Netflow Simulator PowerPoint PPT Presentations

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NetFlow Very useful for traffic analysis Standard sampler: Cisco Netflow Juniper Traffic Sampling Parameters: Flow export timer (Determines when current flow info is ...

1144154983.524877 IP 220.135.232.0.61606 130.207.208.0.32459: . ack 2904096123 ... Open the nam trace file. set nf [open out.nam w] $ns namtrace-all $nf ...

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A lightweight application classification scheme based on NetFlow data ... (Cisco NetFlow, Juniper cflowd, Huawei NetStream,...) Sampling further reduces the cost ...

... RFC 3954 - Cisco Systems NetFlow Services. Export Version 9. 12/30 ... 1) CPU utilisation. 2) RFC2544 throughput with IP flow monitoring ... utilisation ...

State of the art on active and passive technics ... IPANEMA. CISCO's Netflow. DAG cards. Etc. 20. JTR'04, Montpellier, France, 4-6 octobre 2004 ...

What s New with the New CCNA? Presented by Anthony Sequeira, CCIE No. 15626 Interconnecting Cisco Network Devices, Part 1 (ICND1), Foundation Learning Guide

Minimizing Wide-Area Performance Disruptions in Inter-Domain Routing Yaping Zhu yapingz@cs.princeton.edu Advisor: Prof. Jennifer Rexford Princeton University

Title: CS244a: An Introduction to Computer Networks Author: Nick McKeown Last modified by: Y L Created Date: 12/30/1999 6:54:40 PM Document presentation format

Answering these questions is a complex and expensive process ... Reconfigure network to track e.g. time of day load changes. 6. Summary ...

Setup virtualization -- Generate TCL scripts -- Configure bandwidth, latency, etc. ... TCPDUMP setup - EMULAB GUI can be used here. Worm propagation snapshots ...

Title: Network Tomography Author: Gang Liang Last modified by: binyu Created Date: 10/21/2003 11:55:58 PM Document presentation format: On-screen Show

DDoS attack bad response time. Result: Never, sometimes, eventually, occasionally, maybe ... Attribute changes. NeXtworking'03 June 23-25,2003, Chania, Crete, Greece ...

Anemone platform. Studying feasibility and building prototypes. Data collection: flows ... The Anemone platform. Wish to be able to answer queries like ' ...

Anemone is a pervasive endsystem network management platform ... There will always be some traffic sources or sink Anemone can't monitor ...

Un-Cooperative Congestion Control Kartikeya Chandrayana Prof. Shivkumar Kalyanaraman ECSE Dept., R.P.I. chandk@rpi.edu (http://www.rpi.edu/~chandk)

User behavior, time-of-day effects, and new applications ... Practical solution. Flow level measurements at peering links (both directions! ...

Microsoft Research, Cambridge (Guest lecture, Digital Communications II) ... Models of general communication networks. Tend to be quite abstract and ... technology ...

Title: Sigcomm 00 Talk Subject: Deriving Traffic Matrices for Operational IP Networks: Methodology and Experience Author: Albert Greenberg Last modified by

Low packet/flow temporal locality. End-point routers & appliances execute stateful apps ... Larger flow-states emphasize network properties impact ...

Introduction Ji Navr til SLAC (From Papers to Practice) MWFS, TOMO, TOPO First results What has been done Phase 1 - Remodeling - Code separation (BW and CT ...

Big Internet. Web Site. User Site. 8. Traffic Demands. Interdomain Traffic. Web Site. User Site ... 'Internet traffic engineering by optimizing OSPF weights' ...

In 1989, a random of the journalistic persuasion asked ... Anemone. An endsystem network management platform. Collect flow information from endsystems, and ...

Un-Cooperative Congestion Control. Kartikeya Chandrayana. Prof. ... Real-Player, Windows Media, Quake, Half-Life etc. Some of these are constant rate protocols. ...

Internet Measurement Tutorial Yuval Shavitt School of Electrical Engineering http://www.eng.tau.ac.il/~shavitt

ITEC 275 Computer Networks Switching, Routing, and WANs Week 11 Robert D Andrea Some s provide by Priscilla Oppenheimer and used with permission

Traceroute and looking glass servers. http://www.traceroute.org/ http://www.nanog.org/lookingglass.html. Discussion. How important is accuracy of the data? ...

