slides
... Cluster-based Web system one Virtual IP address exposed to client one Virtual IP address shared by all servers ...
... Cluster-based Web system one Virtual IP address exposed to client one Virtual IP address shared by all servers ...
Epidemic Routing and Message Ferrying
... When the buffer of a node crosses a threshold, it starts to drop packets based on Pd and stops only after a lower threshold is crossed. ...
... When the buffer of a node crosses a threshold, it starts to drop packets based on Pd and stops only after a lower threshold is crossed. ...
Network+ Guide to Networks, Fourth Edition
... compatible motherboard, and manufacturer • Desktops or tower PCs may use an expansion card NIC, which must match the system’s bus • NICs are designed to be used with either wirebound or wireless connections • Firmware combines hardware and software • Repeaters are the connectivity devices that perfo ...
... compatible motherboard, and manufacturer • Desktops or tower PCs may use an expansion card NIC, which must match the system’s bus • NICs are designed to be used with either wirebound or wireless connections • Firmware combines hardware and software • Repeaters are the connectivity devices that perfo ...
Gnutella Network - University of Chicago
... display an unexpected degree of robustness: the ability of their nodes to communicate is unaffected even by extremely high failure rates. However, error tolerance comes at a high price: these networks are vulnerable to attacks, i.e., to the selection and removal of a few nodes that provide most of t ...
... display an unexpected degree of robustness: the ability of their nodes to communicate is unaffected even by extremely high failure rates. However, error tolerance comes at a high price: these networks are vulnerable to attacks, i.e., to the selection and removal of a few nodes that provide most of t ...
Wireless Sensor Networks Using A Delay-Aware
... then broadcast an invitation packet (IVP) to its neighbors within m. The IVP contains the level and the identity of the issuing SCH. A SCH will estimate the distances to its neighboring SCHs using the received signal strength of the IVPs received. 4) Once they are connected, the two SCHs and their b ...
... then broadcast an invitation packet (IVP) to its neighbors within m. The IVP contains the level and the identity of the issuing SCH. A SCH will estimate the distances to its neighboring SCHs using the received signal strength of the IVPs received. 4) Once they are connected, the two SCHs and their b ...
PPT - Department of Computer Science
... ◦ Voluntary system; the advertiser is under no obligation to abide by Do Not ...
... ◦ Voluntary system; the advertiser is under no obligation to abide by Do Not ...
Distributed Offline Load Balancing in MapReduce Networks
... Propose: a distributed algorithm, robustified ratio consensus such that each mapper finishes its allocated workload at approximately the same time as the other mappers allows mappers on heterogeneous nodes to operate asynchronously operates in directed networks mappers converge to proportional workl ...
... Propose: a distributed algorithm, robustified ratio consensus such that each mapper finishes its allocated workload at approximately the same time as the other mappers allows mappers on heterogeneous nodes to operate asynchronously operates in directed networks mappers converge to proportional workl ...
ppt - CSE Home
... Fundamental problems in building networks Design principles of proven value Common implementation technologies This is a systems course, not queuing theory, signals, or hardware design. We focus on networks, and a bit on applications or services that run on top of them (distributed systems). ...
... Fundamental problems in building networks Design principles of proven value Common implementation technologies This is a systems course, not queuing theory, signals, or hardware design. We focus on networks, and a bit on applications or services that run on top of them (distributed systems). ...
Server selection
... Properties of CFS • decentralized control – no administrative relationship between servers and publishers. • scalability – lookup uses space and messages at most logarithmic in the number of servers. • availability – client can retrieve data as long as at least one replica is reachable using the un ...
... Properties of CFS • decentralized control – no administrative relationship between servers and publishers. • scalability – lookup uses space and messages at most logarithmic in the number of servers. • availability – client can retrieve data as long as at least one replica is reachable using the un ...
Introduction - Petra Christian University
... • Links: coax cable, optical fiber… – point-to-point ...
... • Links: coax cable, optical fiber… – point-to-point ...
投影片 1
... terminates, all the marked nodes (clusterheads or gateways) form the k-CCS/k-CS. Theorem 2: All the clusterheads (and gateways) marked in CKA form a k-CS (k-CCS) of the networks. This algorithm can be easily extended to achieve k-coverage in O(k log3 n) time with high probability. A randomized clu ...
... terminates, all the marked nodes (clusterheads or gateways) form the k-CCS/k-CS. Theorem 2: All the clusterheads (and gateways) marked in CKA form a k-CS (k-CCS) of the networks. This algorithm can be easily extended to achieve k-coverage in O(k log3 n) time with high probability. A randomized clu ...
Discuss the Importance of Computer Networks
... Operating systems have builtin networking capabilities Client for Microsoft Networks • Allows remote access of files and printers on a Microsoft network ...
... Operating systems have builtin networking capabilities Client for Microsoft Networks • Allows remote access of files and printers on a Microsoft network ...
milcom 2004 - Institute for Human and Machine Cognition
... applications or communications middleware usually depended on additional messages exchanged at the application (or transport) levels to operate. This is the case, for example, of some of the UDP-based signaling protocols for QoS management and application-layer switching strategies. In the case of t ...
