CS 5480/6480: Computer Networks – Spring 2012 Homework 4
... questions that are based on this paper. (a) (2 points) Write two uses of reservation/path refresh messages. 1. Recover from an earlier lost reservation message. 2. Handle receiver/sender that goes away without teardown (caused by the lack of a refresh message). 3. Deal with path changes. (b) (1 poin ...
... questions that are based on this paper. (a) (2 points) Write two uses of reservation/path refresh messages. 1. Recover from an earlier lost reservation message. 2. Handle receiver/sender that goes away without teardown (caused by the lack of a refresh message). 3. Deal with path changes. (b) (1 poin ...
EE29 Shilpi Agrawal - RJIT paper
... Wireless networks are of two categories i.e. fixed infrastructure and infrastructure less. Mobile Ad hoc Networks (MANET) are among second category i.e. MANET’s are such wireless networks in which the nodes can move from one place to another place and thus have no fix infrastructure or topology. Thi ...
... Wireless networks are of two categories i.e. fixed infrastructure and infrastructure less. Mobile Ad hoc Networks (MANET) are among second category i.e. MANET’s are such wireless networks in which the nodes can move from one place to another place and thus have no fix infrastructure or topology. Thi ...
GPSR: Greedy Perimeter Stateless Routing for Wireless Networks
... depends on the rate of mobility in the network and range of nodes’ radios. We show the effect of this interval on GPSR’s performance in our simulation results. We note that keeping current topological state for a one-hop radius about a router is the minimum required to do any routing; no useful forw ...
... depends on the rate of mobility in the network and range of nodes’ radios. We show the effect of this interval on GPSR’s performance in our simulation results. We note that keeping current topological state for a one-hop radius about a router is the minimum required to do any routing; no useful forw ...
ppt - Computer Science, Columbia University
... A procedure for sending and receiving reachability information about network to other routers. ...
... A procedure for sending and receiving reachability information about network to other routers. ...
thm05 - adhoc p2
... The routers are free to move randomly and organize themselves arbitrarily; thus, the network's wireless topology may change rapidly and unpredictably. Source: Internet Engineering Task Force (IETF) ...
... The routers are free to move randomly and organize themselves arbitrarily; thus, the network's wireless topology may change rapidly and unpredictably. Source: Internet Engineering Task Force (IETF) ...
lecture9
... iterative process of computation, exchange of info with neighbors “distance vector” algorithms ...
... iterative process of computation, exchange of info with neighbors “distance vector” algorithms ...
PPT slides
... Active Networks • Nodes (routers) receive packets: – Perform computation based on their internal state and control information carried in packet – Forward zero or more packets to end points depending on result of the computation ...
... Active Networks • Nodes (routers) receive packets: – Perform computation based on their internal state and control information carried in packet – Forward zero or more packets to end points depending on result of the computation ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... AODV uses multi-hop mechanism but UDP uses hop-by-hop mechanism. As the name states the hop by hop mechanism is slower when compared to multi-hop.This is because instead of requesting only one neighbor at a time,multi-hop method requests surrounding neighbors out of which node gives back RREP is con ...
... AODV uses multi-hop mechanism but UDP uses hop-by-hop mechanism. As the name states the hop by hop mechanism is slower when compared to multi-hop.This is because instead of requesting only one neighbor at a time,multi-hop method requests surrounding neighbors out of which node gives back RREP is con ...
Document
... F sets distance to G to infinity and sends update to A A sets distance to G to infinity since it uses F to reach G A receives periodic update from C with 2-hop path to G A sets distance to G to 3 and sends update to F F decides it can reach G in 4 hops via A ...
... F sets distance to G to infinity and sends update to A A sets distance to G to infinity since it uses F to reach G A receives periodic update from C with 2-hop path to G A sets distance to G to 3 and sends update to F F decides it can reach G in 4 hops via A ...
Chapter 9 Slides - Hafr Al-Batin Community College (HBCC)
... off into separate LANs without being physically divided up by routers. Formation of virtual workgroups. Because workstations can be moved from one VLAN to another just by changing the configuration on switches, it is relatively easy to put all the people working together on a particular project all ...
... off into separate LANs without being physically divided up by routers. Formation of virtual workgroups. Because workstations can be moved from one VLAN to another just by changing the configuration on switches, it is relatively easy to put all the people working together on a particular project all ...
chapter1
... Microcontroller performs tasks, processes data and controls the functionality of other components in the sensor node. Other alternatives that can be used as a controller are: General purpose desktop microprocessor, Digital signal processors, Field Programmable Gate Array (FPGA) and Application-speci ...
