On Friday, 04/02/2004 at 11:55 CST, Rich Smrcina <[EMAIL PROTECTED]> wrote: > For what it's worth here's the pertinent entry in my chandev.conf: > > noauto;qeth0,0x0800,0x0801,0x0802;add_parms,0x10,0x0800,0x0802,portname:GL1 > > If this is the first machine to use the Guest Lan it will be able to set > the name, so what you use really doesn't matter. All of the other > machines will have to comply.
No. The portname is only relevant to hosts sharing the same *adapter* (real or virtual), not the LAN to which the adapter is connected. So, for guest LANs, you only see this with second-level z/VM systems using virtual subchannels created on the first-level system via DEFINE NIC with the DEVICES parameter, specifying more than the default of 3. > I see that the LAN is restricted, is this machine authorized to use it? > (I would have expected a different message, though) The COUPLE will fail if you don't have authorization. > On Fri, 2004-04-02 at 11:42, Kern, Thomas wrote: > > Swapping the order of qeth-1 and add_parms doesn't change it. > > > > cat /etc/chandev.conf > > chandev=noauto > > lcs-1,0x3ad0,0x3ad1,0,3 > > qeth-1,0x0e04,0xe05,0x0e06,0,0 > > add_parms,0x10,0x0e04,0x0e06,portname:VMLAN01 Problem: By using autoconfiguration (the "-1") you are going to end up with lcs0 and qeth0. Assuming the LCS device is an ethernet, Linux will try to create *interface* names of eth0 for both devices. One will fail. Specify "lcs0" and "qeth1". And I haven't been paying super-close attention to what level of Linux Thomas is using, but I think "chandev=noauto" should just be "noauto". Those who have seen my Connecting to Linux on zSeries presentation at various conferences know that I am firmly against autoconfig. Don't allow OSAs to autonegotiate the duplex setting and don't allow Linux to dynamically choose the device name (and, by extension, the interface name). You can find a copy of this presentation at http://www.vm.ibm.com/devpages/altmarka/s9233a.pdf. Alan Altmark Sr. Software Engineer IBM z/VM Development ---------------------------------------------------------------------- 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
