NETWORK OPERATION MANAGEMENT WORKS CENTRE BANDUNG

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NETWORK OPERATION MANAGEMENT WORKS CENTRE BANDUNG
WELCOME YOUR HONOUR WORK CENTRE VISITORS in
BANDUNG
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NETWORK OPERATION MANAGEMENT WORKS CENTRE BANDUNG
OPERATING SYSTEM FAULT MANAGEMENT CAPACITY
MANAGEMENT NETWORK PERFORMANCE MANAGEMENT
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OPERATING SYSTEM TMN
HARDWARE EQUIPMENT PLANTS ON 100 SQUARE METERS
FLOOR SPACE SOFTWARE MORE THAN 10 APPLICATION
PROGRAMS WORK STATIONS FOR NOMs
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FAULT MANAGEMENT
SWITCH MANAGEMENT CENTRE (SMC) NEAX61E, EWSD,
5ESS, STP AND SSP TRANSPORT MANAGEMENT CENTRE
(TMC) RADIO, CABLE AND MULTIPLEXING SYSTEM
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CAPACITY MANAGEMENT
ENSURES THAT NETWORK DESIGNS MEET PERFORMANCE
OBJECTIVES AT MINIMUM COST INCLUDES IN THIS
FUNCTION IS SERVICE PROVISIONING
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Network Performance Management
NETWORK PERFORMANCE MANAGEMENT ENSURES THAT
PERFORMANCE OBJECTIVES ARE MET UNDER ALL
CONDITIONS, INCLUDING LOAD SHIFTS AND FAILURES
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NETWORK ENGINEERING
NETWORK ENGINEERING is the process concerned
with engineering and optimizing the most
cost-effective design for routing calls within a
network based on load forecasts and other rules
to be employed
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NETWORK MANAGEMENT

• OBJECTIVE OF NETWORK MANAGEMENT
• To maximize the utilization of available
  facilities in order to meet customer services
  demands
• When necessary, to inhibit traffic that is
  causing abnormal conditions (faults).

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NETWORK MANAGEMENT

• BENEFITS OF NETWORK MANAGEMENT
• Increased revenue due to higher call completion
• More effective use of the network capabilities
• Improved service
• Improved customer / public relations

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NETWORK MANAGEMENT
DEFINITION OF REAL TIME NETWORK TRAFFIC MANAGEMENT
REAL TIME SURVEILLANCE AND CONTROL TO OPTIMIZE
THE CALL CARRYING CAPACITY OF A NETWORK UNDER
STRESS DUE TO TRAFFIC OVERLOAD OR FAILURE
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NETWORK MANAGEMENT HIERARCHY
Customer Information
Services Monitoring
Network Traffic Management PERF REAL TIME /
CONTINOUS
NETWORK OPERATION
Switching/Transmission Fault Management SMC / TMC
/ CADA
Maintenance UPNW / D / OSWF

