2014年11月21日星期五

Cisco Catalyst 2960-X Switches NetFlow-Lite Overview



What is NetFlow-Lite?

NetFlow-Lite on Cisco Catalyst 2960-X switches collects packets randomly, classifies them into flows, and measures flow statistics as they pass through the switch. It is a true flow-based traffic-monitoring mechanism that conserves valuable forwarding bandwidth when exporting flow-based data for analysis and reporting. This export data provides visibility into traffic that is switched through the Cisco Catalyst 2960X and Catalyst 2960XR Switches.
The Cisco Catalyst 2960-X has been tested with the leading NetFlow collector applications such as Cisco Prime, ActionPacked LiveAction, Plixer Scrutinizer, and many more. 

What is NetFlow-Lite Used for?
NetFlow-Lite offers network administrators and engineers the following capabilities:
l  Unprecedented visibility: NetFlow-Lite provides real-time information about traffic flows from endpoints such as PCs, phones, IP cameras, etc. You can use this information for traffic monitoring of Layer 2 and Layer 3 traffic as well as capacity planning.
l  Network planning: You can use NetFlow-Lite to capture data over a long period of time so that customers can understand traffic patterns, top talkers, top applications, etc. This feature provides accurate data to track and anticipate network growth and plan upgrades.
l  Simplified troubleshooting: You can use NetFlow-Lite flow-based analysis techniques to understand traffic patterns, which can help in proactively detecting problems, troubleshooting efficiently, and resolving problems quickly.

NetFlow-Lite Capabilities
NetFlow-Lite provides a granular packet-sampling mechanism that is adjustable up to 1:32 and available for all interfaces. The implication is that a subset of all packets passing through the Cisco Catalyst 2960X or Catalyst 2960XR will be selected for reporting. Figure 2 shows some of the data gathered by Cisco NetFlow-Lite.

Output from Cisco NetFlow-Lite




NetFlow-Lite on the Cisco Catalyst 2960-X has the following capabilities:
l  NetFlow-Lite is supported on all downlink and uplink ports.
l  NetFlow-Lite is natively available with no additional hardware required.
l  The sampling range is from 1:32 to 1:1022.
l  The application measures 16,000 flows per switch.
l  Physical ports and VLAN Interfaces (switched virtual interfaces [SVI]) are supported.
l  NetFlow-Lite on the Cisco Catalyst 2960-X supports ingress flows only.
l  Export using standards-based IP Information export (IPFIX) or Version 9 record format.

Differences between Flexible NetFlow-Lite, Flexible NetFlow, and sFlow
Differences between NetFlow-Lite, Flexible NetFlow, and sFlow


Note
Product support of sFlow may vary.

Cisco Catalyst 2960-X Series Switches are the next generation of the world's most widely deployed access switches, providing Layer 2 and Layer 3 access features. The switches deliver best-in-class energy efficiency, while preserving your investments through mixed stacking with existing Catalyst 2960-S and SF switches.
As a world leading Cisco networking products supplier, 3Anetwork keeps stock in Cisco 2960-X series switches, and save up to 65%.

Our website: http://www.3anetwork.com
Telephone: +852-3069-7733
Email:  info@3Anetwork.com
Address: 23/F Lucky Plaza, 315-321 Lockhart Road, Wanchai, Hongkong

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