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Circuit and Packet Switching
Circuit and Packet Switching

... established before any packets are sent, then all packets follow the same route. • Each packet contains a virtual circuit identifier instead of destination address, and each node on the preestablished route knows where to forward such packets. —The node need not make a routing decision for each pack ...
Switching and IP
Switching and IP

... range) ...
wespy_1 (dec 2007)
wespy_1 (dec 2007)

... Monitor devices such as routers ...
Computer Networks
Computer Networks

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Introduction - Ilam university
Introduction - Ilam university

... Sometimes called connection-oriented model. VCIs is swapped in the switches. Example: Lookup table. ...
Countering Dos Attacks with Stateless Multipath Overlays
Countering Dos Attacks with Stateless Multipath Overlays

... Performance evaluation ...
QoS Guarantee in Wirless Network
QoS Guarantee in Wirless Network

... via routing tables; or queried at a Name Server • After the source learns the destination’s hierarchical address, it uses it in future packets ...
performance analysis of wdm optical shuffle – exchange
performance analysis of wdm optical shuffle – exchange

... The node x is put in the list namely left side tree and the node y is put in the list namely right side tree. Step 2: From the node x, again two next immediate destination nodes, x1 (through shuffle path) and x2 (through exchange path) are found out and these nodes are added to the list of left side ...
Lecture 1: Course Introduction and Overview
Lecture 1: Course Introduction and Overview

Leading edge technologies in the HEAnet network - Redbrick
Leading edge technologies in the HEAnet network - Redbrick

...  Distance Vector protocols use hop count as a metric, link state (eg. OSPF) use cost. Hybrid protocols like EIGRP can use complex rules involving delay, reliability  Convergence is the length of time after a network change (Interface/line down, router added etc.)that routing tables take to update ...
Adventures in Computer Security
Adventures in Computer Security

... Routing Table Update Protocols Interior Gateway Protocols: IGPs • distance vector type - each gateway keeps track of its distance to all destinations – Gateway-to-Gateway: GGP – Routing Information Protocol: RIP ...
Operating Systems
Operating Systems

... • A nonblocking send call permits sender to continue its operation after send call – Asynchronous message passing – Enhances concurrency between sender and receiver ...
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...  Foreign agent relays request to home agent  Home agent accepts or denies request and sends registration reply to foreign agent  Foreign agent relays reply to mobile node ...
MAC Protocols
MAC Protocols

... Random Access Protocols  When node has packet to send  transmit at full channel data rate R.  no a priori coordination among nodes  two or more transmitting nodes -> “collision”,  random access MAC protocol specifies:  how to detect collisions  how to recover from collisions (e.g., via delay ...
MAC Protocols
MAC Protocols

... Random Access Protocols  When node has packet to send  transmit at full channel data rate R.  no a priori coordination among nodes  two or more transmitting nodes -> “collision”,  random access MAC protocol specifies:  how to detect collisions  how to recover from collisions (e.g., via delay ...
3rd Edition: Chapter 4 - Southern Adventist University
3rd Edition: Chapter 4 - Southern Adventist University

...  flood and prune: reverse path forwarding, source-based tree RPF tree based on DVMRP’s own routing tables ...
A Secure Routing Protocol for Ad Hoc Networks
A Secure Routing Protocol for Ad Hoc Networks

Cellular IP
Cellular IP

Chapter two - UniMAP Portal
Chapter two - UniMAP Portal

... established before any packets are sent, then all packets follow the same route. • Each packet contains a virtual circuit identifier instead of destination address, and each node on the preestablished route knows where to forward such packets. —The node need not make a routing decision for each pack ...
IP Routing - courses.psu.edu
IP Routing - courses.psu.edu

... IST 228\Ch5\IP Routing ...
3rd Edition: Chapter 3
3rd Edition: Chapter 3

... OSPF (Open Shortest Path First) “open”: publicly available  uses link state algorithm ...
Network Evolution in Coming 10 Years: What's the Future of
Network Evolution in Coming 10 Years: What's the Future of

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MOBILE/WIRELESS NETWORKS
MOBILE/WIRELESS NETWORKS

... Mobile IP  Mobile Router (MR) takes role of mobile node in performing mobility functions  Mobile network nodes are not aware of mobility and do not perform mobility functions  Home agents bind entire network prefix to MR’s care-of address ...
Introduction to Artificial Intelligence
Introduction to Artificial Intelligence

... • To avoid specifying the complete CPT, special nodes that make assumptions about the style of interaction can be used. • A noisyor node assumes that the parents are independent causes that are noisy, i.e. there is some probability that they will not cause the effect. • The noise parameter for each ...
O(Log N) - DEIM (URV) - Universitat Rovira i Virgili
O(Log N) - DEIM (URV) - Universitat Rovira i Virgili

... new node n 2- Update finger and predecessor of existing nodes to reflect the addition of n n becomes ith finger of node p if: • p precedes n by at least 2i-1 • ith finger of node p succeeds n 3- Transfer state associated with keys that node n is now responsible for New node n only needs to contact n ...
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Routing in delay-tolerant networking

Routing in delay-tolerant networking concerns itself with theability to transport, or route, data from a source to adestination, which is a fundamental ability all communication networks musthave. Delay- and disruption-tolerant networks(DTNs) are characterized by their lack of connectivity, resulting in a lack of instantaneous end-to-end paths. In these challenging environments, popular ad hoc routing protocols such as AODV and DSR fail to establish routes. This is due to these protocols trying to first establish a complete route and then, after the route has been established, forward the actual data. However, when instantaneous end-to-end paths are difficult or impossible to establish, routing protocols must take to a ""store and forward"" approach, where data isincrementally moved and stored throughout the network in hopes that it will eventually reach its destination. A common technique used tomaximize the probability of a message being successfully transferred is toreplicate many copies of the message in hopes that one will succeed inreaching its destination.
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