... applications or communications middleware usually depended on additional messages exchanged at the application (or transport) levels to operate. This is the case, for example, of some of the UDP-based signaling protocols for QoS management and application-layer switching strategies. In the case of t ...
A Survey of Secure Wireless Ad Hoc Routing
... h1, h2, h3, ..., hn,where h0 = x, and hi = H(hi –1) for 0 < i ≤ n, for some n. E.g. Given an authenticated hi value, a node can authenticate hi–3 by computing H(H(H(hi –3))) and verifying that the resulting value equals hi ...
... h1, h2, h3, ..., hn,where h0 = x, and hi = H(hi –1) for 0 < i ≤ n, for some n. E.g. Given an authenticated hi value, a node can authenticate hi–3 by computing H(H(H(hi –3))) and verifying that the resulting value equals hi ...
Sansay Overview Feb 2013
... • Integrated INX/MST2 for easier deployment • Has a new system type with limited functions – This is similar to Peering Edition; ie, lower cost ...
... • Integrated INX/MST2 for easier deployment • Has a new system type with limited functions – This is similar to Peering Edition; ie, lower cost ...
Dr. Steve Corbato, Internet2
... Global Lambda Integration Facility (GLIF) • Plan developed at Reykjavik GLIF meeting – August 2003 ...
... Global Lambda Integration Facility (GLIF) • Plan developed at Reykjavik GLIF meeting – August 2003 ...
資工系網媒所 NEWS實驗室 A Distributed System
... message form site A to site B is chosen only when a message is sent Usually a site sends a message to another site on the link least used at that particular time Adapts to load changes by avoiding routing messages on heavily used path Messages may arrive out of order This problem can be remedied by ...
... message form site A to site B is chosen only when a message is sent Usually a site sends a message to another site on the link least used at that particular time Adapts to load changes by avoiding routing messages on heavily used path Messages may arrive out of order This problem can be remedied by ...
CAESAR: Middleware for Complex Service-Oriented Peer-to
... offered by the CAESAR middleware. Similarly, the SF provides access to the middleware for service developers. The SF uses a plugin-based approach to allow service developers to add plugins to the CAESAR middleware. The PF has similar function as the SF, but is meant for protocol developers. The PF e ...
... offered by the CAESAR middleware. Similarly, the SF provides access to the middleware for service developers. The SF uses a plugin-based approach to allow service developers to add plugins to the CAESAR middleware. The PF has similar function as the SF, but is meant for protocol developers. The PF e ...
Introduction - School of Electrical Engineering and Computer Science
... 2) A Self Positioning Algorithm (SPA) using the distance between nodes to form a coordinate system which is then used to locate and discover the node. Uses time of arrival to obtain the distance between neighbors ...
... 2) A Self Positioning Algorithm (SPA) using the distance between nodes to form a coordinate system which is then used to locate and discover the node. Uses time of arrival to obtain the distance between neighbors ...
Wireless Mesh Network
... This kind of routing scheme forwards packets only by using the position information of the nodes in the vicinity and in the destination node unlike the topology based schemes. This suggests that there is less impact on the geographic routing due to a topology change than the other routing protocols. ...
... This kind of routing scheme forwards packets only by using the position information of the nodes in the vicinity and in the destination node unlike the topology based schemes. This suggests that there is less impact on the geographic routing due to a topology change than the other routing protocols. ...
Standardization areas for securing Ad hoc networks
... of multiple paths between nodes in an Ad hoc network to increase the confidentiality. Since the initial message is divided into multiple parts, an attacker if succeeds to have one or lots of transmitted parts, the probability of original message reconstruction will be low. i. Assumption: The followi ...
... of multiple paths between nodes in an Ad hoc network to increase the confidentiality. Since the initial message is divided into multiple parts, an attacker if succeeds to have one or lots of transmitted parts, the probability of original message reconstruction will be low. i. Assumption: The followi ...
Server-Based Networks
... Signals are transmitted from the sending computer through the hub to all computers on the network. In the previously the computers are connected with mainframe computer as alternative the hub. The star network offers centralized resources and management. However, because each computer is connected t ...
... Signals are transmitted from the sending computer through the hub to all computers on the network. In the previously the computers are connected with mainframe computer as alternative the hub. The star network offers centralized resources and management. However, because each computer is connected t ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... usage of resource while still attempting to achieve the best-case routing capabilities. It is intended for use in sparse mesh networks where a fully connected path between the source and destination may or may not be present. The PROPHET routing protocol is preferable at situations with some of mobi ...
... usage of resource while still attempting to achieve the best-case routing capabilities. It is intended for use in sparse mesh networks where a fully connected path between the source and destination may or may not be present. The PROPHET routing protocol is preferable at situations with some of mobi ...
SKYWAN 7000 Product Family Overview
... minimized in situations where there are requirements for direct single hop communication between remote sites (mesh mode) or a traffic path from remote sites to both a regional center and an international headquarter location (multi-star mode). In addition, the SKYWAN platform is inherently a hubles ...
... minimized in situations where there are requirements for direct single hop communication between remote sites (mesh mode) or a traffic path from remote sites to both a regional center and an international headquarter location (multi-star mode). In addition, the SKYWAN platform is inherently a hubles ...
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.