Configuring Sflow Monitoring Technology; Series Switch; Sampling Mechanism And Architecture Of Sflow Technology On Ex Series; Switches - Juniper EX9200 Features Manual

CHAPTER 2

Configuring sFlow Monitoring Technology

Understanding How to Use sFlow Technology for Network Monitoring on an EX Series
Switch
Sampling Mechanism and Architecture of sFlow Technology on EX Series Switches
Copyright © 2016, Juniper Networks, Inc.
Understanding How to Use sFlow Technology for Network Monitoring on an EX Series
Switch on page 23
Configuring sFlow Technology for Network Monitoring (CLI Procedure) on page 26
Example: Configuring sFlow Technology to Monitor Network Traffic on EX Series
Switches on page 27
The sFlow technology is a monitoring technology for high-speed switched or routed
networks. sFlow monitoring technology randomly samples network packets and sends
the samples to a monitoring station. You can configure sFlow technology on a Juniper
Networks EX Series Ethernet Switch to continuously monitor traffic at wire speed on all
interfaces simultaneously.
This topic describes:

Sampling Mechanism and Architecture of sFlow Technology on EX Series

Switches on page 23
Adaptive Sampling on page 24
sFlow Agent Address Assignment on page 25
sFlow technology uses the following two sampling mechanisms:
Packet-based sampling: Samples one packet out of a specified number of packets
from an interface enabled for sFlow technology.
Time-based sampling: Samples interface statistics at a specified interval from an
interface enabled for sFlow technology.
The sampling information is used to create a network traffic visibility picture. The Juniper
Networks Junos operating system (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.
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