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Path Splicing: Reliable Connectivity with Rapid Recovery ABSTRACT
Path Splicing: Reliable Connectivity with Rapid Recovery ABSTRACT

... This section describes the mechanism by which slices are “spliced” together to form an end-to-end path. A sequence of bits in the packet header (placed between the network and transport layer headers)—forwarding bits—signal to routers which forwarding table should be used to forward traffic. Other w ...
Chapter 10
Chapter 10

... because Layer 2 data units, frames, are for local addressing. Layer 3 data units, packets, are for end-to-end addressing. Layer 2 Ethernet frames are designed to operate within a broadcast domain using the MAC address that is burned into the physical device. Other Layer 2 frame types include Point- ...
Aalborg Universitet Morten Videbæk
Aalborg Universitet Morten Videbæk

... networks, the ExOR protocol [5] is an integrated routing and MAC technique that utilizes the cooperation between nodes using the broadcast nature of the wireless medium. However, the nodes in ExOR need to coordinate their actions to avoid transmitting duplicate packets. In order to decrease the coor ...
slides - SmartLab
slides - SmartLab

... MPAC 2004 ...
paper
paper

... (a) Opportunistic Listening: Wireless is a broadcast medium, creating many opportunities for nodes to overhear packets when they are equipped with omni-directional antennae. COPE sets the nodes in promiscuous mode, makes them snoop on all communications over the wireless medium and store the overhea ...
Document
Document

... About delivery and Routing ...
Smart Dust and TinyOS: Hardware and Software for Network
Smart Dust and TinyOS: Hardware and Software for Network

... • each node maintains estimate of loss rate over entire path to root • select nbr on the minimum loss path as parent – Pi[to root] through j = P[link i,j] * Pj[to root] – assuming loss rate along path is independent of how packets enter the path ...
Full Text  - International Journal of Application or Innovation in
Full Text - International Journal of Application or Innovation in

... which uses distance vector share information with other routers in network [6]. Types of routing protocols: there are two kinds of routing protocols 1. Static: in this case the network is fixed. (there are no nodes added or removed) 2. Dynamic: Changes are allowed in this case by allowing updates on ...
Diapositiva 1
Diapositiva 1

...  Communication between mesh nodes are typically based on Wi-Fi radios (IEEE 802.11 a/b/g) attached to directional or omnidirectional antennas.  All radios are set to ad-hoc mode (not client mode or infrastructure (access point) mode).  Each node in the WMN has the same ESSID (name) and BSSID (num ...
Chapter 14
Chapter 14

... •Hence the problems of Address Depletion and Class B address exhaustion could be sorted out by a protocol which permitted the use of CIDR. Exterior ROUTERS •For exterior routing, Distance-Vector is not used because of the following problems: –There are occasions when the route with the smallest hop- ...
Vivaldi: A Decentralized Network Coordinate System
Vivaldi: A Decentralized Network Coordinate System

... A number of existing synthetic coordinate systems address some of these challenges, but none addresses them all, as Section 6 discusses. The primary contribution of this paper is a decentralized, lowoverhead, adaptive synthetic coordinate system, Vivaldi, that computes coordinates which predict Inte ...
Unicast Routing Protocols
Unicast Routing Protocols

... To show that the shortest path tree for each node is different, we found the shortest path tree as seen by node C (Figure 11.20). We leave the detail as an exercise. ...
PDF
PDF

... Ring Membership Management. The number of nodes per ring, k, represents an inherent tradeoff between accuracy and overhead. A large k increases a node’s information about its peers and helps it make better choices when routing queries. On the other hand, a large k also entails more state, more memor ...
blue
blue

... Libnids is often used by network monitor systems Libnids drawback : – when packet lose, it can’t reassemble following packets – It consumes a lot of memory to store packets ...
paper
paper

... coding and demonstrate via implementation and testbed experiment that intra-session network coding yields practical benefits to both unicast and multicast flows [16]. Inter-session network coding, to which COPE belongs, is known to be difficult. It is known that linear codes are insufficient for opt ...
An Incentive Driven Lookup Protocol For Chord-Based Peer-to-Peer (P2P) Networks
An Incentive Driven Lookup Protocol For Chord-Based Peer-to-Peer (P2P) Networks

Decentralized Location Services
Decentralized Location Services

... Routing maps across network are up to date Null/non-null properties identical at all nodes sharing same ...
SplitStream: High-Bandwidth Multicast in Cooperative Environments Miguel Castro Peter Druschel
SplitStream: High-Bandwidth Multicast in Cooperative Environments Miguel Castro Peter Druschel

... Therefore, we expect configurations where all peers receive all stripes to be common. In this case, the algorithm can guarantee efficient forest construction with probability one even if there is no spare capacity. In an open cooperative environment, it is important to address the issue of free loaders ...
No Slide Title
No Slide Title

... Regular routing updates: Every 30 seconds, send all or part of the routing tables to every neighbor. Triggered Updates: Whenever the metric for a route changes, send data that has changed. ...
Chapter 6 Dynamic Routing
Chapter 6 Dynamic Routing

... 90 route found using EIGRP 100 route found using IGRP 110 route found using OSPF 120 route found using RIP Maximum possible value is 255 ...
Peer-to-Peer Overlay Broker Networks in an Event
Peer-to-Peer Overlay Broker Networks in an Event

... algorithm — a complete description of Pastry and a discussion of its properties can be found in [13]. Each Pan node has a unique node identifier. The main operation provided by the routing layer is route(message, nodeId) which routes a message to a node with a particular nodeId. Each node keeps a ro ...
Class Power Points for Chapter #6
Class Power Points for Chapter #6

... being used. Currently we are using IP version four, although IP version six will soon make an impact on the networking world. 2. IHL (Internet Header Length) - The IHL simply measures the length of the IP header in 32-bit words. The minimum header length is five 32-bit words. 3. Type of Service - Th ...
TCP in Wireless Networks
TCP in Wireless Networks

... that packet to the receiver. Another well understood policy that is referred to as the go-back-N (GBN) policy [11]. Under the GBN policy, when a timeout occurs, typically on the unacknowledged packet that was sent at the earliest time, the sender resends all unacknowledged packets, including the pac ...
ppt
ppt

Powerpoint Slides
Powerpoint Slides

... First prune all links not fulfilling constrains Now find shortest path on the rest of the topology ...
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Backpressure routing

In queueing theory, a discipline within the mathematical theory of probability, the backpressure routing algorithm is a method for directing traffic around a queueing network that achieves maximum network throughput, which is established using concepts of Lyapunov drift. Backpressure routing considers the situation where each job can visit multiple service nodes in the network. It is an extension of max-weight scheduling where rather each job visits only a single service node.
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