ID: Q107569
The information in this article applies to:
This document provides the configuration parameters required on an IBM 3174 controller acting as an APPN Network Node, supporting a downstream SNA Server (APPN LEN Node) over 802.2. The link between the 3174 and the host or peer system may be any link type supported by the 3174. To support PU2.1 attached devices with independent LU6.2, the 3174 must be running microcode support level "C" or greater.
SNA Server can access a host or peer system through an IBM 3174 APPN Network Node. In this configuration, SNA Server is configured with an 802.2 connection (as a PU 2.1 LEN node), which may include independent APPC LU support, communicating through an adjacent IBM 3174 configured as an APPN Network Node.
On the SNA Server machine, do the following:
1. Run SNA Server Setup and add an 802.2 link service.
NOTE: Link Services are added using SNA Server Manager in SNA Server
version 3.0 and later.
- Network Name: Must match parameter #501 in the 3174 configuration.
- Control Point Name: Must match the CPNAME parameter (Node type #1),
configured in the NETWORK RESOURCES and ASSOCIATED LUs in the 3174.
In SNA Server 3.0 and later, the network name and control point can be
set either globally as in SNA Server version 2.x or they can be set for
each connection in the connection properties dialog box.
- LU 6.2 type: Select Independent to support multiple (parallel)
sessions.
- LU Alias: Must match the Local LU name used by the Local APPC
transaction program (refer to the product documentation).
- Network Name: Must match parameter #501 in the 3174 configuration.
- LU Name: In the 3174 configuration, this must match one of the 3174
LUNAMES that is configured off the CPNAME configured on behalf of SNA
Server. The 3174 supports up to 4 LUNAMES (for LEN nodes) off one
CPNAME.
- Choose Enable Automatic Partnering if you want SNA Server to
automatically partner this APPC LU with all remote APPC LUs in the
SNA Server configuration.
- Choose "Member of Default Outgoing Local APPC LU Pool" only if the
local APPC transaction program does not specifies a local APPC LU,
and you want this LU to be automatically used (this is not used by
most programs).
using the following properties:
- Remote End: Peer System
NOTE: Remote End: Host system must be configured if the connection
also supports 3270 devices. This setting forces SNA Server to have a
secondary link role, while "Peer system" allows SNA Server to
negotiate the link role to be either primary or secondary. Either
role will support independent LU6.2 sessions.
- Activation: (As desired by the administrator--default for 802.2
connections is On Server Startup.)
- Allowed Directions: Outgoing and Incoming should be selected.
- Remote Network Address: Enter the network card interface address of
the 3174. This is set in Response 900 in the 3174 customization
program.
- Local Node ID: not used--leave to default.
- Remote Node Name:
- Network Name: Must match parameter #501 in the 3174 configuration
- Control Point Name: Must match parameter #511 in the 3174
configuration.
- Remote Node ID: not needed--leave blank.
- The Advanced settings can be left at the default settings (if remote
SAP = 04).
connection, which can include both 3270 LUs and remote APPC LUs. To
configure a Remote APPC LU off the connection, enter the following
information in the APPC Remote LU Properties dialog box:
- LU Alias: Name used by the Local APPC transaction program (refer to
product documentation).
- Network Name: Remote VTAM NETID (which usually matches #501 in the
3174 configuration).
- LU Name: Remote APPC LU name configured in VTAM (LU macro name in
VTAM).
- Uninterpreted LU Name: Usually the same as the LU Name.
- Check Supports Parallel Sessions if you want to support multiple
sessions.
- Check Enable Automatic Partnering if you want SNA Server to
automatically partner this APPC LU with all other Local LUs
configured.
- Implicit Incoming Mode: Not necessary.
the Mode:
- In the Local or Remote APPC LU dialog box, zoom on the Partners
button. If the Local and Remote LUs are not already partnered with
the desired APPC mode name, zoom on the Modes button.
- To create a new Mode, enter the new Mode name over an existing Mode.
This Mode name must match the "DLOGMOD" entry in the Remote APPC LU
macro in VTAM.
- Partner your Local APPC LU and Remote APPC LU with this new mode, if
they are not already partnered together.
Server Admin, if you want to create pools of 3270 LUs for your users.
not necessary for APPC, though is required for user access to 3270
sessions.
On the IBM 3174 machine, do the following:
1. Using the 3174 configuration utility, configure downstream devices in
Panel 940. Enter the SNA Server network card (MAC) address in this
panel. (You can find the network card address of the SNA Server machine
by entering "NET CONFIG WKSTA" from the command line of the Windows NT
machine).
option, as well as the Local APPC LU names as "LUNAMES" in the
ASSOCIATED LUs section for the control point.
procedures.
Also note the configuration questions for the 3174 change from level to level of 3174 microcode. Be sure to use the correct 3174 planning guide for the microcode installed in the 3174.
Additional query words: snaprod
Keywords : kbenv kbnetwork ntconfig sna211 sna3 sna4 sna2 sna21
Version : WINDOWS:2.0,2.1,2.11,3.0,4.0
Platform : WINDOWSLast Reviewed: May 24, 1999