Securing Data using Pre-filtering and Traceback Method
... items and trace out the unauthorized user by means of traceback method. There are two key challenges in RegEx: the generation of RegEx print and the matching process of RegEx print. The generation of RegEx is tricky as it needs to tradeoff between two conflicting goals: filtering effectiveness, whic ...
... items and trace out the unauthorized user by means of traceback method. There are two key challenges in RegEx: the generation of RegEx print and the matching process of RegEx print. The generation of RegEx is tricky as it needs to tradeoff between two conflicting goals: filtering effectiveness, whic ...
TCP Trunking
... Principle of TCP Tunnels (cont) • Provides statistical guarantees to classes of traffic (eg., voice traffic should get at least 5% of the BW; Video traffic should get at least 10% of the BW, but no more than 20%). • Guarantees can be assured because of the traffic distribution pattern (eg., all flo ...
... Principle of TCP Tunnels (cont) • Provides statistical guarantees to classes of traffic (eg., voice traffic should get at least 5% of the BW; Video traffic should get at least 10% of the BW, but no more than 20%). • Guarantees can be assured because of the traffic distribution pattern (eg., all flo ...
A Combined Routing+Queueing Approach to Improving
... way of reducing congestion, and consequently queueing delay, is to use QoS routing. In this method, packets are routed along the fastest and not necessarily the shortest path. Although attractive, QoS routing is computationally expensive to be implemented as a dynamic protocol but becomes much more ...
... way of reducing congestion, and consequently queueing delay, is to use QoS routing. In this method, packets are routed along the fastest and not necessarily the shortest path. Although attractive, QoS routing is computationally expensive to be implemented as a dynamic protocol but becomes much more ...
Part I: Introduction - University of Massachusetts Amherst
... All routers maintain state state maintenance requires additional processing / memory resources Lots of flows traverse core (backbone) routers • Lots of state: need more memory • Lots of RSVP msgs to process: slows transfer speeds • Scheduler and Classifier have too much to deal with ...
... All routers maintain state state maintenance requires additional processing / memory resources Lots of flows traverse core (backbone) routers • Lots of state: need more memory • Lots of RSVP msgs to process: slows transfer speeds • Scheduler and Classifier have too much to deal with ...
Introduction - Adaptive Systems Lab
... In recent years, the explosive deployment of Wireless LANs worldwide has brought the entire gamut of Web Applications to our fingertips. Although existing systems provide a wide range of services, they are highly inefficient. The main goal of our ongoing research is to optimally allocate resources a ...
... In recent years, the explosive deployment of Wireless LANs worldwide has brought the entire gamut of Web Applications to our fingertips. Although existing systems provide a wide range of services, they are highly inefficient. The main goal of our ongoing research is to optimally allocate resources a ...
Aalborg Universitet Charaf, Hassan
... linear combination instead of choosing a specific packet. As does any other coding operation, network coding involves computational overhead, which might be prohibitive from a practical point of view. The authors in [7] proposed an efficient solution for mobile devices. We can use a systematic code ...
... linear combination instead of choosing a specific packet. As does any other coding operation, network coding involves computational overhead, which might be prohibitive from a practical point of view. The authors in [7] proposed an efficient solution for mobile devices. We can use a systematic code ...
Introduction to Sensor Networks
... • Novel routing protocol for wireless datagram networks that uses the positions of routers and the destination to make packet forwarding decisions. – Greedy forwarding used wherever possible and decisions made using only information about the router’s immediate neighbors. – Perimeter forwarding used ...
... • Novel routing protocol for wireless datagram networks that uses the positions of routers and the destination to make packet forwarding decisions. – Greedy forwarding used wherever possible and decisions made using only information about the router’s immediate neighbors. – Perimeter forwarding used ...
8) Network layer-3
... b) PRI: priority field defines priority of packets w.r.t. traffic congestion; 0-7: for packets that can slow down in event of congestion; 8-15 for real-time traffic with constant sending rate – Audio & Video. c) Flow label: (~ Service in IPv4) Special handling for a particular flow of data; pseudo-c ...
... b) PRI: priority field defines priority of packets w.r.t. traffic congestion; 0-7: for packets that can slow down in event of congestion; 8-15 for real-time traffic with constant sending rate – Audio & Video. c) Flow label: (~ Service in IPv4) Special handling for a particular flow of data; pseudo-c ...
8-2_diffserv07
... – Provides the abstraction of a virtual pipe between an ingress and an egress router • Network: guarantees that premium packets are not dropped and they experience low delay with requested profile • User: sends within profile. User does not send more than the size of the pipe – If it sends more, exc ...
... – Provides the abstraction of a virtual pipe between an ingress and an egress router • Network: guarantees that premium packets are not dropped and they experience low delay with requested profile • User: sends within profile. User does not send more than the size of the pipe – If it sends more, exc ...
9) Ch7 Transport Layer
... Transmission Control Protocol (TCP) a) The Transmission Control Protocol (TCP) is called a connectionoriented, reliable transport protocol. b) Like UDP it is a process-to-process protocol that uses port numbers. c) Unlike UDP, TCP creates a virtual connection between two TCPs to send data. In addit ...
... Transmission Control Protocol (TCP) a) The Transmission Control Protocol (TCP) is called a connectionoriented, reliable transport protocol. b) Like UDP it is a process-to-process protocol that uses port numbers. c) Unlike UDP, TCP creates a virtual connection between two TCPs to send data. In addit ...
