Fluke Computer Accessories manual Introduction, What is NetFlow?, What is NetFlow Tracker?

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User’s Guide – version 3.5

NetFlow Tracker

Introduction

This document is the user manual for NetFlow Tracker, a software product designed to collect NetFlow information from Cisco equipment and present it in a meaningful way. This document does not provide any assistance with Cisco equipment itself. Please consult your Cisco documentation for any queries you have relating to the equipment itself. For more information on NetFlow from the Cisco website, go to http://www.cisco.com/go/netflow.

What is NetFlow?

A network flow is a sequence of packets between a given source and destination in one direction only. Cisco routers store and export information about the network flows they handle for network management purposes; high-end routers and switches use network flows to accelerate security processing. In order to distinguish flows from one another, the source and destination addresses and application (TCP/UDP) port numbers are used. The IP Type of Service byte, protocol type and the ifIndex of the input interface are also used to uniquely identify the flow to which a packet belongs.

What is NetFlow Tracker?

NetFlow Tracker provides a powerful but easy-to-use set of dynamic charts and reports to help the network administrator make sense of the traffic flow information provided by his routers.

Features and Benefits

•Highly detailed view of network traffic without the need for costly probes.

•Web-based front end allows users anywhere on the network to use the system.

•Straightforward installation and configuration.

•Can be installed on Windows and Linux servers.

•Native support for sFlow without the need to use an external converter.

•Per-minute resolution.

•Traffic statistics visible just minutes after the event.

•Allows rapid diagnosis of network congestion and failure.

•Useful when configuring QoS to examine the effect of a change in policy.

•Stores one week of full information by default.

•All real-time reports and charts can be filtered on any field.

•Every real-time report and chart allows drilldown on each row or area.

•Every real-time chart allows zooming in and drilling down on a selected time range.

•Custom long-term reports and charts can be created.

•Custom executive reports can be defined and easily accessed.

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Contents NetFlow Tracker Contents LONG-TERM Reports Appendix 2 CSV File Format Grant of Licence and Payment of Fees Software License AgreementCopyright Customer Remedies Confidential Information and Security User’s Guide version NetFlow Tracker Definitions Supplier’s Undertakings Support ServicesSupport Charges Undertakings by YouLimitation of Liability and indemnity Intellectual Property RightsTermination Miscellaneous Confidential Information and SecurityExceptions to Support Services Support HoursResponse Times Introduction What is NetFlow?What is NetFlow Tracker? Features and BenefitsUser’s Guide version NetFlow Tracker Operating System Support InstallationPre-installation Checks Minimum System RequirementsInstallation on Microsoft Windows Installation on Linux Post-installation Tasks Add listener ports Set up Snmp community stringsSet up web front-end security Configure your routers and switchesUsing NetFlow Tracker Interfaces Device traffic metersPer-AS data Working with ChartsChanging the displayed chart Chart legendZooming out View a standard chart as a pie chartView a standard chart as a tabular report ZoomingOpen the chart in a new window Alter the filter applied to a standard chartExport a chart to another application Print the chartWorking with Tabular Reports Working with Pie ChartsExamine a single row Sort a tabular reportReport Templates Address ReportsSession Reports Network Reports QoS ReportsOther Reports Creating Filtered ReportsInterface Reports Traffic Identification ReportsStart time Report templateSample size Source dataOut interface Time zoneSource device InterfaceSrc/dest port ProtocolSource port Dest portDest AS DiffServTraffic class Source ASFilter Editor Long-term ReportsDevices and Interfaces Per-device and Per-interface Long-term ReportsUser’s Guide version NetFlow Tracker Reports Report URL Format General FormReport Format Parameters 0026 00230024 0025True ChartPie Number256 FeaturesSections 128Time Range Parameters Week MillisHour DayCalendar-based advanced Time range will extend for this number of unitsHHmm Applying a time-of-day mask to the time rangeDay1-day2/time1-time2 113 110105 100125 115120 140Daily 285300 MinuteFilter Parameters Name Addr1-addr2Port1-port2 Port1-port2/number Port/namePort/number Port1-port2/nameCode PrecTos Prec%20tosMask Addr/maskPassword Security ParametersUsername Management Portal Access Control Parameters SecretNull VPN Out VPN Refresh and Resolve All buttons, if applicable Chart scrollbarChart selection headers Filter Editor button, if applicableQuery Size Performance TuningDatabase Server Settings Disk SpeedListener Ports Configuration GuideSnmp Settings LicensingDevice Settings Device SettingsDevice List Sampled Data Scaling VPNs Security SettingsHttp//proxy/tracker1/report.jsp?portalacl= Management Portal SettingsHttp//proxy/tracker1/report1 Http//tracker1/report.jsp?portalsecret=secret&aclif=ProxyPassReverse /tracker1/ http//1.2.3.4 Using Apache as a Portal ServerRewriteEngine On RewriteRule /tracker1/.*$ http//1.2.3.4/$1 P,L,QSAReport Settings General SettingsReal-time Reports Scheduled Reports Saved FiltersLong-term Reports Executive Reports Span class=repdesctextTest/span Nelements=5 and chartWidth=400 ContentSub-reports User’s Guide version NetFlow Tracker Hostname Resolution Settings IP Application NamesDiffServ Names Database Settings AS NamesSubnet Names Backup Memory Settings ArchivingPerformance Counters Unprocessed Flowsets NetFlow Data ReceivedTraffic Described Ignored FlowsNo In Interface AboutIp flow-export destination address Appendix 1 Device ConfigurationEnabling Netflow Export on an IOS Device Ip cefShow ip cache flow Show ip cache verbose flow Ip flow-cache timeout activeIp flow-cache timeout inactive Show ip flow exportMls aging long Ip route-cache flow infer-fieldsMls netflow Mls nde sender versionUser’s Guide version NetFlow Tracker Set mls nde address Set mls bridged-flow-statistics enable vlanlistSet mls nde enable Set system name nameEnabling Flow Detail Records on a Packeteer Device Flow-sampler-map allflows mode random one-out-of 1 exitEnabling NetFlow on an Enterasys Device Tabular report CSV format Chart CSV formatPie chart CSV format Appendix 2 CSV File FormatTabular report XML format Chart XML formatPie chart XML format Appendix 3 XML FormatAppendix 4 Third Party Software Components JspSmartUpload Quartz