HP-UX SNAplus2 Diagnostics Guide

Resolving Common Problems

Basic Checks

Chapter 240

Step 1. Check that the local SAP (conﬁgured in the link station's port

lsap_address

parameter) matches the remote system's remote SAP.

Step 2. Check that the remote SAP (conﬁgured in the link station's

lsap_address

parameter) matches the remote system's local SAP.

Step 3. If the link station is an Ethernet link station then ensure that the LAN

type matches that used by the remote system.

Check the link station conﬁguration in one of the following ways:

• If you are using the Motif administration program, then zoom on the

link station.

• If you are using the command-line administration program then issue

the snapadmin query_ls command to view the link station

conﬁguration.

Check that the HP-UX Client Can See its Servers

First, refer to the chapter on managing clients in the HP-UX SNAplus2

Administration Guide.

A client must be connected to a server before it can operate. Check that

the client can see its server by issuing a snapadmin query_node_all

command from the client. (Refer to HP-UX SNAplus2 Administration

Command Reference for more information about this command.)

The following sections describe the different responses to this command,

and the actions that you should take.

List of Active Nodes Displayed

If the snapadmin query_node_all reports a list of all the active nodes

(that is, servers) then the client is able to see the servers and this is not

the cause of the problem.

If one or more nodes is not in the list of active nodes, then ensure that

each of these nodes is active. Refer to “Check That the Local SNA Node

Is Active” for more information.

If each node is active, but the list of active nodes displayed is still

incomplete, then there may be a problem with the underlying TCP/IP

network that SNAplus2 uses for its client/server communication.

To enable the client to continue to operate even when its server is

inactive, you can conﬁgure backup servers or add more servers that the