Juniper EX9200 Series Fiche technique

Port Mirroring Analyzers Feature Guide for EX9200

Switches

Release

16.2

Modified: 2016-11-03

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Port Mirroring Analyzers Feature Guide for EX9200 Switches

Release 16.2

The information in this document is current as of the date on the title page.

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the

year 2038. However, the NTP application is known to have some difficulty in the year 2036.

END USER LICENSE AGREEMENT

The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks

software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at

http://www.juniper.net/support/eula.html. By downloading, installing or using such software, you agree to the terms and conditions of

that EULA.

Table of Contents

AbouttheDocumentation............................................ix

DocumentationandReleaseNotes..................................ix

SupportedPlatforms.............................................ix

UsingtheExamplesinThisManual..................................ix

MergingaFullExample........................................x

MergingaSnippet............................................x

DocumentationConventions.......................................xi

Documentation Feedback........................................xiii

RequestingTechnicalSupport.....................................xiii

Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

OpeningaCasewithJTAC.....................................xiv

Part 1 Overview

Chapter 1 Understanding Port Mirroring Analyzers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Understanding Port Mirroring Analyzers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

AnalyzerOverview................................................5

StatisticalAnalyzerOverview.......................................5

DefaultAnalyzerOverview.........................................5

Port Mirroring at a Group of Ports Bound to Multiple Statistical

Analyzers ...................................................5

Port Mirroring Analyzer Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Configuration Guidelines for Port Mirroring Analyzers . . . . . . . . . . . . . . . . . . . . 7

Part 2 Configuring Analyzers

Chapter 2 Copy Packets to a Local Interface for Local Monitoring . . . . . . . . . . . . . . . . . 13

Configuring Mirroring on EX9200 Switches to Analyze Traffic (CLI

Procedure) .....................................................13

Configuring an Analyzer for Local Traffic Analysis . . . . . . . . . . . . . . . . . . . . . . 14

Configuring an Analyzer for Remote Traffic Analysis . . . . . . . . . . . . . . . . . . . . 14

Configuring a Statistical Analyzer for Local Traffic Analysis . . . . . . . . . . . . . . 15

Configuring a Statistical Analyzer for Remote Traffic Analysis . . . . . . . . . . . . 16

Binding Statistical Analyzers to Ports Grouped at the FPC Level . . . . . . . . . . . 17

Configuring an Analyzer with Multiple Destinations by Using Next-Hop

Groups ....................................................18

Defining a Next-Hop Group for Layer 2 Mirroring . . . . . . . . . . . . . . . . . . . . . . . 18

Example: Configuring Port Mirroring Analyzers for Local Monitoring of Employee

ResourceUse...................................................19

Chapter 3 Copy Packets to a VLAN or Bridge Domain for Remote Monitoring . . . . . . . 25

Configuring Mirroring on EX9200 Switches to Analyze Traffic (CLI

Procedure).....................................................25

Configuring an Analyzer for Local Traffic Analysis . . . . . . . . . . . . . . . . . . . . . . 26

Configuring an Analyzer for Remote Traffic Analysis . . . . . . . . . . . . . . . . . . . . 27

Configuring a Statistical Analyzer for Local Traffic Analysis . . . . . . . . . . . . . . 27

Configuring a Statistical Analyzer for Remote Traffic Analysis . . . . . . . . . . . . 28

Binding Statistical Analyzers to Ports Grouped at the FPC Level . . . . . . . . . . 29

Configuring an Analyzer with Multiple Destinations by Using Next-Hop

Groups ....................................................30

Defining a Next-Hop Group for Layer 2 Mirroring . . . . . . . . . . . . . . . . . . . . . . . 31

Example: Configuring Port Mirroring for Remote Monitoring of Employee Resource

Use ...........................................................31

Example: Configuring Mirroring to Multiple Interfaces for Remote Monitoring of

Employee Resource Use on EX9200 Switches . . . . . . . . . . . . . . . . . . . . . . . . 41

Example: Configuring Mirroring for Remote Monitoring of Employee Resource

Use Through a Transit Switch on EX9200 Switches . . . . . . . . . . . . . . . . . . . . 50

