Matakuliah
Tahun
Versi
: H0372/Manajemen Jaringan
: 2005
: 1/0
Pertemuan 13
Isu Manajemen Jaringan
1
Learning Outcomes
Pada akhir pertemuan ini, diharapkan mahasiswa
akan mampu :
• Menunjukkan isu yang masih ada pada manajemen
jaringan
2
Outline Materi
• Isu Bisnis
• Isu Teknologi
• Isu operasional
3
Network Management Tools
• Assist people to work on networks
• Assist people to manage networks
• Assist network users
The tools are used for monitoring and
manage the network
4
NOC Tool Categories
Network
Management
Tools
Functional
Examples :
Alarm
Manager
Security
Traffic
Network
Resources /
Components
Examples:
Bridge
Ethernet
IP
NFS
Mechanism
Examples:
NMS
Ping
SNMP
X
Operating
Environment
Examples:
DOS
Windows NT
Sun
Unix
Acquisition
Free
Library
Sourcelib
• Developed by IETF Working Group on NOC Tools
5
Network Software Tools
• Status monitoring tools
• Traffic monitoring tools
• Route monitoring tools
6
Protocol Analyzer
Data
Capture
Device
PROTOCOL
ANALYZER
Raw data transferred on
Modem / WAN or LAN Link
LAN
• Analyzes data packets on any transmission line including
LAN
• Measurements made locally or remotely
• Probe (data capture device) captures data and transfers to the
protocol analyzer (no storage)
• Data link between probe and protocol analyzer either dial-up
or dedicated link or LAN
• Protocol analyzer analyzes data at all protocol levels
7
MRTG
• Multi Router Traffic Grouper (Oeticker
and Rand)
• Generates graphic presentation of traffic
on Web
• Daily view
• Weekly view
• Monthly view
• Yearly view
8
Network Monitoring
•
•
•
•
By polling
By traps
Failure indicated by pinging or traps
Ping frequency optimized for network load vs.
quickness of detection
• Trap messages: linkdown, linkUp, coldStart,
warmStart, etc.
• Network topology discovered by auto-discovery
• Monitoring done at multiple levels - “drilling”
9
Network Configuration
• Configure agents
• Configure management systems
• Community administration parameters
• Community name
• MIB view
• Trap targets
• Auto-discovery : Scope
10
NMS Components
Hardware
Operating System
Core Application Services
Common SNMP Services
Vendor Specific NMS Services
11
SNMP Network Management Tools
• SNMP command tools
• MIB Walk
• snmpsniff
12
SNMP Command Tools
•
•
•
•
•
•
•
snmptest
snmpget
snmpgetnext
snmpset
snmptrap
snmpwalk
snmpnetstat
• Test tool is an interactive tool to get values of several
managed objects, one at a time.
• Get, Get-next and Set are the SNMP commands that we
learned under SNMP architecture / messages. Execution of
these will return an SNMP Response message.
• SNMPWalk uses snmpgetnext to trace the entire MIB.
• Network status command is used to test the status of
network connections of a host.
13
Enterprise Management
• Management of data transport
• IBM Netview, Sun Solstice, HP OpenView,
Cabletron Spectrum
• Systems management
• CA Unicenter and Tivoli TME
• Network and systems management
• Partnerships
•Telecommunications management
• TMN, Operations systems
• Service management and policy management
14
Commercial NMS
• Enterprise NMS
• Hewlett-Packard OpenView
• Sun SunNet Manager
• IBM Netview
• Low End NMS
• SNMPc
• System & Network Management
• Computer Associates Unicenter TNG
• Tivoli TME / Netview
15
Commercial NMS
• Low End NMS
• Enterprise NMS
•Centralized
•Distributed
• System and Network Management
16
HP OpenView Platform
GUI
API
Management
Applications
API
Management
Services
Managed
Objects
• Open, modular, and distributed architecture
• Object oriented design, Open API-based architecture
17