Juniper EX9200 Series Fiche technique

Flow Monitoring Feature Guide for EX9200

Switches

Modified: 2017-01-24

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Flow Monitoring Feature Guide for EX9200 Switches

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

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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

Chapter1 UnderstandingFlowMonitoring......................................3

ActiveFlowMonitoringOverview........................................3

Part 2 Configuring Flow Monitoring

Chapter 2 Configuring Basic Flow Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ConfiguringFlowMonitoring...........................................9

Configuring Flow-Monitoring Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Configuring Flow-Monitoring Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Directing Traffic to Flow-Monitoring Interfaces . . . . . . . . . . . . . . . . . . . . . 11

Exporting Flows .............................................12

Configuring Time Periods When Flow Monitoring Is Active and

Inactive.................................................12

Example: Configuring Flow Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chapter 3 Configuring Active Flow Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Configuring Inline Active Flow Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Part 3 Configuration Statements and Operational Commands

Chapter4 ConfigurationStatements..........................................23

address(Interfaces).................................................24

cflowd(DiscardAccounting)..........................................25

core-dump ........................................................26

destination(Interfaces)..............................................27

engine-id(ForwardingOptions).......................................28

engine-type .......................................................29

export-format .....................................................30

family(Monitoring)..................................................31

filter..............................................................32

flow-active-timeout.................................................33

flow-export-destination .............................................34

flow-inactive-timeout ...............................................35

flow-table-size.....................................................36

input-interface-index ................................................37

interface(AccountingorSampling)....................................37

ipv4-flow-table-size ................................................38

ipv6-flow-table-size ................................................39

monitoring ........................................................40

multiservice-options.................................................41

output-interface-index...............................................41

output(Monitoring).................................................42

port(FlowMonitoring)...............................................43

sampling (Interfaces) ...............................................43

source-address (Forwarding Options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

syslog ............................................................44

unit ..............................................................45

Chapter5 Operational Commands ...........................................47

show services accounting aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

show services accounting aggregation template . . . . . . . . . . . . . . . . . . . . . . . . . . 52

showservicesaccountingerrors.......................................54

showservicesaccountingflow........................................58

show services accounting flow-detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

showservicesaccountingmemory.....................................68

show services accounting packet-size-distribution . . . . . . . . . . . . . . . . . . . . . . . . 70

showservicesaccountingstatus.......................................72

showservicesaccountingusage.......................................75

Flow Monitoring Feature Guide for EX9200 Switches

List of Figures

Part 1 Overview

Chapter1 UnderstandingFlowMonitoring......................................3

Figure 1: Active Monitoring Configuration Topology . . . . . . . . . . . . . . . . . . . . . . . . . 5

Flow Monitoring Feature Guide for EX9200 Switches

List of Tables

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

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

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

Part 3 Configuration Statements and Operational Commands

Chapter5 Operational Commands ...........................................47

Table 3: show services accounting aggregation Output Fields . . . . . . . . . . . . . . . 49

Table 4: show services accounting aggregation template Output Fields . . . . . . . 52

Table 5: show services accounting errors Output Fields . . . . . . . . . . . . . . . . . . . . 54

Table 6: show services accounting flow Output Fields . . . . . . . . . . . . . . . . . . . . . 58

Table 7: show services accounting flow-detail Output Fields . . . . . . . . . . . . . . . . 64

Table 8: show services accounting memory Output Fields . . . . . . . . . . . . . . . . . . 68

Table 9: show services accounting packet-size-distribution Output Fields . . . . . 70

Table 10: show services accounting status Output Fields . . . . . . . . . . . . . . . . . . . . 72

Table 11: show services accounting usage Output Fields . . . . . . . . . . . . . . . . . . . . 75

Flow Monitoring 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:

Flow Monitoring Feature Guide for EX9200 Switches

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