routers, switches, etc.). IBM couldn't call 'em virtual lans 'cause that was already terminology used by 802.1Q (see above). David Kreuter -----Original Message----- From: Linux on 390 Port on behalf of Gene Walters Sent: Tue 5/8/2007 1:36 PM To: [email protected] Subject: Guest Lan/VSwitch/VLAN 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