Simulation versus emulation of DoS attack experiments are compared. As a case study, we considered low-rate TCP-targeted DoS attacks. ...

... user's rate updation rules. Allows users to chose rate control ... User s is described by: xs: Rate, Us: Utility function, q: end-to-end price. xs = Us'-1(q) ...

Combining elementary measurements: traffic, topology, state, performance ... Combining packet/flow measurements with network state ...

Tomo-gravity Matthew Roughan Yin Zhang Albert Greenberg Nick Duffield A Northern NJ Research Lab {yzhang,roughan,duffield,albert}@research.att.com

Amsterdam Internet Exchange Technical Meeting. Amsterdam. September ... Network Engineer / Architect / Manager / Director, EUnet, Amsterdam, The Netherlands. ...

Systems software and compiler development for Borland (Turbo Prolog), ports to ... real time network monitoring, detection of anomalous/malicious traffic (DOS) ...

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Systems software and compiler development for Borland (Turbo ... actually, any set of ASs as peer, home, intermediate, and/or transit. we can sort and group on ...

Erroneous Routing. Packets clearly taking wrong path (e.g., through Israel) One example of erroneous routing. 8. Changing Paths. Connectivity altered mid-stream ...

Let's assume you are depended with finding a Network Simulation answer for supplant the numerous free devices you have been utilizing to deal with your little network.

An Information-Theoretic Approach to Traffic Matrix Estimation ... Seismology. Astronomy. Statistical intuition = Regularization. Penalty function J(x) ...

Hope to track both large and small flows ... depends on the routing policies of other ASs or directly- connected customer. ... A small number of high- end ...

Empower ISPs to deploy vendor independent security incident techniques ... Post Mortem. ISP Security Response ... Post Mortem Analyzing what just happened. ...

This domain focuses on the security specialist’s responsibility in incident response. Everything from incident response to disaster recovery and business continuity is covered in this domain.

Your Data Center Is a Router: The Case for Reconfigurable Optical Circuit Switched Paths

A single drive can store a whole day. Access times are equally important ... Case study 2: Arbor networks. Case study 3: Asta Networks. Vantage System 2.0 ...

'A Northern NJ Research Lab' {yzhang,roughan,duffield,albert}@research.att.com. Albert Greenberg ... Can we do route optimization (or network engineering in general) ...

A new infrastructure for high throughput network and application performance measurement. Les Cottrell SLAC Prepared for the IPAM meeting, UCLA Mar 19 02

A Non-intrusive, Wavelet-based Approach To Detecting Network Performance Problems Polly Huang ETH Zurich Anja Feldmann U. Saarbruecken Walter Willinger AT&T Labs-Research

1. 2001 Carnegie Mellon University. Waging War Against the New Cyberwarrior. Tom Longstaff ... Local/parochial focus. Poor Network Situational Awareness ...

Title: MonNet A project for network and traffic monitoring Last modified by: JOHNWOLF Document presentation format: On-screen Show Other titles

Internet Measurement: Infrastructure, Traffic and Applications ... Gnutella (Bearshare, Limewire) De-centralized algorithm. Distributed searching; ...

with LEAST area and power penalty [Lin, TCAD'06]. Vdd Programmable ... and effective driving resistance of switch has been ... of switches along this path. ...

Investigating of origins. Long-term traffic engineering. ... Investigating ... of the flow-rate estimation was investigated using real traffic data. ...

Safety of Nuclear Reactors Professor H. MOCHIZUKI Research Institute of Nuclear Engineering, University of Fukui Objective of the Experiment Power generation after ...

Incorporating various operational constraints. Other ways of measuring the traffic matrix ... Incorporating hot-potato routing. Combine traffic across egress ...

Over a particular time period t. Time period. Performance debugging -- minutes or tens of minutes ... (http://www.research.att.com/~jrex/papers/ieeenet00.ps) ...

We will have a guest speaker on 3/18 to talk about how to do game measurements ... Case study: modeling heavy-hitter traffic. 22. Why measuring? ...