Part 3 Configuration Statements and Operational Commands

Chapter4 Configuration Statements .........................................59

egress............................................................59

egress(Analyzer)...................................................60

ingress(vlans).....................................................60

ingress(Analyzer)...................................................61

input(Analyzer)....................................................62

interface(Analyzer).................................................63

no-tag............................................................64

output(Mirroring)..................................................65

vlan (Mirroring) ....................................................66

Chapter5 Operational Commands ...........................................67

showforwarding-optionsanalyzer.....................................68

Port Mirroring Analyzers Feature Guide for EX9200 Switches

List of Figures

Part 2 Configuring Analyzers

Chapter 2 Copy Packets to a Local Interface for Local Monitoring . . . . . . . . . . . . . . . . . 13

Figure 1: Network Topology for Local Port Mirroring Example . . . . . . . . . . . . . . . . . 21

Chapter 3 Copy Packets to a VLAN or Bridge Domain for Remote Monitoring . . . . . . . 25

Figure 2: Network Topology for Remote Port Mirroring and Analysis . . . . . . . . . . . 33

Figure 3: Remote Mirroring Example Network Topology Using Multiple VLAN

Member Interfaces in the Next-Hop Group . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 4: Network Monitoring for Remote Mirroring Through a Transit Switch . . . . 51

Port Mirroring Analyzers Feature Guide for EX9200 Switches

List of Tables

AbouttheDocumentation..........................................ix

Table1:NoticeIcons..................................................xi

Table2:TextandSyntaxConventions...................................xi

Part 1 Overview

Chapter 1 Understanding Port Mirroring Analyzers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Table3:AnalyzerTerminology..........................................5

Table 4: Configuration Guidelines for Port Mirroring Analyzers . . . . . . . . . . . . . . . . . 7

Part 3 Configuration Statements and Operational Commands

Chapter5 Operational Commands ...........................................67

Table 5: show forwarding-options analyzer Output Fields . . . . . . . . . . . . . . . . . . 68

Port Mirroring Analyzers Feature Guide for EX9200 Switches

About the Documentation

•Documentation and Release Notes on page ix

•Supported Platforms on page ix

•Using the Examples in This Manual on page ix

•Documentation Conventions on page xi

•Documentation Feedback on page xiii

•Requesting Technical Support on page xiii

Documentation and Release Notes

To obtain the most current version of all Juniper Networks®technical documentation,

see the product documentation page on the Juniper Networks website at

http://www.juniper.net/techpubs/.

If the information in the latest release notes differs from the information in the

documentation, follow the product Release Notes.

Juniper Networks Books publishes books by Juniper Networks engineers and subject

matter experts. These books go beyond the technical documentation to explore the

nuances of network architecture, deployment, and administration. The current list can

be viewed at http://www.juniper.net/books.

Supported Platforms

For the features described in this document, the following platforms are supported:

•EX Series

Using the Examples in This Manual

If you want to use the examples in this manual, you can use the load merge or the load

merge relative command. These commands cause the software to merge the incoming

configuration into the current candidate configuration. The example does not become

active until you commit the candidate configuration.

If the example configuration contains the top level of the hierarchy (or multiple

hierarchies), the example is a full example. In this case, use the load merge command.

If the example configuration does not start at the top level of the hierarchy, the example

isasnippet. In this case, use the load merge relative command. These procedures are

described in the following sections.

Merging a Full Example

To merge a full example, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration example into a

text file, save the file with a name, and copy the file to a directory on your routing

platform.

For example, copy the following configuration to a file and name the file ex-script.conf.

Copy the ex-script.conf file to the /var/tmp directory on your routing platform.

system {

scripts {

commit {

file ex-script.xsl;

}

interfaces {

fxp0 {

disable;

unit 0 {

family inet {

address 10.0.0.1/24;

}

2. Merge the contents of the file into your routing platform configuration by issuing the

load merge configuration mode command:

[edit]

user@host# load merge /var/tmp/ex-script.conf

load complete

Merging a Snippet

To merge a snippet, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration snippet into a text

file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following snippet to a file and name the file

ex-script-snippet.conf. Copy the ex-script-snippet.conf file to the /var/tmp directory

on your routing platform.

commit {

file ex-script-snippet.xsl; }

2. Move to the hierarchy level that is relevant for this snippet by issuing the following

configuration mode command:

Port Mirroring Analyzers Feature Guide for EX9200 Switches

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