Ipfix Configuration; Ipfix Overview - Zte ZXR10 5900E Series User Manual

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IPFIX Configuration

Table of Contents

IPFIX Overview ............................................................... 129

Configuring IPFIX ............................................................ 131
IPFIX Configuration Example ............................................. 133
IPFIX Maintenance and Diagnosis ...................................... 134
IPFIX Overview
IPFIX Overview
IPFIX (IP Flow Information Export) is used to analyze and perform
statistics to communication traffic and flow direction in network. In
2003, IETF select Netflow V9 as IPFIX standard from 5 candidate
schemes.
To analyze and perform statistics to data flow in network, it is
needed to distinguish types of packets transmitted in network.
Due to non-connection oriented characteristics of IP network, the
communication of different types of services in network can be a
series of IP packets sent from one terminal device to another ter-
minal device. This series of packets actually forms one data flow
of a service in carrier network. If management system can distin-
guish all flows in the entire network and correctly record transmit
time of each flow, occupied network port, transmit source/desti-
nation address and size of data flows, traffic and flow direction of
all communications in the entire carrier network can be analyzed
and performed with statistics.
By telling differences among different flows in network, it is avail-
able to judge if two IP packets belong to the same one flow. This
can be realized by analyzing 7 attributes of IP packet: source IP
address, destination IP address, source port id, destination id, L3
protocol type, TOS byte (DSCP), ifIndex for network device input
(or output).
With above 7 attributes of IP packet, flows of different service
types transmitted in network can be rapidly distinguished. Each
distinguished data flow can be traced separately and counted accu-
rately, its flow direction characteristics such as transmit direction
and destination can be recorded, and the start time, end time, ser-
Confidential and Proprietary Information of ZTE CORPORATION 129