Transmission path
Trunk Exchange
Local Exchange
Local Exchange
Trunk Exchange
PROVISIONING
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NETWORK MANAGEMENT
CUSTOMER / MARKET
CUSTOMER SERVICES AREA
NETWORK OPERATION
NETWORK CONSTRUCTION
NETWORK
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NETWORK PROBLEM
1. Failure of transmission system or Network
elements. 2. Planned outages of transmission
system and switches. 3. National Holidays. 4.
Sporting Event. 5. National disaster or political
crises. 6. Television and Radio announcements. 7.
Delay in the provisioning of additional circuit.
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Network Engineering Process
NETWORK ENGINEERING
NETWORK
TRAFFIC DATA
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Network Performance Management
FUNCTIONAL DIAGRAM
NETWORK
TABLE UPDATE
CONTROLS
5 MINUTES
1 WEEK
NETWORK PERFORMANCE MANAGEMENT (REAL TIME TRAFFIC
MANAGEMENT CONTROL)
TRAFFIC DATA
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NETWORK ROUTING, MANAGEMENT DESIGN
NETWORK
LOAD UNCERTAINTIES
TRAFFIC
FORECAST
ACTUAL
DATA
TRAFFIC
TRAFFIC
LOAD
CAPACITY CHANGES
LINK SIZE
(TRAFFIC TRANSPORT)
ROUTING TABLE UPDATE
ROUTING TABLES
(TRAFFIC TRANSPORT
CONTROLS
NETWORK MANAGEMENT / DESIGN
SECOND-MINUTES
REAL TIME TRAFFIC MANAGEMENT
DAYS-WEEKS
CAPACITY MANAGEMENT
(ROUTING DESIGN, CAPACITY DESIGN)
NETWORK PLANNING
(SWITCH PLANNING, TRANSPORT PLANNING)
MONTHS-YEARS
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REAL-TIME TRAFFIC MANAGEMENT
NETWORK
CONTROLS
DATA
TRANSPORT SWITCHES SIGNAL TRANSFER POINTS NETWORK
CONTROL POINTS
ALARMS CONTROL INFORMATION HARD TO REACH
DATA ROUTING INFORMATION LINK DATA SWITCH TO
SWITCH DATA
CODE CONTROLS CALL GAP CONTROLS CANCEL
CONTROLS LINK RESERVATION CONTROLS REROUTE
CONTROLS
NETWORK CONTROL INTERFACE
NETWORK SURVEILLANCE DISPLAY DRIVER
DATA COLLECTION ANALYSIS
COLOR GRAPHIC DISPLAY TERMINAL
WALLBOARD VIDEO GRAPHIC DISPLAY
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What to do in NMC

• Monitor traffic flow between DIVNET Switched
  Network and Non DIVNET Switched Network

• Implement Network Control to provide the best
  network performance when problem occur

• Analyze Network Performance

• Provide Company Performance Evaluation to telecom
  company rating the performance

• Manage Network Trouble Reporting

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Network Management Tools

• Real Time Network Management System that provides
  Surveillance, Analysis, Control and Monitoring of
  the switches
• Network Operations procedures Guidelines that
  ensure all task especially when there is a very
  complicated process
• Network Performance Evaluating System

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JOB DESCRIPTION NETWORK SURVEILLANCE

Roles

• Monitor traffic flow between DIVNET calls and
  between
• DIVNET exchanges to/from Non DIVNET Networks
• Implement Network Controls to optimize network
  performance when network anomalies occur

• Responsibilities
• Minimize call block in the long distant network
• Manage and optimizing the existing network
• Ensure the traffic data accuracy

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JOB DESCRIPTION NETWORK SURVEILLANCE

• Tasks
• Perform network surveillance for DIVNET network
  elements that comprise DIVNET switched network
• Analyze real time network management data to
  identify abnormal network condition
• Implement network control(s) when network
  anomalies occur that affect the performance of
  the network carrying DIVNET calls
• Generate network performance report

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JOB DESCRIPTION NETWORK SURVEILLANCE

• Tasks
• Isolate reefer network troubles to appropriate
  work group
• Supply data to network performance management
  group
• Serve as Central Point of Contact for information
  on the performance of the DIVNET Switched Network
• Develop preplans and coordinate activation of
  predefined activities. Includes mass calling
  events and special events that impact the
  performance of the DIVNET Switched Network

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ALTERNATE ROUTING IN A HIERARCHICAL NETWORK
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PEAK DAY -- SURVEILLANCE STRATEGY

1. MONITOR FINAL ROUTE OVERFLOW
2. MONITOR IDLE CAPACITY
3. MONITOR SWITCH HEALTH
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FACILITY FAILURE --SURVEILLANCE STRATEGY
SYMPTOMS ARE 1. HIGH OR 100
OVERFLOW ON SEVERAL ROUTES

LOOKS FOR 2. CONGESTION IN SWITCHES
3. IDLE CAPACITY AROUND FAILURE 4.
HARD - TO - REACH CODES 5. SOURCE OF
THE PROBLEM
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SWITCH FAILURE --SURVEILLANCE STRATEGY
SYMPTOMS ARE 1. MACHINE CONGESTION
MESSAGES 2. 100 OVERFLOW ON ROUTES
TO SWITCH 3. NO DATA FROM SWITCH

