Mục tiêu của khóa luận dựa trên cơ sở khảo sát về tình hình thực tế về hệ thống mạng VNUNet và nhận thấy nhu cầu cần một chương trình quản lý giám sát một cách chuyên nghiệp cho hệ thống mạng VNUNet.Khóa luận trình bày những tìm hiểu về việc quản lý giám sát một hệ thống mạng lớn như của các tập đoàn hoặc các trường đại học bằng phần mềm HP Openview Network Node Manager.
Research objectives: Studying and evaluation of active queue management mechanisms to find out the advantages and disadvantages of each mechanism, in order to classify and evaluate application performance for mechanisms and using fuzzy logic to improve active queue management mechanism; the results of the first goals is to perform study motivation first and will be the foundation for the theory and simulation improvements of the thesis.
This chapter presents an overview of IT service management and what it
means to the future of network management. It also describes the basic
functions of network management, and how Network Node Manager and
other HP OpenView products address those functions.
Networking Standards and the OSI Model
Identify organizations that set standards for networking.
Describe the purpose of the OSI Model and each of its layers
Explain specific functions belonging to each OSI Model layer
Understand how two network nodes communicate through the OSI model
Discuss the structure and purpose of data packets and frames.
Describe the two types of addressing covered by the OSI Model.
– Frank.Eyermann@unibw.de – Information Systems Laboratory – Faculty for Computer Science – Universität der Bundeswehr, Munich
.Exercise 1.1: ns-2’s Hello World Create the following scenario
– Two nodes, link in between – Sender agent: Agent/UDP – Receiver agent: Agent/Null – Connect agents – Data source.
– Information Systems Laboratory
– Faculty for Computer Science
– Universität der Bundeswehr, Munich
Create the following scenario
– Two nodes, link in between
– Sender agent: Agent/UDP
– Receiver agent: Agent/Null
– Connect agents
– Data source: Application/Traffic/CBR
– Run from 0.5 to 4.5 sec, finish at 5.0 sec
Multiprotocol Label Switching
Multiprotocol Label Switching (MPLS) is a standards-approved technology for
speeding up network traffic flow and making it easier to manage. MPLS involves
setting up a specific path for a given sequence of packets, identified by a label put
in each packet, thus saving the time needed for a router to look up the address to
the next node to forward the packet to. MPLS is called multiprotocol because it
works with the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and
frame relay network protocols....
Wireless sensor nodes are small, embedded computing devices that interface with sensors/
actuators and communicate using short-range wireless transmitters. Such nodes act
autonomously, but cooperatively to form a logical network, in which data packets are routed
hop-by-hop towards management nodes, typically called sinks or base stations. A Wireless
Sensor Network (WSN) comprises of a potentially large set of nodes that may be distributed
over a wide geographical area, indoor or outdoor
1. Private Network: Đây là 1 dạng hệ thống mạng LAN riêng biệt sử dụng địa chỉ IP để chia sẻ dữ liệu giữa các node được kết nối với nhau. Trong mô hình dạng này thì các ứng dụng và cổng dữ liệu (được sử dụng để quản lý những giao thức kết nối) được thiết kế riêng để tăng tính bảo mật.
Packet snooping can be detected in certain instances, but it usually occurs without anyone
knowing. For packet snooping to occur, a device must be inserted between the sending and
receiving machines. This task is more difﬁcult with point-to-point technologies such as
serial line connections, but it can be fairly easy with shared media environments. If hubs or
concentrators are used, it can be relatively easy to insert a new node. However, some
devices are coming out with features that remember MAC addresses and can detect whether
a new node is on the network.
The ease or difﬁculty of packet snooping (also known as eavesdropping) on networks
depends largely on the technology implemented. Shared media networks are particularly
susceptible to eavesdropping because this type of network transmits packets everywhere
along the network as they travel from the origin to the ﬁnal destination. When concentrators
or hubs are used in a shared media environment (such as FDDI, 10BASE-T, or 100-Mbps
Ethernet), it can be fairly easy to insert a new node with packet-capturing capability and
then snoop the trafﬁc on the network.
The main contents of the chapter consist of the following: Developing the project network, from work package to network, constructing a project network, activity-on-node (AON) fundamentals, network computation process, using the forward and backward pass information, level of detail for activities,...
Chapter 6 - Developing a project plan. The main contents of the chapter consist of the following: Developing the project network, from work package to network, constructing a project network, activity-on-node (AON) fundamentals, network computation process, using the forward and backward pass information, level of detail for activities,...
This chapter presents the following content: Developing the project schedule, from work package to network, activity-on-node (AON) fundamentals, sequence the activities, add the durations, carry out the forward pass, identify the critical path, extended network techniques to come closer to reality,...
Core support: CPU, Memory, Process.
Management , Interrupt/Exception Handling etc.
Dynamically Loadable Kernel Modules.
User Mode Access to kernel facilities.
System Calls and Signals.
Filesystem Device Nodes.
Are not accessed through a device node but instead are accessed.
through a “network interface” abstraction.
Dynamicity of participants: Some P2P systems, such as , assume a ﬁxed set of nodes in the system. However,
one of the greatest potential strengths of P2P systems is when they eschew reliance on dedicated infrastructure and
allow peers to leave the system at will. Even under these conditions, participants typically have broadly varying
availability characteristics. Some peers are akin to servers: their membership in the system stays largely static. Others
have much more dynamic membership, joining and leaving the system at will.
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Distributed and Collaborative Node Mobility Management for Dynamic Coverage Improvement in Hybrid Sensor Networks
This Chapter addresses SMEs that are qualified to perform complementary manufacturing
activities as producers, subcontractors or suppliers. They are used to participate in different
supply chains taking the form of networks where every node manages in turn its own
supply chain. More precisely, there are at least three main models (or viewpoints) to take
Medium-large company and its supply chain members. When issuing an order the
medium-large company should select the most convenient supplier depending on
factors like cost, lead time, capacity, supply conditions, distance.
Describe the Project Management Body of Knowledge (PMBOK) area called project cost management. Develop a Gantt chart.
Develop a project network diagram using the activity on the node (AON) technique. Identify a project’s critical path and explain why it must be controlled and managed. Develop a PERT diagram.
ADC modular solutions supply everything you need to
build and operate a GSM network and provide services.
You can create complete networks including the radio
access nodes and the switching core network. An ADC
network solution also includes built-in databases, service
platforms, and management nodes.