HP-UX SNAplus2 R7 General Information
Introducing SNAplus2
Benefits Provided by SNAplus2
MDS-NMVT can work as a centralized, distributed, or hierarchical management scheme. It is based on a
focal point/entry point architecture that gives you a high degree of flexibility.
Focal points are control nodes that manage the network according to the data they collect from entry points
(management applications that reside on all other nodes in the network).
• In centralized management, a single focal point acts as a control point for the entire network.
• In distributed management, several focal points share in managing the network.
• In hierarchical management, focal points are nested according to function.
MDS-NMVT can thus be adapted to manage host-mediated, standard APPN, and very large APPN networks.
Simple Network Management Protocol-Management Information Base (SNMP-MIB)
SNMP-MIB, which is adapted for APPN networks from TCP/IP, is a distributed management service based
on an agent-manager architecture. This management scheme uses several components: one or more SNMP
agents, a manager, and a MIB database, all of which typically reside on different nodes. The manager and
agent communicate with each other by using the SNMP protocol.
• An SNMP agent is a process that runs on and monitors the status of the system being managed. The
agent maintains a MIB database for that system.
• The manager (an application) queries the agent for MIB information and processes the response. The
manager can also receive unsolicited data (SNMP traps) from the agent.
• APPN network managers can use APPN SNMP-MIB to gather information to analyze the network and
correct problems. SNAplus2 uses agent software that supports the APPN MIB. For more information
about the APPN MIB, refer to
HP-UX SNAplus2 Administration Guide.
Service point command facility (SPCF)
A NetView operator can use SPCF to issue SNAplus2 configuration and administration commands from the
NetView terminal, to control the SNAplus2 node remotely.
UNIX command facility (UCF)
A NetView operator can use UCF to issue HP-UX commands on the SNAplus2 computer from the NetView
terminal.
2.3.10 Reliability, Availability, and Serviceability
To help you to maintain reliable system operation, SNAplus2 provides a range of problem-diagnosis tools and
display functions.
• Problem-diagnosis tools are available to help you during the different stages of configuration and operation.
They include the following:
• Status and error messages to guide you through configuration routines and system operation
• Service logs for collecting network error and failure information
• Trace facilities for gathering and formatting detailed problem information
• A data collection utility for gathering problem data to provide to service personnel
• Display functions provide you with status information about:
• LU-LU sessions
• APPN intermediate sessions
• Active links
• APPN topology databases, which store link information
29