LOOKS FOR 4. CONGESTION IN OTHER
SWITCHES 5. IDLE CAPACITY AROUND
SWITCH 6. HARD - TO - REACH CODES
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FOCUSED OVERLOAD SURVEILLANCE STRATEGY
SYMPTOMS ARE 1. LOCALIZED SWITCH
CONGESTION 2. HIGH PRESSURE AND OVERFLOW INTO
REGION
LOOK FOR 3. CAUSE OF PROBLEM 4. HARD - TO
REACH CODES
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NATURAL DISASTER SURVEILLANCE STRATEGY
DISASTER AREA
SYMPTOMS ARE 1. REGIONAL SWITCH
CONGESTION 2. HIGH PRESSURE AND
OVERFLOW INTO REGION

LOOKS FOR 3. CAUSE OF PROBLEM 4. HARD -
TO - REACH CODES 5. IDLE CAPACITY
OUT OF REGION
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MASS CALLING
CONGESTED AREA
CALLED NUMBER
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NETWORK PERFORMANCE
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Definisi Mass Calling
Mass Calling adalah Adanya panggilan dari
sejumlah besar sentral menuju ke
Destinasi yang spesifik dalam waktu relatif
tidak lama sehingga dapat berakibat

• Lonjakan trafik dibeberapa Link
• Pelanggan lain dalam link yang sama tidak dapat
  mencapai Destinasi yang diinginkan
• Timbulnya Repeated Call yang dapat meng
  akibatkan Overload pada link atau sentral

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Karakteristik Mass Calling
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Kondisi Beban Normal
Origin
Destination
Normal load situation
Switch A
Switch B
Semua destinasi yang diinginkan dapat dicapat
tanpa ada keterbatasan .
Panggilan ke arah destinasi berlainan
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Kondisi Mass Calling

• Arus trafik ke arah Mass Calling semakin
  meningkat
• Call Completion Rate semakin menurun
• Arus trafik yang lain sebagian besar terhalangi
• Pendapatan menurun karena banyaknya trafik
  terhalangi

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Mass Call Control

• Mass Call Control
• Arus trafik ke arah Mass Calling dikurangi oleh
  Network Management
• Trafik yang lain sudah tidak terhalangi
• Trafik tersebut sudah dapat menghasilkan
  pendapatan

Origin
Destination
Mass call control
Call to different destinations
Call to Mass Called directory number
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Strategi Menghadapi Mass Calling
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Call Gap
Tujuan Menguranmgi trafik ke Mass Called
Directori untuk memberikan prioritas ke
arah call yang menghasilkan pendapatan
atau ke arah Disaster area untuk mengurangi
beban sentral. Mengamankan network agar
tidak overload (Dimensi network direncanakan
untuk kondisi normal) DIVNET (c.q. NNCC) telah
memiliki prosedur dalam penanganan Network
Problem (antara lain Mass Calling dengan
menggunakan Control Callgap)
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Definisi Network Disaster
Network Disaster adalah
Adanya panggilan dari sejumlah besar sentral
menuju ke area yang Congesti dalam waktu relatif
lama sehingga dapat berakibat

• Lonjakan trafk di beberapa link
• Pelanggan tidak dapat mencapai are yang
  diinginkan
• Timbulnya repeated call yang dapat mengakibatkan
• Overload pada link atau sentral atau bahkan
• dapat berdampak sentral breakdown

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Karakteristik Network Disaster
Penyebab Adanya huru-hara, Gempa, yang
terjadi pada suatu area Tanda-tanda
ASR rendah MHT pendek, call tinggi dan loss
call tinggi Durasi Lama gt 1 (satu)
hari Penanganan Dilakukan Callgap/Cancel To
agar sentral tidak breakdown Contoh
Network - Jakarta kelabu 13-14 Mei
1998 Disaster - Kerusuhan Ambon 19-20 Jan
1999
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Terima Kasih
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