Table Of Contents
Release Notes for Cisco CNS NetFlow Collection Engine, Release 4.0
This release note provides information about new features in the CNS NetFlow Collection Engine 4.0 release. The CNS NetFlow Collection Engine application is used with the NetFlow services data export feature on Cisco routers and Catalyst 5000 and 6000 series switches. CNS NetFlow Collection Engine provides fast, scalable, and economical data collection from multiple export devices exporting NetFlow data records.
In previous releases, this product was referred to as Cisco NetFlow FlowCollector (NFC).
This release note contains the following sections:
What Is New
The following features were added in CNS NetFlow Collection Engine, Release 4.0:
•NetFlow Data Export Format Version 9
The NetFlow Data Export Version 9 is an enhancement to support different technologies such as Multicast, Internet Protocol Security (IPSec), and Multi Protocol Label Switching (MPLS). CNS NetFlow Collection Engine, Release 4.0 can collect, filter, and aggregate Version 9 data in the same way it does for NetFlow Data Export Versions 1 through 8.Version 9 is not compatible with previous versions of CNS NetFlow Collection Engine.
Users can define aggregation schemes by choosing keys and values. The key fields form a unique key for output file records. The value fields for records with the same unique key are aggregated.
CNS NetFlow Collection Engine, Release 4.0 can be deployed on a Linux platform using RedHat Linux 7.1 for i386 processors.
CNS NetFlow Collection Engine, Release 4.0 integrates with CNS using the CNS Integration Bus. This interface allows CNS applications to configure and manage CNS NetFlow Collection Engine and uses XML to format application-specific messages.
•Cisco CNS 2100 Series Intelligence Engine appliance
CNS NetFlow Collection Engine, Release 4.0 can be deployed on the Cisco CNS 2100 Series Intelligence Engine appliance.
CNS NetFlow Collection Engine operates with the following platforms:
•Solaris 2.6 or 2.8. A minimum of an Ultra-1 workstation is recommended with at least 128 MB RAM, 512 MB of swap space, and 4 GB of disk space.
•HP-UX, Version 11i (32-bit and 64-bit are supported). A minimum of a Class C workstation is recommended with at least 128 MB RAM, 512 MB of swap space, and 4 GB of disk space.
•Linux for RedHat Linux 7.1 for i386 processors. Requires RedHat Package Manager (RPM). An i386 processor-based Linux platform is required with at least 128 MB RAM, 512 MB of swap space, and 4 GB of disk space.
•Cisco CNS 2100 Series Intelligence Engine appliance.
Note To prevent NetFlow data export packet loss, the workstation should be dedicated to the CNS NetFlow Collections Engine and should not be running other applications.
CNS NetFlow Collection Engine, Release 4.0 requires at least 45 MB of disk space for its binary and configuration files.
CNS NetFlow Collection Engine generates output files containing aggregated data. These files require additional disk space; the exact amount depends on the flow arrival rate, collection interval, number of aggregation schemes specified, binary versus ASCII data file types, use of compression or not, and data file retention policies.
For more information on planning and managing disk space usage, see the section about Managing Disk Space in Chapter 5 of the Cisco CNS NetFlow Collection Engine Installation and User's Guide.
NetFlow Services and IOS Release Support
CNS NetFlow Collection Engine functionality is currently available with the following Cisco devices:
•Catalyst 5000 series switches equipped with a NetFlow feature card (NFFC)
•Catalyst 6000 series switches.
You can find the most up-to-date information available to help you determine the compatibility among different Cisco hardware platforms, Cisco IOS software releases, and supported NetFlow data export versions at the following URL:
Use these Release Notes with the Cisco CNS NetFlow Collection Engine Installation and User Guide, Part Number OL-3230-01. This document is available online through Cisco Connection Online at the following URL:
If you are deploying the Cisco CNS NetFlow Collection Engine, Release 4.0 product on the Cisco CNS 2100 Series Intelligence Engine appliance, refer to the following documentation:
•Cisco CNS NetFlow Collection Engine, Release 4.0 Quick Start (Part Number 78-15144-01)
•Release Notes for Cisco CNS 2100 Series Intelligence Engine (Part Number 78-14019-02)
•Cisco CNS 2100 Series Intelligence Engine Installation Guide (Part Number 78-13857-02)
•Cisco CNS 2100 Series Intelligence Engine Machine Code License (Part Number 78-14318-02)
•Regulatory Compliance and Safety Information for Cisco CNS 2100 Series Intelligence Engine e (Part Number 78-12302-03)
You can access the Cisco CNS 2100 Series Intelligence Engine appliance documentation from the following URL:
The following sections explain how to obtain documentation from Cisco Systems.
World Wide Web
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Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.
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Technical Assistance Center
The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.
Inquiries to Cisco TAC are categorized according to the urgency of the issue:
•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.
•Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.
•Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.
•Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.
Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable.
Cisco TAC Web Site
The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL:
All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register:
If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL:
If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:
Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Release Notes for Cisco CNS NetFlow Collection Engine, Release 4.0
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