Ron > There is no way to get this all running of the one OSA?
Paying attention to the question mark at the end of what is otherwise apparently a statement, my very limited understanding of the principles of VSWITCH is that one real OSA is all you need and then only if you want your virtual LAN to "morph" into a real LAN at some point in its existence. Please read at least the redpaper and come back when you have digested the principles of VSWITCH. Here is a definition from the "Introduction to Connectivity Terminology" chapter of the "Connectivity" manual: <quote> 1.2.1.4 What Is a Guest LAN? A guest LAN represents a simulated LAN segment that can be connected to simulated network interface cards. There are two types of LAN segments: OSA-Express and HiperSockets. Each guest LAN is isolated from other guest LANs on the same system (unless some member of one LAN group acts as a router to other groups). 1.2.1.5 What Is a Virtual Switch? A virtual switch is a special type of guest LAN that provides external LAN connectivity through an OSA-Express device without the need for a routing virtual machine. </quote> http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/HCSC9C00/1.2.1.4 http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/HCSC9C00/1.2.1.5 Note that a "guest LAN", obviously the OSA-Express flavour, is what I called a "virtual LAN" above to emphasis the passage through minimally a single OSA feature to a *real* LAN, "external LAN connectivity". I do hope I've remembered the principles of a VSWITCH from the time I last read up on the topic a few years ago! Chris Mason On Wed, 20 Jun 2012 10:19:53 -0500, Ron MacRae <[email protected]> wrote: >Lutz, > Thanks for your help. As I said before I used to be a VM sysprog 20+ > years ago before TCPIP entered the IBM world. > >I was hoping the VSWITCH would allow us to use the same OSA card as VM. >That was what I was trying to achieve. > >I had thought it might be like VMWARE's VM where I can have several virtual >machines all using different IP addresses via the same network card as the >host windows box. Obviously it isn't but I don't have another picture in my >head. > >There is no way to get this all running of the one OSA? We need one card for >the TCPIP VM and another one for the VSWITCH? > >We will pull another OSA card across to this LPAR and try again. > >Thanks for the clarification. > >Ron. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
