Lecture Slides
... Each node generates independent data Any node can communicate with any other. No centralized controller (self-configuring) Data transmitted in (short) packets Links typically symmetric. Nodes may be mobile and/or power constrained. Typically a large number of nodes ...
... Each node generates independent data Any node can communicate with any other. No centralized controller (self-configuring) Data transmitted in (short) packets Links typically symmetric. Nodes may be mobile and/or power constrained. Typically a large number of nodes ...
Next Generation Networks
... Introduction to next generation networks: Communicating in the new Era, New Era of Networking, Technologies influencing change, IP Everywhere, Optical fiber anywhere, wireless access, building blocks for NGN, IP Networks, VOIP, Multi service Flexible Networks architecture. VPNs, Optical Networks, Wi ...
... Introduction to next generation networks: Communicating in the new Era, New Era of Networking, Technologies influencing change, IP Everywhere, Optical fiber anywhere, wireless access, building blocks for NGN, IP Networks, VOIP, Multi service Flexible Networks architecture. VPNs, Optical Networks, Wi ...
Document
... While the definition itself is controversial, generally a peer-topeer (often referred to as P2P) computer network refers to any network that does not have fixed clients and servers, but a number of peer nodes that function as both clients and servers to the other nodes on the network. This model of ...
... While the definition itself is controversial, generally a peer-topeer (often referred to as P2P) computer network refers to any network that does not have fixed clients and servers, but a number of peer nodes that function as both clients and servers to the other nodes on the network. This model of ...
Making Invisible Work Visible: Using Social Network Analysis to
... • Nonhierarchical organizations in which communication occurs regardless of level are often more profitable • Two-way communication and encouragement of communication can be more important than sending out more communications from higher levels of a hierarchy • The most important factor is fit with ...
... • Nonhierarchical organizations in which communication occurs regardless of level are often more profitable • Two-way communication and encouragement of communication can be more important than sending out more communications from higher levels of a hierarchy • The most important factor is fit with ...
Application Layer (Email, DNS, P2P)
... • user registers its IP address with central server when it comes online • user contacts central server to find IP addresses of buddies ...
... • user registers its IP address with central server when it comes online • user contacts central server to find IP addresses of buddies ...
Chapter 11: Approaches to Networking
... Establishes on-demand connections Maintains connection while needed Breaks down connection on completion ...
... Establishes on-demand connections Maintains connection while needed Breaks down connection on completion ...
Telecom
... individual network segments. These paths are called routes, and devices like routers and bridges keep tables, which define how to get to a particular computer on the network. When a packet arrives, the router/bridge will look at the destination address of the packet, and determine which network se ...
... individual network segments. These paths are called routes, and devices like routers and bridges keep tables, which define how to get to a particular computer on the network. When a packet arrives, the router/bridge will look at the destination address of the packet, and determine which network se ...
Implementing Database Coordination in P2P Networks *
... certain topic – e.g., group topic – “Tourism in Trentino”, “Real Estate in Scotland”, etc – each Interest Group has group manager (GM) which helps in maintenance of the group ...
... certain topic – e.g., group topic – “Tourism in Trentino”, “Real Estate in Scotland”, etc – each Interest Group has group manager (GM) which helps in maintenance of the group ...
Problem Statement
... – iPAD: 256M memory, 16G storage – iPhone(X generation): 20M available memory in practice – Current P2P Streaming occupation:~100M memory and ~1G storage ...
... – iPAD: 256M memory, 16G storage – iPhone(X generation): 20M available memory in practice – Current P2P Streaming occupation:~100M memory and ~1G storage ...
Networks
... should have identical workstations to make maintenance simpler but this does not often happen as existing workstation have to be added to a newer network. Replacing all workstations would be too expensive for most organisations and time for installation needs to be staggered so the company can conti ...
... should have identical workstations to make maintenance simpler but this does not often happen as existing workstation have to be added to a newer network. Replacing all workstations would be too expensive for most organisations and time for installation needs to be staggered so the company can conti ...
3rd Edition: Chapter 2
... permanent IP address server examples: www.bucknell.edu, www.google.com ...
... permanent IP address server examples: www.bucknell.edu, www.google.com ...
emulab.net: A Network Emulation and
... Flexible, extensible, powerful allocation algorithm – Matches desired “virtual” topology to currently available physical resources ...
... Flexible, extensible, powerful allocation algorithm – Matches desired “virtual” topology to currently available physical resources ...
Chapter Answers to end-of
... 2. Explain the difference between peer-to-peer and client/server networks. In a peer-to-peer network, all the computers on the network are equals, and there is no file server. Each computer user decides which, if any, files will be accessible to other users on the network. Although peer-topeer netwo ...
... 2. Explain the difference between peer-to-peer and client/server networks. In a peer-to-peer network, all the computers on the network are equals, and there is no file server. Each computer user decides which, if any, files will be accessible to other users on the network. Although peer-topeer netwo ...
