Network Management Presentation HP Openview

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Network Management PresentationHP Openview

• Christopher Scott
• December 10, 2004

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OpenView

• Network Node Manager
• (NNM)

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OpenViewNetwork Node Manager

• Overview
• How it works
• Capabilities
• Technical and business benefits
• Summary

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Network Node Manager
Overview

• Network management tool
• Proactive network management
• Provides a solid solution for managing dynamic IP
  networks
• NNM is starting point for implementing a network
  management solution

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What does it do?

• Dynamically maps out your network
• Collects critical information about you network
• Correlates the information it collect
• Maintains a relational database
• Provides report generation

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How does it work?

• NNM uses several protocols to maintain
  communication with each managed device
• SNMPv1, SNMPv2
• TCP/IP, IPX
• UDP
• ICMP
• ARP/RARP

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SNMP Network Mgmt Model

• Manager
• A manager is an application that executes network
  management operations
• The manager monitors and controls agent systems
• SNMP agent
• Resides on a managed node
• An application that acts on behalf of an object
• Object
• Anything that will be managed
• Host, router, hub, application, database

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Manager-Agent Communication through SNMP
SNMP Request with Community Name
Retrieve (get) management information
Manager
Agent
MIB
SNMP Replies
Alter (set) management information
SNMP Traps
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Automatic Discovery and Layout

• All IP and Level 2 devices on the network are
  automatically discovered and mapped
• IPX devices are also discovered
• Map is a logical representation of your network
• Automatic discovery may take several hours or
  even overnight

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Example of network discovery and layout
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Network Discovery (contd)

• NNM discovers the following objects and put them
  on the default map
• Internet-level submap
• IP networks, gateways, routers and multihomed
  workstations
• Network-level submaps
• Bus, star and ring segments
• Segment-level submaps
• Hosts, gateways, routers, switches, hubs, and
  bridges
• Node-level submaps
• Network interface cards

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Typical Submap Hierarchy
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Distributed Internet Discovery and Monitoring
(DIDM)

• Large networks may require this distributed model
• Spreads discovery, monitoring, and polling across
  several Network Node Managers acting as
  collection stations
• Collection stations monitor some portion of the
  network and inform the management station of
  changes

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DIDM (contd)

• NNM
• can serve as a management station, a collection
  station, or both
• Management stations
• Role is to make the network management
  functionality available to the users
• Collection stations
• Role is to be a collection point in the overall
  network management system

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Simplified Distribution Model for NNM
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Management Consoles

• NNM gives the ability to have 15 to 25 operators
  simultaneously monitoring the network
• Operators can share one map , or have individual
  maps
• Individual maps create area of responsibility on
  the network for each operator
• More efficient in large networks

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Multiple Management Consoles
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Sample map views
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Sample map views
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Sample map views
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Challenges to IT Service Management

• User dissatisfaction / increased user
  expectations
• Deploying network services, while maintaining
  productivity
• Keeping networks and systems operational 24/7/365
• Producing faster, more predictable response times
• Integrating and managing complex systems in a
  multi-vendor environment

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Technical benefits

• Network Management can help achieve those goals
  by
• Fault and Problem Management
• Reduced downtime of network systems and devices
• Quick detection and correction of network
  problems
• Performance Management
• Ability to monitor data to anticipate problems
• Log information for historical analysis

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Business Benefits

• Network Management can help achieve those goals
  through
• Accounting Management
• Obtains statistical information on network use
• Track individual resource utilization
• Security Management
• Protects the network and its systems from
  unauthorized access, use, and harm

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Summary

• hp OpenView NNM is a robust network management
  platform that can provide a graphical look into
  your network and provide many benefits like Fault
  and Problem management, Performance management,
  etc
• Makes network management proactive instead of
  reactive
• NNM uses SNMP to discover devices on the network
  and automatically manage and monitor them
• NNM can play an integral role in achieving both
  the technical and business goals of an
  organization