Cisco Systems OL-6900-01 manual Unix Environment Variables, Enabling NetFlow Data Export

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Chapter 3 Configuring CNS NetFlow Collection Engine

UNIX Environment Variables

UNIX Environment Variables

In releases prior to version 5.0, the CNS NetFlow Collection Engine Installation Guide recommended setting a number of environment variables, such as NFC_DIR and NFC_RESOURCEFILE. These settings should be removed from the environment for this release prior to installing and running CNS NetFlow Collection Engine. The environment is automatically determined by startup scripts in the 5.0 release.

Enabling NetFlow Data Export

Because of the configuration differences between routers and switches, any detailed configuration description for either type of NetFlow export device is beyond the scope of this guide. At the broadest conceptual level, you must perform the following types of configuration tasks on the export devices:

•Enable NetFlow services on Cisco routers; enable Multilayer Switching (MLS) on Catalyst 5000 series switches equipped with an NFFC.

•Specify the IP address and the UDP port number used to identify CNS NetFlow Collection Engine as the receiver of exported NetFlow data. In a default CNS NetFlow Collection Engine installation, UDP ports 9995 and 9996 are automatically configured as the UDP ports CNS NetFlow Collection Engine uses to receive NetFlow exported data.

•Enable NetFlow data export.

For information on Cisco IOS software features related to NetFlow services on Cisco routers, see the Cisco IOS software configuration guides and command references.

For information on specific configuration commands for Cisco Catalyst 5000 series switches, see the "NetFlow Switching Enhancements" feature module in Cisco IOS release notes and feature modules.

For information on software features related to MLS on Catalyst 5000 series switches, see the Catalyst 5000 Series Multilayer Switching User Guide.

Starting CNS NetFlow Collection Engine

To start CNS NetFlow Collection Engine, you must be logged in as the user specified during installation. Beginning in version 5.0, CNS NetFlow Collection Engine executables no longer have setuid-to-bin permission.

Step 1 To run CNS NetFlow Collection Engine, log in as the user specified during installation. Step 2 Enter the following command:

/opt/CSCOnfc/bin/nfcollector start all

CNS NetFlow Collection Engine runs as several processes. See the “CNS NetFlow Collection Engine Architectural Overview” section on page 1-5for details about these processes.

Note Typically, CNS NetFlow Collection Engine is started and allowed to run until there is some reason to stop it.

Cisco CNS NetFlow Collection Engine Installation and Configuration Guide, 5.0.2

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OL-6900-01

 

 

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Contents Corporate Headquarters Copyright 2005, Cisco Systems, Inc All rights reserved N T E N T S BGP Peer Reproduction and Distribution Installation and UseAdditional License Restrictions Description Of Other Rights and Limitations Objective AudienceCommand Syntax Conventions How This Guide Is OrganizedObtaining Documentation World Wide WebObtaining Technical Assistance Ordering DocumentationDocumentation Feedback Cisco.comTechnical Assistance Center Cisco Technical Support Web SiteCisco TAC Escalation Center Xii What Are NetFlow Services? OverviewNetFlow Services Device and IOS Release Support NetFlow Data ExportNetFlow Data Export Formats What Is CNS NetFlow Collection Engine? CNS NetFlow Collection Engine OverviewCNS NetFlow Collection Engine Architectural Overview Collector Web-Based User InterfaceBGP Peer CNS/XML InterfaceReport Generator OL-6899-01 Installing CNS NetFlow Collection Engine Verifying System RequirementsUsing the CNS NetFlow Collection Engine Installation Script Installing on a Solaris or HP-UX Platform Example CNS Next, operating system-specific configuration is verified Installing on a Red Hat Enterprise Linux Platform CSCOnfc-linux- version-build.type.i386.rpm the install image Page Uninstalling CNS NetFlow Collection Engine Configuring CNS NetFlow Collection Engine Required Patches and Software PackagesStarting CNS NetFlow Collection Engine Unix Environment VariablesEnabling NetFlow Data Export NetFlow Collection Engine Configuration Files Verifying That CNS NetFlow Collection Engine Is RunningBrowser Requirements Stopping CNS NetFlow Collection EngineD E IN-2

OL-6900-01 specifications

Cisco Systems OL-6900-01 represents a pivotal advancement in the realm of data center networking. As organizations continue to lean towards digital transformation and cloud-based solutions, the need for robust, scalable, and efficient networking equipment becomes increasingly vital. The OL-6900-01 router is engineered to meet these demands, offering an array of advanced features and technologies that cater to modern network requirements.

One of the standout features of the OL-6900-01 is its high-performance architecture. This router is equipped with a powerful CPU and a sizeable memory footprint, ensuring that it can handle significant amounts of traffic with low latency. This capability is particularly useful for data centers and enterprise environments where the speed of data processing is crucial for operational success.

The OL-6900-01 utilizes Cisco's proprietary software, providing enhanced security features, including robust firewall capabilities and threat detection mechanisms. With security being a paramount concern for organizations today, this router incorporates advanced encryption protocols and access control measures, ensuring that data remains secure in transit and at rest.

Additionally, the OL-6900-01 supports advanced routing protocols, including OSPF, BGP, and EIGRP. This versatility allows for optimal network performance as it can dynamically adjust routing paths based on network conditions, ensuring reliable connectivity and efficient resource utilization. The support for IPv6 also ensures that organizations can future-proof their networks as they transition to this next-generation protocol.

Another important characteristic of the OL-6900-01 is its scalability. Designed to accommodate growing network demands, this router supports modular expansion. Organizations can easily upgrade their systems with additional interfaces and services, ensuring that the OL-6900-01 can grow alongside their needs without requiring a complete infrastructure overhaul.

In terms of connectivity, the OL-6900-01 features multiple interfaces, including Gigabit Ethernet and 10 Gigabit SFP+ ports, providing flexibility in network design and facilitating seamless integration into existing infrastructure. Its high availability features ensure minimal downtime, making it ideal for mission-critical applications.

Overall, Cisco Systems OL-6900-01 stands out as a robust and versatile networking solution, combining performance, security, and scalability to meet the dynamic needs of modern enterprises. With its comprehensive feature set and advanced technologies, it positions itself as a valuable asset for organizations aiming for operational excellence in a digitally-driven landscape.
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