Cisco Cisco IOS Software Release 12.4(4)T Données agrégées
Product Bulletin
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 29 of 299
Benefits
●
Enable smooth migration from traditional NetFlow to Flexible NetFlow.
Hardware
Routers
● Cisco 800, 1800, 2800, 3800, 7200, and 7300 Series Routers
Additional Information:
●
●
Product Management Contact:
Jean-Charles Griviaud,
3.2.3) Flexible NetFlow—TopTalkers CLI Support
Understanding who is using the network and for how long, what protocols and applications are
being utilized and where the network data is flowing is a necessity for today’s IP network
managers. NetFlow data can be used for a variety of purposes, including network management and
planning, user and security monitoring, protocol and application monitoring, Enterprise accounting,
and departmental charge backs, Internet Service Provider (ISP) billing, data warehousing, and data
mining for marketing purposes.
Understanding who is using the network and for how long, what protocols and applications are
being utilized and where the network data is flowing is a necessity for today’s IP network
managers. NetFlow data can be used for a variety of purposes, including network management and
planning, user and security monitoring, protocol and application monitoring, Enterprise accounting,
and departmental charge backs, Internet Service Provider (ISP) billing, data warehousing, and data
mining for marketing purposes.
Flexible NetFlow CLI is used extensively for troubleshooting and understanding network behavior.
Flexible NetFlow CLI has been enhanced to provide advanced search capabilities. The new CLI
provides a generic set of tools to display any kind of Flow Monitor (IPv4, IPv6, Layer2, etc.) in a
more efficient way. Flexible NetFlow CLI allows filtering, aggregating and sorting the content of a
Flow Monitor:
Flexible NetFlow CLI has been enhanced to provide advanced search capabilities. The new CLI
provides a generic set of tools to display any kind of Flow Monitor (IPv4, IPv6, Layer2, etc.) in a
more efficient way. Flexible NetFlow CLI allows filtering, aggregating and sorting the content of a
Flow Monitor:
●
Flow Filtering
: The user will be able to filter on any field available in the Flow Record used
by the Flow Monitor being examined. The filtering can be an exact match or a match on a
range or a regular expression.
range or a regular expression.
●
Flow Aggregation
: The user will be able to display the Flows that are formed by
aggregating any subset of the key fields available in the Flow Record used by the Flow
Monitor being examined.
Monitor being examined.
●
Flow Sorting
: the user will be able to control the sorting of Flows using the fields that are
available in the FNF Cache to be shown. This could be the primary or secondary (post
aggregation step) cache.
aggregation step) cache.
Benefits
●
Security
: Able to view the list of top talkers to see if traffic patterns consistent with a Denial
of Service (DoS) attack are present in the network.
●
Load balancing
: Able to identify the most heavily used parts of the system and move
network traffic over to less-used parts of the system
●
Traffic analysis
: Consulting the data retrieved Top talker CLI
●
Talkers feature can assist in general traffic study and planning for the network.
Hardware
Routers
● Cisco 800, 1800, 2800, 3800, 7200, and 7300 Series Routers