Sflow Configuration; Overview - Zte ZXR10 5900 Series User Manual

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C h a p t e r

Sflow Configuration

Table of Contents

Overview..........................................................................75

Configuring sFlow ..............................................................77
SFlow Configuration Example ..............................................77
SFlow Maintenance and Diagnosis........................................78
Overview
With the rapid development of network service in business envi-
ronment application, network scale becomes larger and larger, the
number of network devices increases repeatedly, and network flow
becomes more complicated, therefore the cost of network mainte-
nance keeps on increasing. How to manage the network devices
effectively and how to monitor and analyze real network traffic on
real-time have become one of the problem which device carrier pay
more attention to. At present, each equipment manufacturer pro-
vides various network flow monitor technology, but most of these
flow monitor technology are private or need specific hardware sup-
port technology. SFLOW is a standard flow monitor technology set
by IETF currently. It has low requirements on hardware , low re-
source consumption on device and good technology commonality.
Therefore it is applied by many equipment manufacturers.
SFLOW function is composed of three parts: sFlow packet sam-
pling unit, sFlow agent unit, sFlow collector(analyzer). SFlow
packet sampling unit and sFlow agent unit are generally integrated
into network device, but sFLOW collection is outside of system,
which analyzes multiple sFlow agent packets in the network.
SFlow sampling unit is the base of sFlow technology. Sampling
procedure is that sample the packet of network on the interface
which supports sFlow and send the sampling packet to sFlow agent
device to handle. SFlow Collector is the network device that sFlow
manage, monitor, collect and analyze. It is responsible for storing
packet sended from each sFlow Agent on the network and then
analyzing to give device traffic and various analysis report of ser-
vice.
Confidential and Proprietary Information of ZTE CORPORATION 75