Re: z/VM V5R2 TCP device initialization question

[Miguel Diaz]

Craig,

This failure code indicates a mismatch
between the transport layer of the VSWITCH and the network card you're
coupling to it.  In your case you've defined a layer 2 VSWITCH (type
ETHERNET).  The VM TCP/IP stack does not support layer 2 connections,
which is why you receive this error when you attempt to bring up the device.
 This message should have been accompanied by "DTCOSD355E  Possible
LAN transport misconfiguration detected during OSD device initialization."
which gives a much better idea of what is actually occurring.

Regards,
Miguel Diaz
z/VM TCP/IP Development 

The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU>
wrote on 04/19/2006 03:37:39 PM:

> Hi,
> I have a question about where I find the meaning of a failure 
> code of F6 for message DTCOSD066E when I try to start a device
> in my TCPIP stack that is attached to a persistent VSWITCH 
> defined as ETHERNET VLAN UNAWARE.
> 
> The VSWITCH is defined as:
> 
> Define vswitch dtcvsw1 rdev b000 c000 connect controller dtcvsw1
> ethernet vlan unaware portname OSAE2P1 OSAE3P1 
> 
> My controller has been xautologged.
> 
> My TCPIP device & link definition is:
> 
> DEVICE dvnic01 OSD e000 PORTNAME DTCVSW1
> LINK lvnic01 QDIOETHERNET dvnic01 MTU 0 VLAN ANY   
> 
> When I start the device, I receive this DTCOSD66E message.
> TCP/IP Message and Codes is singularly unhelpful in digging
> out the misconfiguration problem.
> 
> Thanks
> -- 
> Craig Dudley
> Manager, Mainframe Technical Support Group
> Office of Information Technology
> State of New Hampshire
> 27 Hazen Drive
> Concord, NH 03301
> 603-271-1506    Fax 603-271-1516