http://bugzilla.novell.com/show_bug.cgi?id=1094575 http://bugzilla.novell.com/show_bug.cgi?id=1094575#c15 --- Comment #15 from LTC BugProxy --- ------- Comment From ursula.braun@de.ibm.com 2018-05-30 08:24 EDT------- There are three different kernel levels possible to determine the MAC address for VSWITCH NICs: - old kernels just using the old IPA READ MAC method - intermediate kernels using DIAG 26C on the data subchannel (this results in an allocation of a new MAC address) - latest kernels using DIAG 26C on the read subchannel Your dbginfo material shows there is still this extra MAC address 02-00-00-00-42-CD defined: root@s390vsl205> vmcp -b 4k q v nic Adapter 0700.P00 Type: QDIO Name: UNASSIGNED Devices: 3 MAC: 02-00-00-00-01-07 VSWITCH: SYSTEM VSWN1 Adapter 0800.P00 Type: QDIO Name: HYD1G1 Devices: 3 MAC: 02-00-00-00-42-CD VSWITCH: SYSTEM VSWNL2 MAC: 02-00-00-00-01-08 Device: 0802 Current Can you redefine this NIC with "vmcp det nic 0800", "vmcp def nic 0800 type qdio devices 3", "vmcp couple 0800 to VSWNL2"? Then you should no longer see MAC: 02-00-00-00-42-CD. And as long you do not run an intermediate kernel, there should no other MAC address show up anymore. -- You are receiving this mail because: You are on the CC list for the bug.