Publications

Detailed Information

A mediator for Resolving the Network Management Issues Between the IP Layer and the Transport Layer : 통신망내에서 IP계층과 전송계층간 네트워크 관리 이슈 및 중재에관한 연구

DC Field Value Language
dc.contributor.advisorProfessor Jorn Altmann-
dc.contributor.authorMohammadHassanAhmadOsmani-
dc.date.accessioned2017-07-13T08:54:24Z-
dc.date.available2017-07-13T08:54:24Z-
dc.date.issued2012-08-
dc.identifier.other000000004350-
dc.identifier.urihttps://hdl.handle.net/10371/119924-
dc.description학위논문 (박사)-- 서울대학교 대학원 : 협동과정 기술경영·경제·정책전공, 2012. 8. Professor Jorn Altmann.-
dc.description.abstract향후 10년 간 지능적이고 유연한 구조의 인터넷이 필요한 광대역폭의 어플리
케이션이 등장할 것에 대해 통신망 사업자와 통신장비 사업자 사이에 공감대
가 형성되어 있다. 인터넷 프로토콜 (IP)을 광통시망에 적용하는 것은 통신망
전체의 성능을 향상할 뿐만 아니라 자본지출 및 운영지출을 감소시킬 것으로
기대된다. 자동화된 통신망 관리 시스템은 차세대 어플리케이션의 수요를 수
용할 것이고 통신망 상에서 새로운 서비스가 작동하는 것을 허용할 것이다.

그러나 아쉽게도 이러한 전망은 실무선에서 현실화되지 못하고 있다. IP 사업
부와 전송 사업부가 분리된 현재의 이동통신 사업자의 기업구조 하에서 두 부
문의 통신망 관리 체계도 서로 이반되어 있다. 그리하여 기본적인 서비스를
제공하는 데 필요한 운영 조차도 자동화하기가 힘들고, 여러 부서의 인력이
함께 관여해야 시행되는 실정이다. 이러한 이유로, 이동통신 사업자는 현재의
수동 체계에서 벗어나는 방법을 모색 중이다.

현재의 분리된 IP 네트워크와 전송 네트워크가 직면한 이 문제를 해결하기 위
하여, IETF와 ITU는 각각 표준화된 제어단계를 제시하였다. 이론상으로는,
ITU-T와 IETF가 표준화한 ASON/GMPLS 제어단계 체계는 통신망 제어 및 관리와
관련된 문제를 해결하는 것으로 보이지만, 실제로 IP 계층과 전송 계층의 통
합된 관리와 관련된 문제가 해결된 것은 아니다. 나아가서, 앞의 두 표준화
기구가 제안한 방식은 실무선에 있는 통신망 관리자에게 적합하지 않다.

이 졸업논문에서, 저자는 새로운 기술을 이식하는 데 드는 비용과 그 기술의
효율성을 추정하는 비용 모형을 소개하고, 다입력 다출력 중계자 모형을 제안
한다. 나아가서, 저자는 관리 업무의 통합과 자동화를 진흥하기 위한
IP/MPLS 계층과 전송 계층 사이의 중계자 모형 구조를 제안하고, 인터넷 생태
계 내에서의 가치 사슬에 대한 중계자 모형의 영향을 평가하며, 중계자 모형
을 통해 SDH/SONET 통신망에서 다층 경로를 계산할 수 있음을 시연하는 알고
리즘을제안한다.
-
dc.description.abstractThere is a wide consensus among telecom vendors and telecom operators, that next decade will be evidence of bandwidth incentive applications that need an intelligent and flexible Internet architecture. The Internet Protocol (IP) over the optical network solutions expected to reduce capital expenditure and the operational expenditure, while improving overall network performance. Central to this promise is an autonomic network management system is essential to address the future applications demands and to allow new services to be run over the network.
Unfortunately, practice lags far behind this promise. The current schism between the IP part and the transport part of telecommunication companies isolated the two Network Management Systems (NMSs). Thus, even a basic operation, such as service provisioning, require long time and multiple human intervention. As a result, carriers are seeking ways to reduce the dependency on manual processes.
In a environment where the IP network, and the transport network management systems are isolated, even simple operations, such as provisioning a VPN, require human-assisted configurations which is error prone, and time consuming. As a result, carriers are in quest of ways to alleviate the dependence on manual processes.
With the intention of addressing the problem, IETF and the ITU introduced two well-known standardized control plane frameworks. While the ASON/GMPLS control plane framework, standardized by ITU-T and IETF, theoretically address the network management issues, the coordination of management task between the two layers remains unsolved. Furthermore, practice shows that the solutions proposed by the standardization organizations are not desirable to the network operators.
In this dissertation, we introduce a cost model to estimate the new technology deployment cost and its efficiency in networks which is up and running. In addition we propose architecture for a mediator model between the IP/MPLS and the transport layers to facilitate the coordination and automation of management tasks, evaluate the mediator models impact on the value creation chain of the Internet ecosystem, and propose an algorithm to demonstrate the ability of the mediator model for computing the multi-layer paths for SDH/SONET networks.
-
dc.description.tableofcontentsAbstract