PPT - University of Cincinnati
... every shared file is accompanied by a meta data these files are encoded in XML and comprise of various fields, organized according to their order of significance these fields used for obtaining different levels of ...
... every shared file is accompanied by a meta data these files are encoded in XML and comprise of various fields, organized according to their order of significance these fields used for obtaining different levels of ...
Chapter 11 Network Fundamentals
... – Non-realtime variable bit rate (nrt-VBR) for airline reservation or financial transaction – Available bit rate (ABR) for LAN-to-LAN – Unspecified bit rate (UBR) for TCP-based traffic ...
... – Non-realtime variable bit rate (nrt-VBR) for airline reservation or financial transaction – Available bit rate (ABR) for LAN-to-LAN – Unspecified bit rate (UBR) for TCP-based traffic ...
Networks..
... – Star-consists of a central host computer connected to a number of smaller computers or terminals – Ring-each computer on a network can communicate directly with another computer-does not rely on a central host computer. – Bus-links a number of computers by a single circuit made of twisted wire, co ...
... – Star-consists of a central host computer connected to a number of smaller computers or terminals – Ring-each computer on a network can communicate directly with another computer-does not rely on a central host computer. – Bus-links a number of computers by a single circuit made of twisted wire, co ...
A Survey of Active Network Research
... •Despite increasing the amount of processing at nodes, Active network will lead to improved performance. i.e. Reduced throughput and increasing latency appear to degrade the performance, they may actually improve performance because of reduce demand of bandwidth at endpoints, network congestion. •Ne ...
... •Despite increasing the amount of processing at nodes, Active network will lead to improved performance. i.e. Reduced throughput and increasing latency appear to degrade the performance, they may actually improve performance because of reduce demand of bandwidth at endpoints, network congestion. •Ne ...
Systems Area: OS and Networking
... Gnutella nodes form an overlay network - each node has a few “neighbors” in a virtual network - virtual link: node knows other’s IP address - do app-level “networking” on this graph ...
... Gnutella nodes form an overlay network - each node has a few “neighbors” in a virtual network - virtual link: node knows other’s IP address - do app-level “networking” on this graph ...
SI 614 Community structure in networks Lecture 17 School of Information
... School of Information University of Michigan ...
... School of Information University of Michigan ...
Peer-to-Peer Overlay Networks
... mesh based on some multicast routing protocols, e.g. DVMRP. – Compared to tree only design, mesh-tree approach is more complex. – it has the advantages of avoiding replicating group management functions across multiple (per-source) trees, providing more resilience to failure of members, leveraging o ...
... mesh based on some multicast routing protocols, e.g. DVMRP. – Compared to tree only design, mesh-tree approach is more complex. – it has the advantages of avoiding replicating group management functions across multiple (per-source) trees, providing more resilience to failure of members, leveraging o ...
network jeopardy
... networks. The node in the highest point in the hierarchy – usually the server – controls the network. A. Why is a tree topology? ...
... networks. The node in the highest point in the hierarchy – usually the server – controls the network. A. Why is a tree topology? ...
document
... All the nodes offer the same services and follow the same behavior. Nodes act both as servers and as clients. There are no nodes with a special responsibility to monitor or supervise the network behavior. P2P networks for file sharing involves two phases: 1 Search of the peers where the requested fi ...
... All the nodes offer the same services and follow the same behavior. Nodes act both as servers and as clients. There are no nodes with a special responsibility to monitor or supervise the network behavior. P2P networks for file sharing involves two phases: 1 Search of the peers where the requested fi ...
Online Appendix - Iñaki Aldasoro
... The density of a network is one of the main characteristics used to assess its topology. Density captures the proportion of actually existing connections to all possible connections that could exist in the network. Denoting by C the number of all actual connections (i.e. how many non-zero elements a ...
... The density of a network is one of the main characteristics used to assess its topology. Density captures the proportion of actually existing connections to all possible connections that could exist in the network. Denoting by C the number of all actual connections (i.e. how many non-zero elements a ...
Peer-to-peer
Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or work loads between peers. Peers are equally privileged, equipotent participants in the application. They are said to form a peer-to-peer network of nodes.Peers make a portion of their resources, such as processing power, disk storage or network bandwidth, directly available to other network participants, without the need for central coordination by servers or stable hosts. Peers are both suppliers and consumers of resources, in contrast to the traditional client-server model in which the consumption and supply of resources is divided. Emerging collaborative P2P systems are going beyond the era of peers doing similar things while sharing resources, and are looking for diverse peers that can bring in unique resources and capabilities to a virtual community thereby empowering it to engage in greater tasks beyond those that can be accomplished by individual peers, yet that are beneficial to all the peers.While P2P systems had previously been used in many application domains, the architecture was popularized by the file sharing system Napster, originally released in 1999. The concept has inspired new structures and philosophies in many areas of human interaction. In such social contexts, peer-to-peer as a meme refers to the egalitarian social networking that has emerged throughout society, enabled by Internet technologies in general.