Switches - Juniper EX9200 Features Manual

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Example: Configuring sFlow Technology to Monitor Network Traffic on EX Series

Switches

Copyright © 2016, Juniper Networks, Inc.
To specify an ingress sampling rate:
[edit protocols sflow]
user@switch# set sample-rate
To configure the polling interval and the egress and ingress sampling rates at the
5.
interface level:
[edit protocols sflow
user@switch# set polling-interval
[edit protocols sflow interfaces]
user@switch# set sample-rate
[edit protocols sflow interfaces]
user@switch# set sample-rate
NOTE: The interface-level configuration overrides the global configuration.
To specify an IP address to be used as the agent ID for the sFlow agent:
6.
[edit protocols sflow]
user@switch# set agent-id
To specify the source IP address to be used for sFlow datagrams:
7.
[edit protocols sflow]
user@switch# set source-ip
Example: Configuring sFlow Technology to Monitor Network Traffic on EX Series
Switches on page 27
Understanding How to Use sFlow Technology for Network Monitoring on an EX Series
Switch on page 23
sFlow technology is a networking monitoring technology for high-speed switched or
routed networks. It is a technology that is based on statistical sampling. You can configure
sFlow technology to continuously monitor traffic at wire speed on all interfaces
simultaneously. sFlow data can be used to provide network traffic visibility information.
You can specify sampling rates for ingress and egress packets. Junos OS fully supports
the sFlow standard described in RFC 3176, InMon Corporation's sFlow: A Method for
Monitoring Traffic in Switched and Routed Networks.
This example describes how to configure and use sFlow technology to monitor network
traffic.
Requirements on page 28
Overview and Topology on page 28
Configuration on page 28
Verification on page 30
Chapter 2: Configuring sFlow Monitoring Technology
ingress number
interfaces interface-name]
seconds
egress number
ingress number
ip4/ipv6 -address
ip4/ipv6-address
27