Table Of Contents - Network Instruments GigaStor User Manual

Table of Contents

Chapter 1: Getting Started............................................................................................................................................. 6
Getting started using your GigaStor............................................................................................................................................................. 6
What is the GigaStor?....................................................................................................................................................................................7
Using the GigaStor Control Panel.............................................................................................................................................................8
Non-GigaStor-specific settings...................................................................................................................................................................9
Setting GigaStor's basic options.............................................................................................................................................................10
GigaStor reports............................................................................................................................................................................................ 12
Understanding GigaStor protocol and port settings......................................................................................................................13
Chapter 2: Hardware Settings...................................................................................................................................... 14
Configuring your GigaStor..............................................................................................................................................................................14
Defining your subnets in GigaStor........................................................................................................................................................ 14
Tracking individual analysis ports.......................................................................................................................................................... 14
Configuring the packet capture and GigaStor buffer size............................................................................................................15
Generating NetFlow records from the GigaStor's NetFlow Agent............................................................................................ 15
Chapter 3: About Probe Instances............................................................................................................................... 17
Introducing Probes............................................................................................................................................................................................ 17
What is a probe instance?.........................................................................................................................................................................18
Which software probe is right for you?............................................................................................................................................... 20
How probes work with switches............................................................................................................................................................ 22
Chapter 4: Deploying Probes in your Network.......................................................................................................... 23
Deploying probes in your network............................................................................................................................................................. 23
Monitoring half-duplex and full-duplex Ethernet links................................................................................................................. 23
Monitoring wireless traffic........................................................................................................................................................................ 24
Deciding where to place probes in your network...........................................................................................................................24
Ports used by Network Instruments products.................................................................................................................................. 26
Chapter 5: Packet Captures.......................................................................................................................................... 27
Capturing packets with the GigaStor......................................................................................................................................................... 27
Setting a schedule for when data captures should occur............................................................................................................ 27
Trimming data from your captures for space or privacy.............................................................................................................. 28
Password protecting the ability to change partial packet capture size.................................................................................. 29
Differences between statistics and packets....................................................................................................................................... 29
Understanding GigaStor indexing......................................................................................................................................................... 29
Exporting GigaStor data for archiving..................................................................................................................................................31
Chapter 6: Mining Data.................................................................................................................................................32
Mining data from your GigaStor.................................................................................................................................................................. 32
Selecting a time frame to analyze......................................................................................................................................................... 35
Analyzing data without any filters.........................................................................................................................................................35
Analyzing data with filters from the Observer filter editor.......................................................................................................... 36
Analyzing data with filters from the GigaStor Control Panel...................................................................................................... 36
Analyzing data by combining GigaStor Control Panel and Observer filters..........................................................................37
Analyzing multiple GigaStor probe instances from one GigaStor Control Panel................................................................ 37
Chapter 7: Stream Reconstruction...............................................................................................................................39
Reconstructing streams of HTTP, VoIP, and more................................................................................................................................. 39
Defining what can be recreated in Stream Reconstruction.........................................................................................................39
ii | Table of Contents (pub. 25.Apr.2014)