... Microcontroller performs tasks, processes data and controls the functionality of other components in the sensor node. Other alternatives that can be used as a controller are: General purpose desktop microprocessor, Digital signal processors, Field Programmable Gate Array (FPGA) and Application-speci ...
OSPF - Computing Sciences
... protocol that is used within an autonomous system (AS). Two types of IGP. Distance-vector routing protocols each router does not possess information about the full network topology. It advertises its distances to other routers and receives similar advertisements from other routers. Using these routi ...
... protocol that is used within an autonomous system (AS). Two types of IGP. Distance-vector routing protocols each router does not possess information about the full network topology. It advertises its distances to other routers and receives similar advertisements from other routers. Using these routi ...
OSPF - Computing Sciences
... protocol that is used within an autonomous system (AS). Two types of IGP. Distance-vector routing protocols each router does not possess information about the full network topology. It advertises its distances to other routers and receives similar advertisements from other routers. Using these routi ...
... protocol that is used within an autonomous system (AS). Two types of IGP. Distance-vector routing protocols each router does not possess information about the full network topology. It advertises its distances to other routers and receives similar advertisements from other routers. Using these routi ...
A Heuristic Search Algorithm for Re-routing of On
... ensure that a path exists between any possible source and destination pair. However, as the results indicate, the required number of final complete checks is in most cases very small, if the network is routing connectable. ...
... ensure that a path exists between any possible source and destination pair. However, as the results indicate, the required number of final complete checks is in most cases very small, if the network is routing connectable. ...
No Slide Title
... – Example: A would not send the first routing update to B, since B is the next hop on A’s current route to C – Split Horizon does not solve count-to-infinity in all cases! ...
... – Example: A would not send the first routing update to B, since B is the next hop on A’s current route to C – Split Horizon does not solve count-to-infinity in all cases! ...
An Analytical Solution to Video Streaming in Mobile Ad hoc Networks
... Controlled flooding of Routing Request (RREQ) and Routing Reply (RREP) frames ...
... Controlled flooding of Routing Request (RREQ) and Routing Reply (RREP) frames ...
c 2009 IEEE. Personal use of this material is permitted. However
... in which the node population is sparse, and the contacts between the nodes in the network are infrequent. As a result, the network graph is rarely, if ever, connected and message delivery must be delay-tolerant. Traditional MANET routing protocols such as AODV [45], DSR [27], DSDV [46] and LAR [29] ...
... in which the node population is sparse, and the contacts between the nodes in the network are infrequent. As a result, the network graph is rarely, if ever, connected and message delivery must be delay-tolerant. Traditional MANET routing protocols such as AODV [45], DSR [27], DSDV [46] and LAR [29] ...
Chapter 22 Distributed Applications
... SMTP Protocol - Reliability • Used to transfer messages from sender to receiver over TCP connection • Attempts to provide reliable service • No guarantee to recover lost messages • No end to end acknowledgement to originator • Error indication delivery not guaranteed ...
... SMTP Protocol - Reliability • Used to transfer messages from sender to receiver over TCP connection • Attempts to provide reliable service • No guarantee to recover lost messages • No end to end acknowledgement to originator • Error indication delivery not guaranteed ...
Survey of Routing Protocols for Mobile Ad-hoc - dl.edi
... nodes. This periodic propagation causes network overhead in AODV [6]. In AODV a route has to discover prior to the actual data packet transmission. This initial search latency may degrade the performance of interactive applications [6]. Similarly the quality of path is not known prior to call set-up ...
... nodes. This periodic propagation causes network overhead in AODV [6]. In AODV a route has to discover prior to the actual data packet transmission. This initial search latency may degrade the performance of interactive applications [6]. Similarly the quality of path is not known prior to call set-up ...
Wormhole attacks
... Wormhole threat against network protocol: Node s2: update and broadcast its routing table entries (s2, s9) Node s2 Node {s8, s10, s11, s12} only two hops via s9 Neighbors of s2 adjust their routing tables. {s1, s3, s4, s5, s7} route via s2 to reach nodes {s9, s10, s11, s12}. Attacker Node s2 ...
... Wormhole threat against network protocol: Node s2: update and broadcast its routing table entries (s2, s9) Node s2 Node {s8, s10, s11, s12} only two hops via s9 Neighbors of s2 adjust their routing tables. {s1, s3, s4, s5, s7} route via s2 to reach nodes {s9, s10, s11, s12}. Attacker Node s2 ...