Table of Content

List of Figures and Tables


Chapter 1. Overall Introduction
1.1. Background 1
1.2. Communication Networks Interoperability Factors 4
1.2.1. Switching Technology Differences 4
1.2.1.1. Circuit Switching 5
1.2.1.2. Packet Switching 6
1.2.2. Communication Protocol Differences 7
1.2.2.1. Simple Network Management Protocol 7
1.2.2.2. Transaction Language 1 8
1.2.3. Multi-Vendor Technology Usage 9
1.2.4. Isolated Islands 9
1.3. Problem Description and Research Motivation 11
1.4. Research Questions 12
1.5. Research Contribution 14
1.6. Dissertation Outline 15
Chapter 2. Literature Review
2.1. Network Management Functions 16
2.2. Standardization Organization Efforts 17
2.2.1. IETF 18
2.2.2. ITU-T 21
2.2.3. OIF 23
2.2.4. ITU-T/IETF 24
2.3. Research Support Organization Efforts 25
2.3.1. DRAGON Project 25
2.3.2. G-Lambda Project 26
2.3.3. BRUW Project 27
2.3.4. IPsphere Project 28
2.3.5. MUPBED Project 29
2.3.6. NOBEL Project 30
2.3.7. ODIN Project 31
2.3.8. OSCARS Project 31
2.3.9. NOBEL2 Project 32
2.3.10. STRONGEST 32
2.4. Telecommunication Industry Vendors Efforts 33
2.4.1. Cisco Efforts 33
2.4.2 Ericsson Efforts 33
2.4.3 Nokia Siemens and Juniper Efforts 34

Chapter 3. Techno-Economic Evaluation of Proposed Control Plane Framework
3.1. Introduction 35
3.2. Literature Review 36
3.3. Telecommunication Operators Expenditure 41
3.3.1. Telecom Operators OPEXs 41
3.3.2. Telecom Operators CAPEXs 45
3.4. Telecom Industry Specific Characteristics 46
3.5. Cost Estimation Model 48
3.6. GMPLS Deployment Cost and its Benefits 51
3.6.1. GMPLS Deployment Cost 51
3.6.2. GMPLS Cost Benefits Analysis 57
3.6.2.1. Previous Studies 57
3.6.2.2. Cost Benefit Estimation Approach 59
3.6.2.3. GMPLS SP Cost Versus Traditional Network SPC 61
3.6.2.3.1. Traditional Service Provisioning Cost 64
3.6.2.3.2. GMPLS Enabled Networks SP Cost 66
3.7. Chapter Summary 69

Chapter 4. Proposed Architecture for a Mediator Model Between the IP and the Transport Layers.
4.1. Introduction 71
4.2. Coordination Based Approach 73
4.3. Mediator Model Concept (ONE adapter) 75
4.3.1. Extended Mediator Model Architecture 77
4.3.2. Mediator Model Service Area 80
4.3.3. Mediator Model Interconnection 81 4.3.4. VPN Provisioning Use Case 83
4.4. Chapter Summary 87



Chapter 5. Mediator Model Impact on the Value Creation Activities of Transport Service Providers
5.1. Introduction 88
5.2. Literature Review 89
5.3. Network Service Providers, their Relationships and Services 91
5.3.1. Network Service Businesses 92
5.3.2. Internet Ecosystem Market Players 93
5.3.2.1. Existing Relationships 95
5.4. Internet Ecosystem Players Value Creation Model 98
5.5. Case Study 106
5.5.1. MM Impact on the Value Creation Model of NSP 107
5.5.2. New Players Value Creation Model 107
5.5.3. Internet Ecosystem Value Creation Model 110
5.6. Chapter Summary 111

Chapter 6. A User Preference Based Path Computation Algorithm for SDH/SONET Networks
6.1. Introduction 113
6.2. Literature Review 116
6.3. User Preference-Based Enterprise PCA, and SDH/SONET 118
6.3.1. Enterprise PCE Requirements 118
6.3.2. SDH/SONET Technology Specific Requirements 119
6.4. Constraint Based Path Computation 120
6.5. Proposed PC Algorithm 121
6.6. Scenario and Link Capacity 124
6.6.1. Simulation Tool and Simulation Algorithm 125
6.6.1.1 Algorithm Description 129
6.6.2. Simulation Variables 131
6.7. Algorithm Application on NSFnet. Model 132
6.7.1. NSF net. Topology Graph Simulation Result 138
6.8. Algorithm Application on European Network Model 144
6.8.1. European Network Model 144
6.8.2. EU Network Topology graph Simulation Result 147
6.9. Algorithm Application on German Network Model 152
6.9.1. German Network Model 152
6.9.2. German Network Simulation Result 154
6.10. Algorithm Performance Evaluation 160
6.11. Chapter Summary 162


Chapter 7. Over All Summary and Policy Implication
7.1. Overall Summary 166
7.2. Policy Implications 168
7.2.1. Policy Implication for Standardization Organizations 168
7.2.2. Policy Implication for the Transport Service Providers 169
-
dc.formatapplication/pdf-
dc.format.extent3287311 bytes-
dc.format.mediumapplication/pdf-
dc.language.isoen-
dc.publisher서울대학교 대학원-
dc.subjectTelecommunication Netowrk-
dc.subjectNetwork Management-
dc.subjectCoordination-
dc.titleA mediator for Resolving the Network Management Issues Between the IP Layer and the Transport Layer-
dc.title.alternative통신망내에서 IP계층과 전송계층간 네트워크 관리 이슈 및 중재에관한 연구-
dc.typeThesis-
dc.description.degreeDoctor-
dc.citation.pages194-
dc.contributor.affiliation공과대학 협동과정 기술경영·경제·정책전공-
dc.date.awarded2012-08-
Appears in Collections:
Files in This Item:

Altmetrics

Item View & Download Count

  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Share