Power Point Slides for Chap. 5
... – Have a hop counter contained in header of each packet. Counter is decreased with each hop and packet is discarded when hop reaches 0. – Ideally - hop counter and distance from source to destination should be identical. If distance is unknown, entire diameter of subnet could be used ...
... – Have a hop counter contained in header of each packet. Counter is decreased with each hop and packet is discarded when hop reaches 0. – Ideally - hop counter and distance from source to destination should be identical. If distance is unknown, entire diameter of subnet could be used ...
ns-tutorial
... format may be found at [4]. The java program to analyze the trace files is attached with the appendix. This file is used to record the packets and compute the following metrics – Number of data packets sent Number of data packets received by the destination host Total number of routing packets ...
... format may be found at [4]. The java program to analyze the trace files is attached with the appendix. This file is used to record the packets and compute the following metrics – Number of data packets sent Number of data packets received by the destination host Total number of routing packets ...
here - Redbrick DCU
... • The Transport layer handles error recognition and recovery. It also repackages long messages when necessary into small packets for transmission and, at the receiving end, rebuilds packets into the original message. The receiving Transport layer also sends receipt acknowledgments. • The Network lay ...
... • The Transport layer handles error recognition and recovery. It also repackages long messages when necessary into small packets for transmission and, at the receiving end, rebuilds packets into the original message. The receiving Transport layer also sends receipt acknowledgments. • The Network lay ...
1st Lecture
... A Taxonomy of Communication Networks Communication networks can be classified based on the way in which the nodes exchange information: ...
... A Taxonomy of Communication Networks Communication networks can be classified based on the way in which the nodes exchange information: ...
ppt - Rob Sherwood
... • services that require changes to switches and routers • e.g., o routing protocols o traffic monitoring services o IP mobility ...
... • services that require changes to switches and routers • e.g., o routing protocols o traffic monitoring services o IP mobility ...
Distance Vector Multicast Routing Protocol
... – Know capabilities of routers (Version no) – Keep-alive function ...
... – Know capabilities of routers (Version no) – Keep-alive function ...
IP Routing
... IP Routing IP layer in end-system hosts and in the router work together to route packets from source to destination. IP layer in each host and router maintains a routing table, which is used to route the packets based on IP address. If a destination host is directly connected to the originatin ...
... IP Routing IP layer in end-system hosts and in the router work together to route packets from source to destination. IP layer in each host and router maintains a routing table, which is used to route the packets based on IP address. If a destination host is directly connected to the originatin ...
Chapter 15 Local Area Networks
... • Current standards for bridge protocols dictate no closed loops — Only one path between any two devices — Impossible in standards-based implementation to provide multiple paths through multiple switches between devices • Limits both performance and reliability. ...
... • Current standards for bridge protocols dictate no closed loops — Only one path between any two devices — Impossible in standards-based implementation to provide multiple paths through multiple switches between devices • Limits both performance and reliability. ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... control traffic load is scaled with the data traffic load so that it makes up about 5% of the total data traffic. Each RTCP [5] packet starts with a header similar to that of RTP data packet. The payload type field identifies the type of packet, there are 5 RTCP payload types (200-204) defined: Se ...
... control traffic load is scaled with the data traffic load so that it makes up about 5% of the total data traffic. Each RTCP [5] packet starts with a header similar to that of RTP data packet. The payload type field identifies the type of packet, there are 5 RTCP payload types (200-204) defined: Se ...
MULTOPS - The University of Texas at Dallas
... only, the IP source address can be anything. In some cases, attackers use one specific forged IP source address on all outgoing IP packets to make all returning IP packets—and possibly ICMP messages—go to the unfortunate owner of that address. Attackers also use IP spoofing to hide their location on ...
... only, the IP source address can be anything. In some cases, attackers use one specific forged IP source address on all outgoing IP packets to make all returning IP packets—and possibly ICMP messages—go to the unfortunate owner of that address. Attackers also use IP spoofing to hide their location on ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... fully solve the hidden and exposed terminal problems of MANETs [12]. FAMA-NCS (Floor acquisition multiple access-Non Persistent Carrier): FAMA-NCS is the single channel protocol that guarantees that a single sender is able to send the data packets to the receiver without any collision [8]. FAMA prov ...
... fully solve the hidden and exposed terminal problems of MANETs [12]. FAMA-NCS (Floor acquisition multiple access-Non Persistent Carrier): FAMA-NCS is the single channel protocol that guarantees that a single sender is able to send the data packets to the receiver without any collision [8]. FAMA prov ...
computer network - model test paper
... Token ring is designed to use the ring topology and utilizes a token to control the transmission of data on the network. The token is a special frame which is designed to travel from node to node around the ring. When it does not have any data attached to it, a node on the network can modify the fra ...
... Token ring is designed to use the ring topology and utilizes a token to control the transmission of data on the network. The token is a special frame which is designed to travel from node to node around the ring. When it does not have any data attached to it, a node on the network can modify the fra ...
InfiniBand - FSU Computer Science
... » remove all possible down link following up links in each node » find one output port for each destination – Other solutions: destination renaming ...
... » remove all possible down link following up links in each node » find one output port for each destination – Other solutions: destination renaming ...
(Online): 2347-1697
... Software-Defined Networking is a new approach to networking that aims to make data networks more flexible, easier to operate and manage, and better able to respond to the changing demands of applications and network conditions. SDN is a modification to the current network architecture and it is beli ...
... Software-Defined Networking is a new approach to networking that aims to make data networks more flexible, easier to operate and manage, and better able to respond to the changing demands of applications and network conditions. SDN is a modification to the current network architecture and it is beli ...