This post appears also in the IBMTCP-L list.
There are some responses there giving assurance that the SNA component of
Communications Server (VTAM) is indeed necessarily involved.
Chris Mason
----- Original Message -----
From: "Raymond Noal" <[EMAIL PROTECTED]>
Newsgroups: bit.listserv.ibm-main
To: <[email protected]>
Sent: Tuesday, October 02, 2007 1:51 AM
Subject: z/OS using a guest virtual LAN under z/VM
Dear List:
Does anybody have a z/OS system (I'm using 1.8, but it does not have to
be) running in a virtual machine under z/VM (I'm using 5.3.0, but it
does not have to be) and the z/OS virtual machine is connected to a
guest virtual LAN.
If so, can you please answer the following questions:
1) what is the OSA CHPID type defined as for your z/VM system?
2) what are the DEVICE and LINK statements defining your guest
virtual LAN for your TCPIP virtual machine?
3) what are the DEVICE and LINK statements for z/OS's TCP/IP
definitions for the connection to the guest virtual LAN?
Doing a lot of RTFM-ing, it seems that the CHPID type must be OSA
Express in QDIO mode (TYPE=OSD in the I/O Config.) and the virtual LAN
segment must also be in QDIO mode (the only other choice is HIPERSOCKETS
- DEFINE LAN VMLAN1 QDIO OWNER SYSTEM in the SYSTEM CONFIG file). The
DEVICE and LINK statements for TCP/IP in z/OS seem to be:
DEVICE ZVMLAN1 MPCIPA NONROUTER
LINK VLAN1 IPAQENET ZVMLAN1
But there is mention made of requiring a TRL and TRLE definition running
in VTAM. Is this TRUE? I find it difficult to believe that I have to
involve VTAM in this configuration. But, then again, .....
Any help/guidance greatly appreciated.
TIA
HITACHI
DATA SYSTEMS
Raymond E. Noal
Senior Technical Engineer
Office: (408) 970 - 7978
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